/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_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:50:12,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:50:13,034 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:50:13,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:50:13,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:50:13,060 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:50:13,061 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:50:13,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:50:13,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:50:13,062 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:50:13,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:50:13,062 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:50:13,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:50:13,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:50:13,063 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:50:13,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:50:13,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:50:13,064 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:50:13,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:50:13,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:50:13,064 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:50:13,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:50:13,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:50:13,065 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:50:13,066 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:50:13,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:50:13,066 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:50:13,066 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:50:13,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:50:13,067 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:50:13,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:50:13,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:50:13,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:50:13,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:50:13,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:50:13,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:50:13,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:50:13,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:50:13,069 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:50:13,069 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:50:13,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:50:13,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:50:13,070 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:50:13,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:50:13,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:50:13,071 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:50:13,071 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:50:13,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:50:13,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:50:13,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:50:13,317 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:50:13,317 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:50:13,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2023-12-25 05:50:14,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:50:14,780 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:50:14,781 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2023-12-25 05:50:14,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d6634933/2a183b6e2a7f4644bba0092794418325/FLAGf056c019d [2023-12-25 05:50:14,812 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d6634933/2a183b6e2a7f4644bba0092794418325 [2023-12-25 05:50:14,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:50:14,816 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:50:14,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:50:14,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:50:14,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:50:14,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:50:14" (1/1) ... [2023-12-25 05:50:14,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be9f0c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:14, skipping insertion in model container [2023-12-25 05:50:14,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:50:14" (1/1) ... [2023-12-25 05:50:14,874 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:50:15,076 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_spec4_product33.cil.c[11229,11242] [2023-12-25 05:50:15,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:50:15,270 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:50:15,280 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:50:15,321 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_spec4_product33.cil.c[11229,11242] [2023-12-25 05:50:15,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:50:15,422 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:50:15,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-25 05:50:15,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2023-12-25 05:50:15,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [423] [2023-12-25 05:50:15,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [750] [2023-12-25 05:50:15,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [969] [2023-12-25 05:50:15,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1004] [2023-12-25 05:50:15,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1415] [2023-12-25 05:50:15,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2480] [2023-12-25 05:50:15,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2617] [2023-12-25 05:50:15,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2634] [2023-12-25 05:50:15,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2661] [2023-12-25 05:50:15,461 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_spec4_product33.cil.c[11229,11242] [2023-12-25 05:50:15,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:50:15,580 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:50:15,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15 WrapperNode [2023-12-25 05:50:15,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:50:15,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:50:15,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:50:15,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:50:15,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,699 INFO L138 Inliner]: procedures = 136, calls = 212, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1005 [2023-12-25 05:50:15,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:50:15,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:50:15,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:50:15,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:50:15,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,716 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,733 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-25 05:50:15,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:50:15,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:50:15,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:50:15,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:50:15,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (1/1) ... [2023-12-25 05:50:15,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:50:15,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:50:15,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 05:50:15,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 05:50:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:50:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:50:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:50:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:50:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:50:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:50:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:50:15,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:50:15,845 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:50:15,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:50:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:50:15,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:50:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:50:15,847 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:50:15,847 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:50:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:50:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:50:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:50:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:50:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:50:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:50:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:50:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-25 05:50:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-25 05:50:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:50:15,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:50:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:50:15,848 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:50:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:50:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:50:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:50:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:50:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:50:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:50:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:50:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:50:15,849 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:50:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:50:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:50:15,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:50:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:50:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:50:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:50:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:50:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:50:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:50:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:50:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:50:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:50:15,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:50:15,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:50:15,851 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:50:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:50:15,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:50:15,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:50:16,027 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:50:16,029 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:50:16,836 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:50:16,944 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:50:16,944 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:50:16,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:50:16 BoogieIcfgContainer [2023-12-25 05:50:16,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:50:16,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:50:16,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:50:16,960 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:50:16,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:50:14" (1/3) ... [2023-12-25 05:50:16,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690a2cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:50:16, skipping insertion in model container [2023-12-25 05:50:16,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:50:15" (2/3) ... [2023-12-25 05:50:16,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690a2cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:50:16, skipping insertion in model container [2023-12-25 05:50:16,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:50:16" (3/3) ... [2023-12-25 05:50:16,962 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product33.cil.c [2023-12-25 05:50:16,975 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:50:16,975 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:50:17,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:50:17,014 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;@783b5f62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:50:17,014 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:50:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 268 states have (on average 1.5597014925373134) internal successors, (418), 272 states have internal predecessors, (418), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-25 05:50:17,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:50:17,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:17,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:17,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:17,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -284518571, now seen corresponding path program 1 times [2023-12-25 05:50:17,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:17,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182778231] [2023-12-25 05:50:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:17,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:17,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:17,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:17,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:50:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:17,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:50:17,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:17,389 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:50:17,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:17,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:17,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182778231] [2023-12-25 05:50:17,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182778231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:17,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:17,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:50:17,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007160716] [2023-12-25 05:50:17,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:17,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:50:17,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:17,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:50:17,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:50:17,426 INFO L87 Difference]: Start difference. First operand has 357 states, 268 states have (on average 1.5597014925373134) internal successors, (418), 272 states have internal predecessors, (418), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:17,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:17,517 INFO L93 Difference]: Finished difference Result 565 states and 844 transitions. [2023-12-25 05:50:17,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:50:17,520 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2023-12-25 05:50:17,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:17,533 INFO L225 Difference]: With dead ends: 565 [2023-12-25 05:50:17,533 INFO L226 Difference]: Without dead ends: 354 [2023-12-25 05:50:17,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:50:17,539 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:17,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 522 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-12-25 05:50:17,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2023-12-25 05:50:17,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 266 states have (on average 1.5451127819548873) internal successors, (411), 269 states have internal predecessors, (411), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-25 05:50:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 536 transitions. [2023-12-25 05:50:17,602 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 536 transitions. Word has length 101 [2023-12-25 05:50:17,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:17,603 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 536 transitions. [2023-12-25 05:50:17,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:17,603 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 536 transitions. [2023-12-25 05:50:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:50:17,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:17,607 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:17,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:17,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:17,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:17,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:17,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1364968178, now seen corresponding path program 1 times [2023-12-25 05:50:17,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:17,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032808946] [2023-12-25 05:50:17,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:17,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:17,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:17,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:17,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:50:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:18,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:50:18,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 05:50:18,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:18,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:18,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032808946] [2023-12-25 05:50:18,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032808946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:18,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:18,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:18,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685435167] [2023-12-25 05:50:18,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:18,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:18,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:18,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:18,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:18,097 INFO L87 Difference]: Start difference. First operand 354 states and 536 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:18,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:18,241 INFO L93 Difference]: Finished difference Result 703 states and 1066 transitions. [2023-12-25 05:50:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:18,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 102 [2023-12-25 05:50:18,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:18,244 INFO L225 Difference]: With dead ends: 703 [2023-12-25 05:50:18,244 INFO L226 Difference]: Without dead ends: 356 [2023-12-25 05:50:18,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:18,247 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 8 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:18,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2029 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-12-25 05:50:18,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2023-12-25 05:50:18,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 267 states have (on average 1.5430711610486891) internal successors, (412), 271 states have internal predecessors, (412), 63 states have call successors, (63), 24 states have call predecessors, (63), 25 states have return successors, (64), 62 states have call predecessors, (64), 62 states have call successors, (64) [2023-12-25 05:50:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 539 transitions. [2023-12-25 05:50:18,262 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 539 transitions. Word has length 102 [2023-12-25 05:50:18,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:18,263 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 539 transitions. [2023-12-25 05:50:18,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 539 transitions. [2023-12-25 05:50:18,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:50:18,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:18,265 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:18,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:18,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:18,472 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:18,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:18,473 INFO L85 PathProgramCache]: Analyzing trace with hash 454316117, now seen corresponding path program 1 times [2023-12-25 05:50:18,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:18,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351116761] [2023-12-25 05:50:18,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:18,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:18,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:18,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:18,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:50:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:18,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:50:18,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 05:50:18,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:18,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:18,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351116761] [2023-12-25 05:50:18,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351116761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:18,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:18,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:18,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480468073] [2023-12-25 05:50:18,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:18,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:18,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:18,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:18,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:18,741 INFO L87 Difference]: Start difference. First operand 356 states and 539 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:18,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:18,866 INFO L93 Difference]: Finished difference Result 705 states and 1070 transitions. [2023-12-25 05:50:18,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:18,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2023-12-25 05:50:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:18,869 INFO L225 Difference]: With dead ends: 705 [2023-12-25 05:50:18,869 INFO L226 Difference]: Without dead ends: 358 [2023-12-25 05:50:18,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:18,871 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 8 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:18,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2015 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-25 05:50:18,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2023-12-25 05:50:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 268 states have (on average 1.541044776119403) internal successors, (413), 273 states have internal predecessors, (413), 63 states have call successors, (63), 24 states have call predecessors, (63), 26 states have return successors, (68), 62 states have call predecessors, (68), 62 states have call successors, (68) [2023-12-25 05:50:18,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 544 transitions. [2023-12-25 05:50:18,882 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 544 transitions. Word has length 103 [2023-12-25 05:50:18,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:18,883 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 544 transitions. [2023-12-25 05:50:18,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 544 transitions. [2023-12-25 05:50:18,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:50:18,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:18,885 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:18,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:19,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:19,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:19,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:19,092 INFO L85 PathProgramCache]: Analyzing trace with hash 557419967, now seen corresponding path program 1 times [2023-12-25 05:50:19,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:19,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258958038] [2023-12-25 05:50:19,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:19,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:19,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:19,095 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:19,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:50:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:19,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:50:19,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:50:19,347 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:19,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:19,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258958038] [2023-12-25 05:50:19,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258958038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:19,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:19,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:19,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767578797] [2023-12-25 05:50:19,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:19,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:19,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:19,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:19,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:19,364 INFO L87 Difference]: Start difference. First operand 358 states and 544 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:19,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:19,505 INFO L93 Difference]: Finished difference Result 697 states and 1060 transitions. [2023-12-25 05:50:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:19,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2023-12-25 05:50:19,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:19,508 INFO L225 Difference]: With dead ends: 697 [2023-12-25 05:50:19,508 INFO L226 Difference]: Without dead ends: 358 [2023-12-25 05:50:19,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:19,510 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 8 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:19,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2029 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:19,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-25 05:50:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2023-12-25 05:50:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 268 states have (on average 1.541044776119403) internal successors, (413), 273 states have internal predecessors, (413), 63 states have call successors, (63), 24 states have call predecessors, (63), 26 states have return successors, (67), 62 states have call predecessors, (67), 62 states have call successors, (67) [2023-12-25 05:50:19,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 543 transitions. [2023-12-25 05:50:19,522 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 543 transitions. Word has length 104 [2023-12-25 05:50:19,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:19,522 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 543 transitions. [2023-12-25 05:50:19,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:19,522 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 543 transitions. [2023-12-25 05:50:19,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:50:19,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:19,524 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:19,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:19,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:19,745 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:19,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:19,745 INFO L85 PathProgramCache]: Analyzing trace with hash 25292776, now seen corresponding path program 2 times [2023-12-25 05:50:19,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:19,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319010058] [2023-12-25 05:50:19,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:50:19,746 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:19,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:19,748 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:19,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:50:19,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:50:19,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:50:19,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:50:19,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:50:20,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:20,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:20,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319010058] [2023-12-25 05:50:20,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319010058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:20,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:20,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:50:20,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570824605] [2023-12-25 05:50:20,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:20,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:50:20,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:20,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:50:20,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:50:20,057 INFO L87 Difference]: Start difference. First operand 358 states and 543 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:20,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:20,508 INFO L93 Difference]: Finished difference Result 700 states and 1065 transitions. [2023-12-25 05:50:20,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:50:20,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2023-12-25 05:50:20,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:20,512 INFO L225 Difference]: With dead ends: 700 [2023-12-25 05:50:20,512 INFO L226 Difference]: Without dead ends: 698 [2023-12-25 05:50:20,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:50:20,513 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 462 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:20,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 3339 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:50:20,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2023-12-25 05:50:20,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 695. [2023-12-25 05:50:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 524 states have (on average 1.547709923664122) internal successors, (811), 531 states have internal predecessors, (811), 120 states have call successors, (120), 47 states have call predecessors, (120), 50 states have return successors, (130), 120 states have call predecessors, (130), 118 states have call successors, (130) [2023-12-25 05:50:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1061 transitions. [2023-12-25 05:50:20,537 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1061 transitions. Word has length 105 [2023-12-25 05:50:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:20,537 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 1061 transitions. [2023-12-25 05:50:20,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:20,537 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1061 transitions. [2023-12-25 05:50:20,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:50:20,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:20,540 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:20,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:20,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:20,744 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:20,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:20,745 INFO L85 PathProgramCache]: Analyzing trace with hash 918966838, now seen corresponding path program 1 times [2023-12-25 05:50:20,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:20,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595599582] [2023-12-25 05:50:20,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:20,746 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:20,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:20,761 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:20,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:50:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:20,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:50:20,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:21,009 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:50:21,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:21,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:21,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595599582] [2023-12-25 05:50:21,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595599582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:21,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:21,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:21,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066540502] [2023-12-25 05:50:21,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:21,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:21,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:21,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:21,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:21,011 INFO L87 Difference]: Start difference. First operand 695 states and 1061 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:21,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:21,114 INFO L93 Difference]: Finished difference Result 1373 states and 2099 transitions. [2023-12-25 05:50:21,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:21,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 106 [2023-12-25 05:50:21,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:21,119 INFO L225 Difference]: With dead ends: 1373 [2023-12-25 05:50:21,119 INFO L226 Difference]: Without dead ends: 697 [2023-12-25 05:50:21,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:21,141 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 6 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:21,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2031 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2023-12-25 05:50:21,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2023-12-25 05:50:21,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 525 states have (on average 1.5466666666666666) internal successors, (812), 533 states have internal predecessors, (812), 120 states have call successors, (120), 47 states have call predecessors, (120), 51 states have return successors, (132), 120 states have call predecessors, (132), 118 states have call successors, (132) [2023-12-25 05:50:21,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1064 transitions. [2023-12-25 05:50:21,203 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1064 transitions. Word has length 106 [2023-12-25 05:50:21,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:21,203 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 1064 transitions. [2023-12-25 05:50:21,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1064 transitions. [2023-12-25 05:50:21,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:50:21,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:21,210 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:21,238 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 [2023-12-25 05:50:21,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:21,411 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:21,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:21,411 INFO L85 PathProgramCache]: Analyzing trace with hash 686138340, now seen corresponding path program 1 times [2023-12-25 05:50:21,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:21,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423093639] [2023-12-25 05:50:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:21,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:21,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:21,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:21,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:50:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:21,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:50:21,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:50:21,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:21,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:21,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423093639] [2023-12-25 05:50:21,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423093639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:21,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:21,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:21,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411880920] [2023-12-25 05:50:21,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:21,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:21,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:21,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:21,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:21,874 INFO L87 Difference]: Start difference. First operand 697 states and 1064 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:22,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:22,001 INFO L93 Difference]: Finished difference Result 1033 states and 1575 transitions. [2023-12-25 05:50:22,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:22,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 107 [2023-12-25 05:50:22,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:22,003 INFO L225 Difference]: With dead ends: 1033 [2023-12-25 05:50:22,004 INFO L226 Difference]: Without dead ends: 360 [2023-12-25 05:50:22,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:22,006 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 8 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:22,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2016 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:22,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-12-25 05:50:22,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2023-12-25 05:50:22,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 269 states have (on average 1.5390334572490707) internal successors, (414), 275 states have internal predecessors, (414), 63 states have call successors, (63), 24 states have call predecessors, (63), 27 states have return successors, (68), 62 states have call predecessors, (68), 62 states have call successors, (68) [2023-12-25 05:50:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 545 transitions. [2023-12-25 05:50:22,015 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 545 transitions. Word has length 107 [2023-12-25 05:50:22,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:22,015 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 545 transitions. [2023-12-25 05:50:22,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 545 transitions. [2023-12-25 05:50:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:50:22,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:22,017 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:22,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:22,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:22,218 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:22,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:22,219 INFO L85 PathProgramCache]: Analyzing trace with hash 598514338, now seen corresponding path program 1 times [2023-12-25 05:50:22,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:22,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232543161] [2023-12-25 05:50:22,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:22,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:22,221 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:22,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:50:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:22,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:50:22,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:22,454 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:50:22,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:22,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:22,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232543161] [2023-12-25 05:50:22,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232543161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:22,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:22,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:22,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580461082] [2023-12-25 05:50:22,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:22,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:22,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:22,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:22,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:22,456 INFO L87 Difference]: Start difference. First operand 360 states and 545 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:22,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:22,598 INFO L93 Difference]: Finished difference Result 699 states and 1063 transitions. [2023-12-25 05:50:22,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:22,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 107 [2023-12-25 05:50:22,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:22,600 INFO L225 Difference]: With dead ends: 699 [2023-12-25 05:50:22,600 INFO L226 Difference]: Without dead ends: 362 [2023-12-25 05:50:22,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:22,604 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 6 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2018 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 [2023-12-25 05:50:22,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2018 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:22,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-12-25 05:50:22,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2023-12-25 05:50:22,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 270 states have (on average 1.537037037037037) internal successors, (415), 277 states have internal predecessors, (415), 63 states have call successors, (63), 24 states have call predecessors, (63), 28 states have return successors, (72), 62 states have call predecessors, (72), 62 states have call successors, (72) [2023-12-25 05:50:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 550 transitions. [2023-12-25 05:50:22,614 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 550 transitions. Word has length 107 [2023-12-25 05:50:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:22,614 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 550 transitions. [2023-12-25 05:50:22,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 550 transitions. [2023-12-25 05:50:22,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:50:22,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:22,615 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:22,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:22,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:22,822 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:22,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:22,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1658708821, now seen corresponding path program 1 times [2023-12-25 05:50:22,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:22,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001213745] [2023-12-25 05:50:22,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:22,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:22,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:22,841 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:22,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:50:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:23,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:23,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:23,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:23,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:23,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001213745] [2023-12-25 05:50:23,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001213745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:23,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:23,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:23,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374395540] [2023-12-25 05:50:23,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:23,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:23,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:23,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:23,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:23,119 INFO L87 Difference]: Start difference. First operand 362 states and 550 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:23,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:23,216 INFO L93 Difference]: Finished difference Result 569 states and 845 transitions. [2023-12-25 05:50:23,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:23,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2023-12-25 05:50:23,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:23,220 INFO L225 Difference]: With dead ends: 569 [2023-12-25 05:50:23,223 INFO L226 Difference]: Without dead ends: 364 [2023-12-25 05:50:23,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:23,226 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 0 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:23,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1037 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:23,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-12-25 05:50:23,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2023-12-25 05:50:23,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 272 states have (on average 1.5330882352941178) internal successors, (417), 279 states have internal predecessors, (417), 63 states have call successors, (63), 24 states have call predecessors, (63), 28 states have return successors, (72), 62 states have call predecessors, (72), 62 states have call successors, (72) [2023-12-25 05:50:23,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 552 transitions. [2023-12-25 05:50:23,240 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 552 transitions. Word has length 108 [2023-12-25 05:50:23,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:23,241 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 552 transitions. [2023-12-25 05:50:23,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:23,241 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 552 transitions. [2023-12-25 05:50:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:50:23,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:23,242 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:23,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:23,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:23,449 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:23,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:23,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1095232374, now seen corresponding path program 1 times [2023-12-25 05:50:23,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:23,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360269763] [2023-12-25 05:50:23,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:23,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:23,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:23,466 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:23,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:50:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:23,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:23,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:23,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:23,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:23,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360269763] [2023-12-25 05:50:23,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360269763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:23,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:23,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:23,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882019214] [2023-12-25 05:50:23,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:23,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:23,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:23,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:23,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:23,694 INFO L87 Difference]: Start difference. First operand 364 states and 552 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:23,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:23,752 INFO L93 Difference]: Finished difference Result 758 states and 1164 transitions. [2023-12-25 05:50:23,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:23,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2023-12-25 05:50:23,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:23,755 INFO L225 Difference]: With dead ends: 758 [2023-12-25 05:50:23,755 INFO L226 Difference]: Without dead ends: 420 [2023-12-25 05:50:23,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:23,757 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 109 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:23,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1012 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:23,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-12-25 05:50:23,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 415. [2023-12-25 05:50:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 312 states have (on average 1.5512820512820513) internal successors, (484), 319 states have internal predecessors, (484), 74 states have call successors, (74), 24 states have call predecessors, (74), 28 states have return successors, (85), 73 states have call predecessors, (85), 73 states have call successors, (85) [2023-12-25 05:50:23,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 643 transitions. [2023-12-25 05:50:23,771 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 643 transitions. Word has length 115 [2023-12-25 05:50:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:23,772 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 643 transitions. [2023-12-25 05:50:23,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 643 transitions. [2023-12-25 05:50:23,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:50:23,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:23,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:23,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:23,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:23,980 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:23,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:23,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1421889957, now seen corresponding path program 1 times [2023-12-25 05:50:23,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:23,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92099413] [2023-12-25 05:50:23,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:23,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:23,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:23,983 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:23,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:50:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:24,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:50:24,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:50:24,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:24,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:24,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92099413] [2023-12-25 05:50:24,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92099413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:24,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:24,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:50:24,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982028113] [2023-12-25 05:50:24,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:24,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:50:24,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:24,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:50:24,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:50:24,239 INFO L87 Difference]: Start difference. First operand 415 states and 643 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:24,331 INFO L93 Difference]: Finished difference Result 822 states and 1264 transitions. [2023-12-25 05:50:24,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:50:24,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2023-12-25 05:50:24,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:24,334 INFO L225 Difference]: With dead ends: 822 [2023-12-25 05:50:24,334 INFO L226 Difference]: Without dead ends: 431 [2023-12-25 05:50:24,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:24,335 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 497 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:24,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1058 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:24,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-12-25 05:50:24,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 423. [2023-12-25 05:50:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 319 states have (on average 1.536050156739812) internal successors, (490), 325 states have internal predecessors, (490), 74 states have call successors, (74), 26 states have call predecessors, (74), 29 states have return successors, (81), 73 states have call predecessors, (81), 73 states have call successors, (81) [2023-12-25 05:50:24,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 645 transitions. [2023-12-25 05:50:24,353 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 645 transitions. Word has length 116 [2023-12-25 05:50:24,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:24,353 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 645 transitions. [2023-12-25 05:50:24,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:50:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 645 transitions. [2023-12-25 05:50:24,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 05:50:24,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:24,355 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:24,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:24,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:24,561 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:24,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:24,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1273509363, now seen corresponding path program 1 times [2023-12-25 05:50:24,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:24,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056251962] [2023-12-25 05:50:24,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:24,563 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:24,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:24,564 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:24,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:50:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:24,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:50:24,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:24,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:50:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:24,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:24,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056251962] [2023-12-25 05:50:24,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056251962] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:50:24,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:50:24,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:50:24,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250278742] [2023-12-25 05:50:24,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:50:24,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:50:24,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:24,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:50:24,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:24,857 INFO L87 Difference]: Start difference. First operand 423 states and 645 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:50:25,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:25,075 INFO L93 Difference]: Finished difference Result 973 states and 1539 transitions. [2023-12-25 05:50:25,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:50:25,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 117 [2023-12-25 05:50:25,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:25,079 INFO L225 Difference]: With dead ends: 973 [2023-12-25 05:50:25,079 INFO L226 Difference]: Without dead ends: 768 [2023-12-25 05:50:25,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:50:25,081 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 541 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:25,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1776 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:50:25,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-12-25 05:50:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 753. [2023-12-25 05:50:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 585 states have (on average 1.5897435897435896) internal successors, (930), 591 states have internal predecessors, (930), 138 states have call successors, (138), 26 states have call predecessors, (138), 29 states have return successors, (155), 137 states have call predecessors, (155), 137 states have call successors, (155) [2023-12-25 05:50:25,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1223 transitions. [2023-12-25 05:50:25,111 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1223 transitions. Word has length 117 [2023-12-25 05:50:25,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:25,112 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 1223 transitions. [2023-12-25 05:50:25,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-25 05:50:25,112 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1223 transitions. [2023-12-25 05:50:25,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:50:25,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:25,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:25,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:25,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:25,321 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:25,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:25,321 INFO L85 PathProgramCache]: Analyzing trace with hash 778534793, now seen corresponding path program 1 times [2023-12-25 05:50:25,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:25,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379240588] [2023-12-25 05:50:25,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:25,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:25,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:25,332 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:25,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:50:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:25,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:25,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:25,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:25,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:25,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379240588] [2023-12-25 05:50:25,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379240588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:25,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:25,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:25,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775941504] [2023-12-25 05:50:25,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:25,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:25,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:25,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:25,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:25,668 INFO L87 Difference]: Start difference. First operand 753 states and 1223 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:25,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:25,747 INFO L93 Difference]: Finished difference Result 1747 states and 2894 transitions. [2023-12-25 05:50:25,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:25,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-12-25 05:50:25,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:25,753 INFO L225 Difference]: With dead ends: 1747 [2023-12-25 05:50:25,753 INFO L226 Difference]: Without dead ends: 1070 [2023-12-25 05:50:25,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:25,757 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 103 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:25,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1031 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:25,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2023-12-25 05:50:25,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1065. [2023-12-25 05:50:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 833 states have (on average 1.6110444177671068) internal successors, (1342), 839 states have internal predecessors, (1342), 202 states have call successors, (202), 26 states have call predecessors, (202), 29 states have return successors, (229), 201 states have call predecessors, (229), 201 states have call successors, (229) [2023-12-25 05:50:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1773 transitions. [2023-12-25 05:50:25,798 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1773 transitions. Word has length 120 [2023-12-25 05:50:25,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:25,799 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1773 transitions. [2023-12-25 05:50:25,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:25,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1773 transitions. [2023-12-25 05:50:25,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:50:25,803 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:25,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:25,810 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 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:26,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:26,011 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:26,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:26,011 INFO L85 PathProgramCache]: Analyzing trace with hash 285205335, now seen corresponding path program 1 times [2023-12-25 05:50:26,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:26,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705623593] [2023-12-25 05:50:26,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:26,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:26,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:26,013 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:26,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:50:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:26,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:26,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:26,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:26,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:26,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705623593] [2023-12-25 05:50:26,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705623593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:26,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:26,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:26,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506115979] [2023-12-25 05:50:26,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:26,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:26,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:26,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:26,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:26,256 INFO L87 Difference]: Start difference. First operand 1065 states and 1773 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:26,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:26,343 INFO L93 Difference]: Finished difference Result 2511 states and 4211 transitions. [2023-12-25 05:50:26,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:26,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2023-12-25 05:50:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:26,350 INFO L225 Difference]: With dead ends: 2511 [2023-12-25 05:50:26,351 INFO L226 Difference]: Without dead ends: 1572 [2023-12-25 05:50:26,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:26,354 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 101 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:26,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1028 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:26,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2023-12-25 05:50:26,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1567. [2023-12-25 05:50:26,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1240 states have (on average 1.6185483870967743) internal successors, (2007), 1246 states have internal predecessors, (2007), 297 states have call successors, (297), 26 states have call predecessors, (297), 29 states have return successors, (324), 296 states have call predecessors, (324), 296 states have call successors, (324) [2023-12-25 05:50:26,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2628 transitions. [2023-12-25 05:50:26,416 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2628 transitions. Word has length 121 [2023-12-25 05:50:26,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:26,417 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2628 transitions. [2023-12-25 05:50:26,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:26,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2628 transitions. [2023-12-25 05:50:26,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:50:26,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:26,425 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:26,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:26,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:26,631 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:26,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:26,632 INFO L85 PathProgramCache]: Analyzing trace with hash 759764411, now seen corresponding path program 1 times [2023-12-25 05:50:26,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:26,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454388632] [2023-12-25 05:50:26,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:26,632 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:26,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:26,643 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:26,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:50:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:26,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:26,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:26,878 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:26,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:26,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:26,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454388632] [2023-12-25 05:50:26,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454388632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:26,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:26,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:26,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117959661] [2023-12-25 05:50:26,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:26,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:26,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:26,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:26,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:26,880 INFO L87 Difference]: Start difference. First operand 1567 states and 2628 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:26,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:26,981 INFO L93 Difference]: Finished difference Result 3646 states and 6169 transitions. [2023-12-25 05:50:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:26,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2023-12-25 05:50:26,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:26,993 INFO L225 Difference]: With dead ends: 3646 [2023-12-25 05:50:26,993 INFO L226 Difference]: Without dead ends: 2331 [2023-12-25 05:50:27,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:27,001 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 99 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:27,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1020 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:27,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2023-12-25 05:50:27,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2326. [2023-12-25 05:50:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 1876 states have (on average 1.6247334754797442) internal successors, (3048), 1882 states have internal predecessors, (3048), 420 states have call successors, (420), 26 states have call predecessors, (420), 29 states have return successors, (463), 419 states have call predecessors, (463), 419 states have call successors, (463) [2023-12-25 05:50:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3931 transitions. [2023-12-25 05:50:27,138 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3931 transitions. Word has length 122 [2023-12-25 05:50:27,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:27,139 INFO L495 AbstractCegarLoop]: Abstraction has 2326 states and 3931 transitions. [2023-12-25 05:50:27,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:27,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3931 transitions. [2023-12-25 05:50:27,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:50:27,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:27,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:27,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:27,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:27,355 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:27,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:27,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1091782058, now seen corresponding path program 1 times [2023-12-25 05:50:27,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:27,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130099105] [2023-12-25 05:50:27,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:27,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:27,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:27,357 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:27,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:50:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:27,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:27,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:27,589 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:27,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:27,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:27,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130099105] [2023-12-25 05:50:27,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130099105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:27,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:27,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:27,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189375705] [2023-12-25 05:50:27,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:27,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:27,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:27,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:27,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:27,591 INFO L87 Difference]: Start difference. First operand 2326 states and 3931 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:27,718 INFO L93 Difference]: Finished difference Result 5410 states and 9216 transitions. [2023-12-25 05:50:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:27,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2023-12-25 05:50:27,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:27,734 INFO L225 Difference]: With dead ends: 5410 [2023-12-25 05:50:27,736 INFO L226 Difference]: Without dead ends: 3542 [2023-12-25 05:50:27,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:27,744 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 97 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:27,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1020 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:27,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3542 states. [2023-12-25 05:50:27,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3542 to 3537. [2023-12-25 05:50:27,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 2908 states have (on average 1.6289546079779917) internal successors, (4737), 2914 states have internal predecessors, (4737), 599 states have call successors, (599), 26 states have call predecessors, (599), 29 states have return successors, (668), 598 states have call predecessors, (668), 598 states have call successors, (668) [2023-12-25 05:50:27,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 6004 transitions. [2023-12-25 05:50:27,886 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 6004 transitions. Word has length 123 [2023-12-25 05:50:27,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:27,886 INFO L495 AbstractCegarLoop]: Abstraction has 3537 states and 6004 transitions. [2023-12-25 05:50:27,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:27,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 6004 transitions. [2023-12-25 05:50:27,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:50:27,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:27,897 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:27,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:28,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:28,104 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:28,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2008060801, now seen corresponding path program 1 times [2023-12-25 05:50:28,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:28,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672980331] [2023-12-25 05:50:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:28,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:28,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:28,106 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:28,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:50:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:28,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:28,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:28,352 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:28,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:28,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:28,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672980331] [2023-12-25 05:50:28,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672980331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:28,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:28,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:28,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281387862] [2023-12-25 05:50:28,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:28,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:28,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:28,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:28,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:28,354 INFO L87 Difference]: Start difference. First operand 3537 states and 6004 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:28,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:28,560 INFO L93 Difference]: Finished difference Result 8358 states and 14263 transitions. [2023-12-25 05:50:28,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:28,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2023-12-25 05:50:28,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:28,587 INFO L225 Difference]: With dead ends: 8358 [2023-12-25 05:50:28,587 INFO L226 Difference]: Without dead ends: 5578 [2023-12-25 05:50:28,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:28,599 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 95 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:28,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1033 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5578 states. [2023-12-25 05:50:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5578 to 5573. [2023-12-25 05:50:28,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5573 states, 4568 states have (on average 1.6186514886164622) internal successors, (7394), 4574 states have internal predecessors, (7394), 975 states have call successors, (975), 26 states have call predecessors, (975), 29 states have return successors, (1088), 974 states have call predecessors, (1088), 974 states have call successors, (1088) [2023-12-25 05:50:28,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5573 states to 5573 states and 9457 transitions. [2023-12-25 05:50:28,909 INFO L78 Accepts]: Start accepts. Automaton has 5573 states and 9457 transitions. Word has length 124 [2023-12-25 05:50:28,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:28,909 INFO L495 AbstractCegarLoop]: Abstraction has 5573 states and 9457 transitions. [2023-12-25 05:50:28,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:28,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5573 states and 9457 transitions. [2023-12-25 05:50:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:50:28,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:28,925 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:28,933 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 (18)] Ended with exit code 0 [2023-12-25 05:50:29,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:29,131 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:29,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:29,135 INFO L85 PathProgramCache]: Analyzing trace with hash -881246318, now seen corresponding path program 1 times [2023-12-25 05:50:29,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:29,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133499441] [2023-12-25 05:50:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:29,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:29,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:29,137 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:29,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:50:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:29,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:29,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:29,367 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:29,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:29,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:29,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133499441] [2023-12-25 05:50:29,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133499441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:29,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:29,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:29,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293836351] [2023-12-25 05:50:29,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:29,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:29,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:29,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:29,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:29,371 INFO L87 Difference]: Start difference. First operand 5573 states and 9457 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:29,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:29,654 INFO L93 Difference]: Finished difference Result 13663 states and 23341 transitions. [2023-12-25 05:50:29,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:29,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2023-12-25 05:50:29,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:29,704 INFO L225 Difference]: With dead ends: 13663 [2023-12-25 05:50:29,704 INFO L226 Difference]: Without dead ends: 9228 [2023-12-25 05:50:29,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:29,723 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 93 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:29,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1026 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:29,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9228 states. [2023-12-25 05:50:30,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9228 to 9223. [2023-12-25 05:50:30,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9223 states, 7612 states have (on average 1.6167892800840777) internal successors, (12307), 7618 states have internal predecessors, (12307), 1581 states have call successors, (1581), 26 states have call predecessors, (1581), 29 states have return successors, (1772), 1580 states have call predecessors, (1772), 1580 states have call successors, (1772) [2023-12-25 05:50:30,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9223 states to 9223 states and 15660 transitions. [2023-12-25 05:50:30,188 INFO L78 Accepts]: Start accepts. Automaton has 9223 states and 15660 transitions. Word has length 125 [2023-12-25 05:50:30,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:30,188 INFO L495 AbstractCegarLoop]: Abstraction has 9223 states and 15660 transitions. [2023-12-25 05:50:30,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:30,188 INFO L276 IsEmpty]: Start isEmpty. Operand 9223 states and 15660 transitions. [2023-12-25 05:50:30,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:50:30,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:30,212 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:30,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:30,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:30,419 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:30,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:30,419 INFO L85 PathProgramCache]: Analyzing trace with hash 104002641, now seen corresponding path program 1 times [2023-12-25 05:50:30,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:30,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99096296] [2023-12-25 05:50:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:30,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:30,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:30,437 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:30,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:50:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:30,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:30,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:30,723 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:30,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:30,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:30,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99096296] [2023-12-25 05:50:30,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99096296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:30,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:30,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:30,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955464095] [2023-12-25 05:50:30,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:30,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:30,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:30,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:30,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:30,725 INFO L87 Difference]: Start difference. First operand 9223 states and 15660 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:31,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:31,302 INFO L93 Difference]: Finished difference Result 23750 states and 40509 transitions. [2023-12-25 05:50:31,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:31,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2023-12-25 05:50:31,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:31,359 INFO L225 Difference]: With dead ends: 23750 [2023-12-25 05:50:31,359 INFO L226 Difference]: Without dead ends: 16116 [2023-12-25 05:50:31,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:31,390 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 91 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:31,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1038 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:50:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16116 states. [2023-12-25 05:50:32,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16116 to 16111. [2023-12-25 05:50:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16111 states, 13297 states have (on average 1.6081822967586674) internal successors, (21384), 13303 states have internal predecessors, (21384), 2784 states have call successors, (2784), 26 states have call predecessors, (2784), 29 states have return successors, (3119), 2783 states have call predecessors, (3119), 2783 states have call successors, (3119) [2023-12-25 05:50:32,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16111 states to 16111 states and 27287 transitions. [2023-12-25 05:50:32,275 INFO L78 Accepts]: Start accepts. Automaton has 16111 states and 27287 transitions. Word has length 126 [2023-12-25 05:50:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:32,275 INFO L495 AbstractCegarLoop]: Abstraction has 16111 states and 27287 transitions. [2023-12-25 05:50:32,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:32,276 INFO L276 IsEmpty]: Start isEmpty. Operand 16111 states and 27287 transitions. [2023-12-25 05:50:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:50:32,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:32,311 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:32,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:32,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:32,517 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:32,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:32,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1624934031, now seen corresponding path program 1 times [2023-12-25 05:50:32,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:32,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050116085] [2023-12-25 05:50:32,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:32,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:32,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:32,533 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:32,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:50:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:32,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:32,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:32,830 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:32,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:32,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:32,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050116085] [2023-12-25 05:50:32,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050116085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:32,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:32,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:32,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996017308] [2023-12-25 05:50:32,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:32,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:32,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:32,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:32,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:32,832 INFO L87 Difference]: Start difference. First operand 16111 states and 27287 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:33,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:33,761 INFO L93 Difference]: Finished difference Result 42523 states and 72375 transitions. [2023-12-25 05:50:33,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:33,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2023-12-25 05:50:33,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:33,885 INFO L225 Difference]: With dead ends: 42523 [2023-12-25 05:50:33,885 INFO L226 Difference]: Without dead ends: 28642 [2023-12-25 05:50:33,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:33,932 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 89 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:33,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1023 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:33,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28642 states. [2023-12-25 05:50:35,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28642 to 28637. [2023-12-25 05:50:35,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28637 states, 23784 states have (on average 1.604397914564413) internal successors, (38159), 23790 states have internal predecessors, (38159), 4823 states have call successors, (4823), 26 states have call predecessors, (4823), 29 states have return successors, (5432), 4822 states have call predecessors, (5432), 4822 states have call successors, (5432) [2023-12-25 05:50:35,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28637 states to 28637 states and 48414 transitions. [2023-12-25 05:50:35,423 INFO L78 Accepts]: Start accepts. Automaton has 28637 states and 48414 transitions. Word has length 127 [2023-12-25 05:50:35,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:35,423 INFO L495 AbstractCegarLoop]: Abstraction has 28637 states and 48414 transitions. [2023-12-25 05:50:35,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:35,423 INFO L276 IsEmpty]: Start isEmpty. Operand 28637 states and 48414 transitions. [2023-12-25 05:50:35,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:50:35,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:35,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:35,477 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:35,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:35,675 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:35,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:35,675 INFO L85 PathProgramCache]: Analyzing trace with hash 10340143, now seen corresponding path program 1 times [2023-12-25 05:50:35,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:35,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17730534] [2023-12-25 05:50:35,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:35,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:35,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:35,677 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:35,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:50:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:35,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:35,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:35,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:35,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:35,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17730534] [2023-12-25 05:50:35,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17730534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:35,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:35,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:35,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035246919] [2023-12-25 05:50:35,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:35,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:35,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:35,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:35,908 INFO L87 Difference]: Start difference. First operand 28637 states and 48414 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:37,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:37,718 INFO L93 Difference]: Finished difference Result 77900 states and 132217 transitions. [2023-12-25 05:50:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:37,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2023-12-25 05:50:37,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:37,916 INFO L225 Difference]: With dead ends: 77900 [2023-12-25 05:50:37,916 INFO L226 Difference]: Without dead ends: 52264 [2023-12-25 05:50:37,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:37,966 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 87 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:37,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1023 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:50:38,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52264 states. [2023-12-25 05:50:40,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52264 to 52259. [2023-12-25 05:50:40,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52259 states, 43691 states have (on average 1.5992080748895654) internal successors, (69871), 43697 states have internal predecessors, (69871), 8538 states have call successors, (8538), 26 states have call predecessors, (8538), 29 states have return successors, (9679), 8537 states have call predecessors, (9679), 8537 states have call successors, (9679) [2023-12-25 05:50:40,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52259 states to 52259 states and 88088 transitions. [2023-12-25 05:50:40,626 INFO L78 Accepts]: Start accepts. Automaton has 52259 states and 88088 transitions. Word has length 128 [2023-12-25 05:50:40,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:40,626 INFO L495 AbstractCegarLoop]: Abstraction has 52259 states and 88088 transitions. [2023-12-25 05:50:40,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:40,627 INFO L276 IsEmpty]: Start isEmpty. Operand 52259 states and 88088 transitions. [2023-12-25 05:50:40,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 05:50:40,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:40,666 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:50:40,674 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 (22)] Ended with exit code 0 [2023-12-25 05:50:40,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:40,872 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:40,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:40,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1725710639, now seen corresponding path program 1 times [2023-12-25 05:50:40,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:40,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806230816] [2023-12-25 05:50:40,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:40,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:40,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:40,874 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:40,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:50:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:41,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:50:41,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:50:41,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:41,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:41,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806230816] [2023-12-25 05:50:41,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806230816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:41,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:41,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:50:41,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43525139] [2023-12-25 05:50:41,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:41,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:50:41,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:41,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:50:41,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:41,500 INFO L87 Difference]: Start difference. First operand 52259 states and 88088 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:44,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:44,546 INFO L93 Difference]: Finished difference Result 97418 states and 164582 transitions. [2023-12-25 05:50:44,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:50:44,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2023-12-25 05:50:44,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:44,915 INFO L225 Difference]: With dead ends: 97418 [2023-12-25 05:50:44,916 INFO L226 Difference]: Without dead ends: 97213 [2023-12-25 05:50:44,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:50:44,962 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 85 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:44,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1023 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97213 states. [2023-12-25 05:50:49,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97213 to 97208. [2023-12-25 05:50:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97208 states, 81841 states have (on average 1.5924903165894846) internal successors, (130331), 81847 states have internal predecessors, (130331), 15337 states have call successors, (15337), 26 states have call predecessors, (15337), 29 states have return successors, (17524), 15336 states have call predecessors, (17524), 15336 states have call successors, (17524) [2023-12-25 05:50:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97208 states to 97208 states and 163192 transitions. [2023-12-25 05:50:50,079 INFO L78 Accepts]: Start accepts. Automaton has 97208 states and 163192 transitions. Word has length 129 [2023-12-25 05:50:50,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:50,079 INFO L495 AbstractCegarLoop]: Abstraction has 97208 states and 163192 transitions. [2023-12-25 05:50:50,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:50:50,079 INFO L276 IsEmpty]: Start isEmpty. Operand 97208 states and 163192 transitions. [2023-12-25 05:50:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 05:50:50,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:50,126 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:50,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:50,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:50,332 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:50,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:50,333 INFO L85 PathProgramCache]: Analyzing trace with hash 42955216, now seen corresponding path program 1 times [2023-12-25 05:50:50,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:50,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936687413] [2023-12-25 05:50:50,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:50,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:50,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:50,334 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:50:50,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:50:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:50,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:50:50,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:50:50,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:50:50,995 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 05:50:50,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:50,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936687413] [2023-12-25 05:50:50,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936687413] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:50:50,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:50:50,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:50:50,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434609493] [2023-12-25 05:50:50,996 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:50:50,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:50:50,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:50,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:50:50,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:50:50,997 INFO L87 Difference]: Start difference. First operand 97208 states and 163192 transitions. Second operand has 16 states, 16 states have (on average 10.1875) internal successors, (163), 14 states have internal predecessors, (163), 4 states have call successors, (30), 6 states have call predecessors, (30), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2023-12-25 05:51:03,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:51:03,490 INFO L93 Difference]: Finished difference Result 285851 states and 486553 transitions. [2023-12-25 05:51:03,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:51:03,491 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.1875) internal successors, (163), 14 states have internal predecessors, (163), 4 states have call successors, (30), 6 states have call predecessors, (30), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) Word has length 130 [2023-12-25 05:51:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:51:05,255 INFO L225 Difference]: With dead ends: 285851 [2023-12-25 05:51:05,256 INFO L226 Difference]: Without dead ends: 285653 [2023-12-25 05:51:05,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:51:05,396 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1891 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 4436 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 4905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 4436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:51:05,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 2612 Invalid, 4905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 4436 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 05:51:05,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285653 states. [2023-12-25 05:51:16,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285653 to 194409. [2023-12-25 05:51:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194409 states, 163677 states have (on average 1.592490087183905) internal successors, (260654), 163688 states have internal predecessors, (260654), 30672 states have call successors, (30672), 51 states have call predecessors, (30672), 59 states have return successors, (39417), 30673 states have call predecessors, (39417), 30670 states have call successors, (39417) [2023-12-25 05:51:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194409 states to 194409 states and 330743 transitions. [2023-12-25 05:51:18,548 INFO L78 Accepts]: Start accepts. Automaton has 194409 states and 330743 transitions. Word has length 130 [2023-12-25 05:51:18,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:51:18,552 INFO L495 AbstractCegarLoop]: Abstraction has 194409 states and 330743 transitions. [2023-12-25 05:51:18,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.1875) internal successors, (163), 14 states have internal predecessors, (163), 4 states have call successors, (30), 6 states have call predecessors, (30), 9 states have return successors, (27), 6 states have call predecessors, (27), 4 states have call successors, (27) [2023-12-25 05:51:18,552 INFO L276 IsEmpty]: Start isEmpty. Operand 194409 states and 330743 transitions. [2023-12-25 05:51:18,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:51:18,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:51:18,756 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:51:18,763 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 (24)] Ended with exit code 0 [2023-12-25 05:51:18,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:51:18,964 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:51:18,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:51:18,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1059059716, now seen corresponding path program 1 times [2023-12-25 05:51:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:51:18,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109664814] [2023-12-25 05:51:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:51:18,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:51:18,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:51:18,990 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:51:19,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:51:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:51:19,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:51:19,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:51:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:51:19,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:51:19,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:51:19,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109664814] [2023-12-25 05:51:19,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109664814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:51:19,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:51:19,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:51:19,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784514261] [2023-12-25 05:51:19,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:51:19,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:51:19,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:51:19,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:51:19,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:51:19,693 INFO L87 Difference]: Start difference. First operand 194409 states and 330743 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:51:27,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:51:27,955 INFO L93 Difference]: Finished difference Result 195031 states and 331672 transitions. [2023-12-25 05:51:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:51:27,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 131 [2023-12-25 05:51:27,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:51:28,864 INFO L225 Difference]: With dead ends: 195031 [2023-12-25 05:51:28,865 INFO L226 Difference]: Without dead ends: 194475 [2023-12-25 05:51:28,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:51:28,966 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 740 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:51:28,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 3239 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:51:29,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194475 states. [2023-12-25 05:51:39,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194475 to 194471. [2023-12-25 05:51:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194471 states, 163722 states have (on average 1.5924310721833352) internal successors, (260716), 163735 states have internal predecessors, (260716), 30688 states have call successors, (30688), 53 states have call predecessors, (30688), 60 states have return successors, (39438), 30688 states have call predecessors, (39438), 30686 states have call successors, (39438) [2023-12-25 05:51:41,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194471 states to 194471 states and 330842 transitions. [2023-12-25 05:51:41,279 INFO L78 Accepts]: Start accepts. Automaton has 194471 states and 330842 transitions. Word has length 131 [2023-12-25 05:51:41,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:51:41,279 INFO L495 AbstractCegarLoop]: Abstraction has 194471 states and 330842 transitions. [2023-12-25 05:51:41,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:51:41,279 INFO L276 IsEmpty]: Start isEmpty. Operand 194471 states and 330842 transitions. [2023-12-25 05:51:41,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:51:41,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:51:41,407 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-25 05:51:41,412 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 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:51:41,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:51:41,613 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:51:41,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:51:41,613 INFO L85 PathProgramCache]: Analyzing trace with hash 409200392, now seen corresponding path program 1 times [2023-12-25 05:51:41,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:51:41,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095897129] [2023-12-25 05:51:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:51:41,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:51:41,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:51:41,615 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:51:41,648 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 (26)] Waiting until timeout for monitored process [2023-12-25 05:51:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:51:41,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:51:41,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:51:41,842 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:51:41,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:51:41,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:51:41,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095897129] [2023-12-25 05:51:41,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095897129] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:51:41,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:51:41,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:51:41,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730949688] [2023-12-25 05:51:41,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:51:41,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:51:41,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:51:41,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:51:41,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:51:41,845 INFO L87 Difference]: Start difference. First operand 194471 states and 330842 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:51:50,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:51:50,225 INFO L93 Difference]: Finished difference Result 289118 states and 491947 transitions. [2023-12-25 05:51:50,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:51:50,226 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), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2023-12-25 05:51:50,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:51:51,244 INFO L225 Difference]: With dead ends: 289118 [2023-12-25 05:51:51,244 INFO L226 Difference]: Without dead ends: 191882 [2023-12-25 05:51:51,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:51:51,471 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 10 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2001 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 [2023-12-25 05:51:51,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2001 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:51:51,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191882 states. [2023-12-25 05:52:01,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191882 to 191880. [2023-12-25 05:52:02,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191880 states, 161584 states have (on average 1.5932765620358451) internal successors, (257448), 161484 states have internal predecessors, (257448), 30239 states have call successors, (30239), 52 states have call predecessors, (30239), 56 states have return successors, (37783), 30349 states have call predecessors, (37783), 30237 states have call successors, (37783) [2023-12-25 05:52:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191880 states to 191880 states and 325470 transitions. [2023-12-25 05:52:03,013 INFO L78 Accepts]: Start accepts. Automaton has 191880 states and 325470 transitions. Word has length 131 [2023-12-25 05:52:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:03,013 INFO L495 AbstractCegarLoop]: Abstraction has 191880 states and 325470 transitions. [2023-12-25 05:52:03,013 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), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:52:03,013 INFO L276 IsEmpty]: Start isEmpty. Operand 191880 states and 325470 transitions. [2023-12-25 05:52:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 05:52:03,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:03,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:52:03,505 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 (26)] Ended with exit code 0 [2023-12-25 05:52:03,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:03,705 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:03,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:03,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1674356314, now seen corresponding path program 1 times [2023-12-25 05:52:03,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:03,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424042347] [2023-12-25 05:52:03,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:03,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:03,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:03,708 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:52:03,708 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 (27)] Waiting until timeout for monitored process [2023-12-25 05:52:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:03,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 05:52:03,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:52:04,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:04,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:04,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424042347] [2023-12-25 05:52:04,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424042347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:04,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:04,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 05:52:04,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143782114] [2023-12-25 05:52:04,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:04,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:52:04,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:04,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:52:04,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:52:04,378 INFO L87 Difference]: Start difference. First operand 191880 states and 325470 transitions. Second operand has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 6 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-25 05:52:22,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:22,961 INFO L93 Difference]: Finished difference Result 383107 states and 660618 transitions. [2023-12-25 05:52:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 05:52:22,961 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 6 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 134 [2023-12-25 05:52:22,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:25,406 INFO L225 Difference]: With dead ends: 383107 [2023-12-25 05:52:25,407 INFO L226 Difference]: Without dead ends: 382675 [2023-12-25 05:52:25,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2023-12-25 05:52:25,584 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 1720 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 5238 SdHoareTripleChecker+Invalid, 2679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:52:25,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 5238 Invalid, 2679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-25 05:52:26,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382675 states. [2023-12-25 05:52:47,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382675 to 382371. [2023-12-25 05:52:48,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382371 states, 322068 states have (on average 1.5940795111591342) internal successors, (513402), 321686 states have internal predecessors, (513402), 60153 states have call successors, (60153), 135 states have call predecessors, (60153), 149 states have return successors, (84865), 60567 states have call predecessors, (84865), 60147 states have call successors, (84865) [2023-12-25 05:52:51,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382371 states to 382371 states and 658420 transitions. [2023-12-25 05:52:51,332 INFO L78 Accepts]: Start accepts. Automaton has 382371 states and 658420 transitions. Word has length 134 [2023-12-25 05:52:51,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:51,332 INFO L495 AbstractCegarLoop]: Abstraction has 382371 states and 658420 transitions. [2023-12-25 05:52:51,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 6 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-25 05:52:51,333 INFO L276 IsEmpty]: Start isEmpty. Operand 382371 states and 658420 transitions. [2023-12-25 05:52:51,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:52:51,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:51,636 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:52:51,643 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 (27)] Ended with exit code 0 [2023-12-25 05:52:51,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:51,842 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:51,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash -398519622, now seen corresponding path program 1 times [2023-12-25 05:52:51,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:51,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333502708] [2023-12-25 05:52:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:51,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:51,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:51,844 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:52:51,877 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 (28)] Waiting until timeout for monitored process [2023-12-25 05:52:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:52,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:52:52,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:52:52,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:52,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:52,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333502708] [2023-12-25 05:52:52,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333502708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:52,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:52,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:52:52,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971647058] [2023-12-25 05:52:52,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:52,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:52:52,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:52,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:52:52,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:52:52,147 INFO L87 Difference]: Start difference. First operand 382371 states and 658420 transitions. Second operand has 9 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 6 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:53:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:53:08,296 INFO L93 Difference]: Finished difference Result 383693 states and 660360 transitions. [2023-12-25 05:53:08,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:53:08,297 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 6 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 135 [2023-12-25 05:53:08,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:53:10,714 INFO L225 Difference]: With dead ends: 383693 [2023-12-25 05:53:10,714 INFO L226 Difference]: Without dead ends: 382377 [2023-12-25 05:53:10,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:53:10,881 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 311 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:53:10,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 3746 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:53:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382377 states. [2023-12-25 05:53:32,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382377 to 382375. [2023-12-25 05:53:33,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382375 states, 322070 states have (on average 1.5940758220262676) internal successors, (513404), 321692 states have internal predecessors, (513404), 60151 states have call successors, (60151), 135 states have call predecessors, (60151), 153 states have return successors, (84871), 60565 states have call predecessors, (84871), 60145 states have call successors, (84871) [2023-12-25 05:53:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382375 states to 382375 states and 658426 transitions. [2023-12-25 05:53:36,816 INFO L78 Accepts]: Start accepts. Automaton has 382375 states and 658426 transitions. Word has length 135 [2023-12-25 05:53:36,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:53:36,816 INFO L495 AbstractCegarLoop]: Abstraction has 382375 states and 658426 transitions. [2023-12-25 05:53:36,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 6 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:53:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 382375 states and 658426 transitions. [2023-12-25 05:53:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:53:37,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:53:37,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:53:37,130 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 (28)] Ended with exit code 0 [2023-12-25 05:53:37,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:53:37,330 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:53:37,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:53:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1748113106, now seen corresponding path program 1 times [2023-12-25 05:53:37,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:53:37,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858274034] [2023-12-25 05:53:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:53:37,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:53:37,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:53:37,336 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:53:37,370 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 (29)] Waiting until timeout for monitored process [2023-12-25 05:53:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:53:37,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:53:37,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:53:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:53:37,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:53:37,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:53:37,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858274034] [2023-12-25 05:53:37,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858274034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:53:37,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:53:37,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 05:53:37,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828379272] [2023-12-25 05:53:37,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:53:37,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 05:53:37,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:53:37,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 05:53:37,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:53:37,789 INFO L87 Difference]: Start difference. First operand 382375 states and 658426 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 8 states have internal predecessors, (95), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:53:54,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:53:54,545 INFO L93 Difference]: Finished difference Result 383701 states and 660376 transitions. [2023-12-25 05:53:54,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 05:53:54,546 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 8 states have internal predecessors, (95), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 135 [2023-12-25 05:53:54,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:53:56,739 INFO L225 Difference]: With dead ends: 383701 [2023-12-25 05:53:56,740 INFO L226 Difference]: Without dead ends: 382389 [2023-12-25 05:53:56,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:53:56,921 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 817 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:53:56,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 3449 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:53:57,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382389 states. [2023-12-25 05:54:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382389 to 382387. [2023-12-25 05:54:19,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382387 states, 322076 states have (on average 1.5940647549025695) internal successors, (513410), 321704 states have internal predecessors, (513410), 60151 states have call successors, (60151), 135 states have call predecessors, (60151), 159 states have return successors, (84885), 60565 states have call predecessors, (84885), 60145 states have call successors, (84885) [2023-12-25 05:54:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382387 states to 382387 states and 658446 transitions. [2023-12-25 05:54:23,559 INFO L78 Accepts]: Start accepts. Automaton has 382387 states and 658446 transitions. Word has length 135 [2023-12-25 05:54:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:23,560 INFO L495 AbstractCegarLoop]: Abstraction has 382387 states and 658446 transitions. [2023-12-25 05:54:23,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 8 states have internal predecessors, (95), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:54:23,560 INFO L276 IsEmpty]: Start isEmpty. Operand 382387 states and 658446 transitions. [2023-12-25 05:54:23,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:54:23,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:23,824 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:54:23,835 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 (29)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:24,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:24,029 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:24,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:24,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1545505673, now seen corresponding path program 1 times [2023-12-25 05:54:24,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:24,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49985414] [2023-12-25 05:54:24,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:24,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:54:24,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:24,032 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:54:24,033 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 (30)] Waiting until timeout for monitored process [2023-12-25 05:54:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:54:24,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 05:54:24,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:54:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:54:24,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:54:24,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:54:24,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49985414] [2023-12-25 05:54:24,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49985414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:54:24,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:54:24,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 05:54:24,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299777627] [2023-12-25 05:54:24,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:54:24,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:54:24,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:54:24,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:54:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:54:24,690 INFO L87 Difference]: Start difference. First operand 382387 states and 658446 transitions. Second operand has 14 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 6 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-25 05:54:59,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:54:59,057 INFO L93 Difference]: Finished difference Result 760480 states and 1331082 transitions. [2023-12-25 05:54:59,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 05:54:59,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 6 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 135 [2023-12-25 05:54:59,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:55:03,105 INFO L225 Difference]: With dead ends: 760480 [2023-12-25 05:55:03,105 INFO L226 Difference]: Without dead ends: 759290 [2023-12-25 05:55:03,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2023-12-25 05:55:03,497 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 1383 mSDsluCounter, 4523 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 5017 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:55:03,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 5017 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 05:55:04,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759290 states.