/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:47:13,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:47:14,007 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 05:47:14,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:47:14,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:47:14,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:47:14,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:47:14,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:47:14,033 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:47:14,036 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:47:14,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:47:14,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:47:14,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:47:14,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:47:14,038 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:47:14,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:47:14,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:47:14,038 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:47:14,039 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:47:14,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:47:14,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:47:14,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:47:14,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:47:14,040 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:47:14,040 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:47:14,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:47:14,041 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:47:14,041 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:47:14,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:47:14,041 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:47:14,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:47:14,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:47:14,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:47:14,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:47:14,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:47:14,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:47:14,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:47:14,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:47:14,043 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:47:14,043 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:47:14,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:47:14,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:47:14,044 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:47:14,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:47:14,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:47:14,044 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:47:14,045 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:47:14,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:47:14,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:47:14,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:47:14,253 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:47:14,253 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:47:14,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c [2023-12-25 05:47:15,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:47:15,608 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:47:15,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c [2023-12-25 05:47:15,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7980c7431/80c24a0073ab4981954990e0ac2745b9/FLAG65ac740d9 [2023-12-25 05:47:15,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7980c7431/80c24a0073ab4981954990e0ac2745b9 [2023-12-25 05:47:15,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:47:15,640 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:47:15,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:47:15,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:47:15,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:47:15,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:47:15" (1/1) ... [2023-12-25 05:47:15,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24834237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:15, skipping insertion in model container [2023-12-25 05:47:15,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:47:15" (1/1) ... [2023-12-25 05:47:15,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:47:16,099 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c[42138,42151] [2023-12-25 05:47:16,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:47:16,163 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:47:16,195 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:47:16,292 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c[42138,42151] [2023-12-25 05:47:16,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:47:16,347 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:47:16,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2023-12-25 05:47:16,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1128] [2023-12-25 05:47:16,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1435] [2023-12-25 05:47:16,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1801] [2023-12-25 05:47:16,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1836] [2023-12-25 05:47:16,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1845] [2023-12-25 05:47:16,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2061] [2023-12-25 05:47:16,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [2436] [2023-12-25 05:47:16,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2494] [2023-12-25 05:47:16,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2893] [2023-12-25 05:47:16,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3028] [2023-12-25 05:47:16,449 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c[42138,42151] [2023-12-25 05:47:16,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:47:16,503 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:47:16,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16 WrapperNode [2023-12-25 05:47:16,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:47:16,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:47:16,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:47:16,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:47:16,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,594 INFO L138 Inliner]: procedures = 134, calls = 211, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 984 [2023-12-25 05:47:16,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:47:16,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:47:16,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:47:16,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:47:16,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,629 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,663 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 05:47:16,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,675 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,695 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:47:16,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:47:16,703 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:47:16,703 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:47:16,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (1/1) ... [2023-12-25 05:47:16,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:47:16,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:47:16,730 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 05:47:16,763 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 05:47:16,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:47:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:47:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:47:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:47:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:47:16,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:47:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:47:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:47:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:47:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:47:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:47:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:47:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:47:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:47:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:47:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:47:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:47:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:47:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:47:16,791 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:47:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:47:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:47:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:47:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:47:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:47:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:47:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:47:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:47:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:47:16,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:47:16,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:47:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:47:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:47:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:47:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:47:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:47:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:47:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:47:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:47:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:47:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:47:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:47:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:47:16,793 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:47:16,793 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:47:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:47:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:47:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:47:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:47:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:47:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:47:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:47:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:47:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:47:16,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:47:16,972 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:47:16,974 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:47:17,727 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:47:17,800 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:47:17,800 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:47:17,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:47:17 BoogieIcfgContainer [2023-12-25 05:47:17,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:47:17,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:47:17,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:47:17,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:47:17,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:47:15" (1/3) ... [2023-12-25 05:47:17,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328ac088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:47:17, skipping insertion in model container [2023-12-25 05:47:17,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:16" (2/3) ... [2023-12-25 05:47:17,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328ac088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:47:17, skipping insertion in model container [2023-12-25 05:47:17,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:47:17" (3/3) ... [2023-12-25 05:47:17,808 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product31.cil.c [2023-12-25 05:47:17,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:47:17,821 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:47:17,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:47:17,877 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;@29606b81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:47:17,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:47:17,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 348 states, 258 states have (on average 1.558139534883721) internal successors, (402), 264 states have internal predecessors, (402), 64 states have call successors, (64), 24 states have call predecessors, (64), 24 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-25 05:47:17,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:47:17,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:17,897 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:17,897 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:17,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:17,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1141609031, now seen corresponding path program 1 times [2023-12-25 05:47:17,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:17,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130601793] [2023-12-25 05:47:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:17,913 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 05:47:17,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:17,916 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 05:47:17,948 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 05:47:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:18,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:47:18,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:18,302 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-25 05:47:18,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:18,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:18,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130601793] [2023-12-25 05:47:18,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130601793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:18,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:18,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:47:18,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237610496] [2023-12-25 05:47:18,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:18,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:47:18,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:47:18,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:47:18,339 INFO L87 Difference]: Start difference. First operand has 348 states, 258 states have (on average 1.558139534883721) internal successors, (402), 264 states have internal predecessors, (402), 64 states have call successors, (64), 24 states have call predecessors, (64), 24 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:18,437 INFO L93 Difference]: Finished difference Result 550 states and 823 transitions. [2023-12-25 05:47:18,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:47:18,441 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 123 [2023-12-25 05:47:18,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:18,450 INFO L225 Difference]: With dead ends: 550 [2023-12-25 05:47:18,450 INFO L226 Difference]: Without dead ends: 344 [2023-12-25 05:47:18,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 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 05:47:18,463 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:18,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 507 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:18,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-12-25 05:47:18,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-12-25 05:47:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 256 states have (on average 1.54296875) internal successors, (395), 260 states have internal predecessors, (395), 64 states have call successors, (64), 24 states have call predecessors, (64), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-25 05:47:18,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 520 transitions. [2023-12-25 05:47:18,535 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 520 transitions. Word has length 123 [2023-12-25 05:47:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:18,536 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 520 transitions. [2023-12-25 05:47:18,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:18,536 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 520 transitions. [2023-12-25 05:47:18,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:47:18,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:18,545 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:18,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:47:18,761 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 05:47:18,762 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:18,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:18,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1368309298, now seen corresponding path program 1 times [2023-12-25 05:47:18,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:18,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832545852] [2023-12-25 05:47:18,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:18,763 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 05:47:18,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:18,772 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 05:47:18,774 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 05:47:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:19,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:47:19,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:47:19,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:19,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:19,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832545852] [2023-12-25 05:47:19,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832545852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:19,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:19,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:19,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528421025] [2023-12-25 05:47:19,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:19,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:19,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:19,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:19,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:19,130 INFO L87 Difference]: Start difference. First operand 344 states and 520 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:19,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:19,235 INFO L93 Difference]: Finished difference Result 683 states and 1034 transitions. [2023-12-25 05:47:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:19,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2023-12-25 05:47:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:19,238 INFO L225 Difference]: With dead ends: 683 [2023-12-25 05:47:19,238 INFO L226 Difference]: Without dead ends: 346 [2023-12-25 05:47:19,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 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 05:47:19,240 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 8 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:19,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1969 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-12-25 05:47:19,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2023-12-25 05:47:19,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 257 states have (on average 1.5408560311284047) internal successors, (396), 262 states have internal predecessors, (396), 64 states have call successors, (64), 24 states have call predecessors, (64), 24 states have return successors, (63), 61 states have call predecessors, (63), 61 states have call successors, (63) [2023-12-25 05:47:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 523 transitions. [2023-12-25 05:47:19,252 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 523 transitions. Word has length 124 [2023-12-25 05:47:19,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:19,253 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 523 transitions. [2023-12-25 05:47:19,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:19,253 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 523 transitions. [2023-12-25 05:47:19,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:47:19,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:19,255 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:19,276 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 05:47:19,461 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 05:47:19,461 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:19,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:19,462 INFO L85 PathProgramCache]: Analyzing trace with hash -309836266, now seen corresponding path program 1 times [2023-12-25 05:47:19,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:19,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999410226] [2023-12-25 05:47:19,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:19,463 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 05:47:19,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:19,464 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 05:47:19,469 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 05:47:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:19,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:47:19,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:47:19,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:19,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:19,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999410226] [2023-12-25 05:47:19,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999410226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:19,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:19,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:19,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089695850] [2023-12-25 05:47:19,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:19,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:19,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:19,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:19,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:19,734 INFO L87 Difference]: Start difference. First operand 346 states and 523 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:19,857 INFO L93 Difference]: Finished difference Result 685 states and 1038 transitions. [2023-12-25 05:47:19,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:19,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 125 [2023-12-25 05:47:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:19,860 INFO L225 Difference]: With dead ends: 685 [2023-12-25 05:47:19,860 INFO L226 Difference]: Without dead ends: 348 [2023-12-25 05:47:19,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 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 05:47:19,863 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 8 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1955 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:19,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1955 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:19,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-25 05:47:19,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2023-12-25 05:47:19,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 258 states have (on average 1.5387596899224807) internal successors, (397), 264 states have internal predecessors, (397), 64 states have call successors, (64), 24 states have call predecessors, (64), 25 states have return successors, (67), 61 states have call predecessors, (67), 61 states have call successors, (67) [2023-12-25 05:47:19,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 528 transitions. [2023-12-25 05:47:19,880 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 528 transitions. Word has length 125 [2023-12-25 05:47:19,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:19,880 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 528 transitions. [2023-12-25 05:47:19,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:19,881 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 528 transitions. [2023-12-25 05:47:19,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:47:19,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:19,882 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:19,888 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 05:47:20,088 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 05:47:20,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:20,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:20,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1207627758, now seen corresponding path program 1 times [2023-12-25 05:47:20,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:20,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527351460] [2023-12-25 05:47:20,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:20,092 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 05:47:20,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:20,093 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 05:47:20,097 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 05:47:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:20,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:47:20,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:47:20,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:20,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:20,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527351460] [2023-12-25 05:47:20,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527351460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:20,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:20,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:20,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488297381] [2023-12-25 05:47:20,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:20,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:20,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:20,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:20,372 INFO L87 Difference]: Start difference. First operand 348 states and 528 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:20,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:20,464 INFO L93 Difference]: Finished difference Result 677 states and 1028 transitions. [2023-12-25 05:47:20,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:20,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2023-12-25 05:47:20,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:20,467 INFO L225 Difference]: With dead ends: 677 [2023-12-25 05:47:20,467 INFO L226 Difference]: Without dead ends: 348 [2023-12-25 05:47:20,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 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 05:47:20,468 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 8 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:20,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1969 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-25 05:47:20,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2023-12-25 05:47:20,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 258 states have (on average 1.5387596899224807) internal successors, (397), 264 states have internal predecessors, (397), 64 states have call successors, (64), 24 states have call predecessors, (64), 25 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2023-12-25 05:47:20,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 527 transitions. [2023-12-25 05:47:20,519 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 527 transitions. Word has length 126 [2023-12-25 05:47:20,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:20,520 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 527 transitions. [2023-12-25 05:47:20,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 527 transitions. [2023-12-25 05:47:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:47:20,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:20,522 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:20,531 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 05:47:20,728 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 05:47:20,729 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:20,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:20,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1022828120, now seen corresponding path program 2 times [2023-12-25 05:47:20,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:20,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705861490] [2023-12-25 05:47:20,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:47:20,731 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 05:47:20,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:20,746 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 05:47:20,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:47:20,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:47:20,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:47:20,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:20,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 05:47:20,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:20,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:20,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705861490] [2023-12-25 05:47:20,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705861490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:20,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:20,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:20,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043373327] [2023-12-25 05:47:20,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:20,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:20,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:20,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:20,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:20,985 INFO L87 Difference]: Start difference. First operand 348 states and 527 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:21,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:21,029 INFO L93 Difference]: Finished difference Result 549 states and 813 transitions. [2023-12-25 05:47:21,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:21,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 127 [2023-12-25 05:47:21,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:21,032 INFO L225 Difference]: With dead ends: 549 [2023-12-25 05:47:21,032 INFO L226 Difference]: Without dead ends: 350 [2023-12-25 05:47:21,033 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 05:47:21,033 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 0 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:21,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1007 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-12-25 05:47:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2023-12-25 05:47:21,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 260 states have (on average 1.5346153846153847) internal successors, (399), 266 states have internal predecessors, (399), 64 states have call successors, (64), 24 states have call predecessors, (64), 25 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2023-12-25 05:47:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 529 transitions. [2023-12-25 05:47:21,052 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 529 transitions. Word has length 127 [2023-12-25 05:47:21,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:21,053 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 529 transitions. [2023-12-25 05:47:21,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 529 transitions. [2023-12-25 05:47:21,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:47:21,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:21,057 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:21,062 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 05:47:21,261 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 05:47:21,262 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:21,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash -705805125, now seen corresponding path program 1 times [2023-12-25 05:47:21,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:21,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524391438] [2023-12-25 05:47:21,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:21,264 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 05:47:21,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:21,275 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 05:47:21,308 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 05:47:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:21,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:47:21,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:21,543 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-25 05:47:21,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:21,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:21,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524391438] [2023-12-25 05:47:21,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524391438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:21,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:21,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:21,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286689435] [2023-12-25 05:47:21,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:21,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:21,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:21,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:21,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:21,547 INFO L87 Difference]: Start difference. First operand 350 states and 529 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:21,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:21,655 INFO L93 Difference]: Finished difference Result 683 states and 1035 transitions. [2023-12-25 05:47:21,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:21,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 132 [2023-12-25 05:47:21,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:21,658 INFO L225 Difference]: With dead ends: 683 [2023-12-25 05:47:21,658 INFO L226 Difference]: Without dead ends: 352 [2023-12-25 05:47:21,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 05:47:21,660 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 6 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1971 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 05:47:21,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1971 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-25 05:47:21,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2023-12-25 05:47:21,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 261 states have (on average 1.5325670498084292) internal successors, (400), 268 states have internal predecessors, (400), 64 states have call successors, (64), 24 states have call predecessors, (64), 26 states have return successors, (68), 61 states have call predecessors, (68), 61 states have call successors, (68) [2023-12-25 05:47:21,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 532 transitions. [2023-12-25 05:47:21,671 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 532 transitions. Word has length 132 [2023-12-25 05:47:21,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:21,671 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 532 transitions. [2023-12-25 05:47:21,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:21,672 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 532 transitions. [2023-12-25 05:47:21,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-25 05:47:21,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:21,674 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:21,696 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 05:47:21,879 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 05:47:21,879 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:21,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:21,880 INFO L85 PathProgramCache]: Analyzing trace with hash 684359686, now seen corresponding path program 1 times [2023-12-25 05:47:21,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:21,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077826449] [2023-12-25 05:47:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:21,881 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 05:47:21,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:21,882 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 05:47:21,884 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 05:47:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:22,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:47:22,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:22,171 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:47:22,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:22,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:22,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077826449] [2023-12-25 05:47:22,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077826449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:22,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:22,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:22,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140505359] [2023-12-25 05:47:22,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:22,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:22,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:22,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:22,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:22,174 INFO L87 Difference]: Start difference. First operand 352 states and 532 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:22,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:22,274 INFO L93 Difference]: Finished difference Result 681 states and 1030 transitions. [2023-12-25 05:47:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:22,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2023-12-25 05:47:22,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:22,276 INFO L225 Difference]: With dead ends: 681 [2023-12-25 05:47:22,276 INFO L226 Difference]: Without dead ends: 352 [2023-12-25 05:47:22,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:22,278 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 8 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:22,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1956 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:22,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-25 05:47:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2023-12-25 05:47:22,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 261 states have (on average 1.5325670498084292) internal successors, (400), 268 states have internal predecessors, (400), 64 states have call successors, (64), 24 states have call predecessors, (64), 26 states have return successors, (67), 61 states have call predecessors, (67), 61 states have call successors, (67) [2023-12-25 05:47:22,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 531 transitions. [2023-12-25 05:47:22,287 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 531 transitions. Word has length 133 [2023-12-25 05:47:22,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:22,287 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 531 transitions. [2023-12-25 05:47:22,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:22,288 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 531 transitions. [2023-12-25 05:47:22,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 05:47:22,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:22,289 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:22,309 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 05:47:22,495 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 05:47:22,496 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:22,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:22,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1616956430, now seen corresponding path program 2 times [2023-12-25 05:47:22,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:22,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747630779] [2023-12-25 05:47:22,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:47:22,497 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 05:47:22,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:22,514 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 05:47:22,520 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 05:47:22,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 05:47:22,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:47:22,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:47:22,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:47:22,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:47:23,208 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 05:47:23,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:23,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747630779] [2023-12-25 05:47:23,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747630779] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:47:23,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:47:23,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:47:23,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125743862] [2023-12-25 05:47:23,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:47:23,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:47:23,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:23,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:47:23,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:47:23,210 INFO L87 Difference]: Start difference. First operand 352 states and 531 transitions. Second operand has 16 states, 16 states have (on average 9.125) internal successors, (146), 14 states have internal predecessors, (146), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:47:26,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:26,641 INFO L93 Difference]: Finished difference Result 1181 states and 1799 transitions. [2023-12-25 05:47:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:47:26,642 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 14 states have internal predecessors, (146), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) Word has length 134 [2023-12-25 05:47:26,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:26,647 INFO L225 Difference]: With dead ends: 1181 [2023-12-25 05:47:26,647 INFO L226 Difference]: Without dead ends: 987 [2023-12-25 05:47:26,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:47:26,648 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 2056 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 4904 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 5534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 4904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:26,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 2423 Invalid, 5534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 4904 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:47:26,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2023-12-25 05:47:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 703. [2023-12-25 05:47:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 525 states have (on average 1.5333333333333334) internal successors, (805), 535 states have internal predecessors, (805), 124 states have call successors, (124), 48 states have call predecessors, (124), 53 states have return successors, (135), 123 states have call predecessors, (135), 120 states have call successors, (135) [2023-12-25 05:47:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1064 transitions. [2023-12-25 05:47:26,677 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1064 transitions. Word has length 134 [2023-12-25 05:47:26,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:26,677 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1064 transitions. [2023-12-25 05:47:26,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 14 states have internal predecessors, (146), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:47:26,677 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1064 transitions. [2023-12-25 05:47:26,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:47:26,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:26,679 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:26,685 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 05:47:26,885 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 05:47:26,885 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:26,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1701289046, now seen corresponding path program 1 times [2023-12-25 05:47:26,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:26,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004577534] [2023-12-25 05:47:26,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:26,886 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 05:47:26,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:26,888 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 05:47:26,890 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 05:47:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:27,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:47:27,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:27,233 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:47:27,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:27,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:27,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004577534] [2023-12-25 05:47:27,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004577534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:27,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:27,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:27,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432350865] [2023-12-25 05:47:27,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:27,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:27,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:27,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:27,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:27,236 INFO L87 Difference]: Start difference. First operand 703 states and 1064 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:27,364 INFO L93 Difference]: Finished difference Result 1373 states and 2086 transitions. [2023-12-25 05:47:27,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:27,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2023-12-25 05:47:27,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:27,369 INFO L225 Difference]: With dead ends: 1373 [2023-12-25 05:47:27,369 INFO L226 Difference]: Without dead ends: 709 [2023-12-25 05:47:27,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:27,374 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 6 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:27,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1958 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:27,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2023-12-25 05:47:27,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 707. [2023-12-25 05:47:27,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 527 states have (on average 1.5313092979127134) internal successors, (807), 539 states have internal predecessors, (807), 124 states have call successors, (124), 48 states have call predecessors, (124), 55 states have return successors, (140), 123 states have call predecessors, (140), 120 states have call successors, (140) [2023-12-25 05:47:27,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1071 transitions. [2023-12-25 05:47:27,402 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1071 transitions. Word has length 135 [2023-12-25 05:47:27,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:27,403 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 1071 transitions. [2023-12-25 05:47:27,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1071 transitions. [2023-12-25 05:47:27,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 05:47:27,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:27,405 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:27,429 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 (10)] Ended with exit code 0 [2023-12-25 05:47:27,612 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 05:47:27,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:27,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:27,616 INFO L85 PathProgramCache]: Analyzing trace with hash 295220209, now seen corresponding path program 1 times [2023-12-25 05:47:27,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:27,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227691686] [2023-12-25 05:47:27,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:27,617 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 05:47:27,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:27,618 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 05:47:27,622 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 05:47:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:27,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:27,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:27,862 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:27,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:27,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227691686] [2023-12-25 05:47:27,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227691686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:27,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:27,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:27,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078229844] [2023-12-25 05:47:27,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:27,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:27,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:27,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:27,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:27,864 INFO L87 Difference]: Start difference. First operand 707 states and 1071 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:27,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:27,929 INFO L93 Difference]: Finished difference Result 1473 states and 2266 transitions. [2023-12-25 05:47:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:27,929 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2023-12-25 05:47:27,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:27,936 INFO L225 Difference]: With dead ends: 1473 [2023-12-25 05:47:27,936 INFO L226 Difference]: Without dead ends: 811 [2023-12-25 05:47:27,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:27,938 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 102 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 986 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 05:47:27,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 986 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2023-12-25 05:47:27,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 801. [2023-12-25 05:47:27,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 599 states have (on average 1.5475792988313857) internal successors, (927), 611 states have internal predecessors, (927), 146 states have call successors, (146), 48 states have call predecessors, (146), 55 states have return successors, (170), 145 states have call predecessors, (170), 142 states have call successors, (170) [2023-12-25 05:47:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1243 transitions. [2023-12-25 05:47:27,967 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1243 transitions. Word has length 136 [2023-12-25 05:47:27,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:27,967 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1243 transitions. [2023-12-25 05:47:27,968 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, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:27,968 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1243 transitions. [2023-12-25 05:47:27,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:47:27,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:27,971 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:27,977 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 05:47:28,176 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 05:47:28,177 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:28,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:28,178 INFO L85 PathProgramCache]: Analyzing trace with hash 151258238, now seen corresponding path program 1 times [2023-12-25 05:47:28,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:28,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770171255] [2023-12-25 05:47:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:28,179 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 05:47:28,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:28,180 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 05:47:28,181 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 05:47:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:28,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:47:28,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:28,470 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:28,470 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:47:28,540 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:28,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:28,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770171255] [2023-12-25 05:47:28,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770171255] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:47:28,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:47:28,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:47:28,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064197338] [2023-12-25 05:47:28,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:47:28,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:47:28,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:28,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:47:28,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:28,542 INFO L87 Difference]: Start difference. First operand 801 states and 1243 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:47:28,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:28,779 INFO L93 Difference]: Finished difference Result 1859 states and 3005 transitions. [2023-12-25 05:47:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:47:28,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 137 [2023-12-25 05:47:28,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:28,788 INFO L225 Difference]: With dead ends: 1859 [2023-12-25 05:47:28,789 INFO L226 Difference]: Without dead ends: 1461 [2023-12-25 05:47:28,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 268 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 05:47:28,792 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 352 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:28,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 2216 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:47:28,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2023-12-25 05:47:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1431. [2023-12-25 05:47:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1101 states have (on average 1.6139872842870118) internal successors, (1777), 1113 states have internal predecessors, (1777), 274 states have call successors, (274), 48 states have call predecessors, (274), 55 states have return successors, (338), 273 states have call predecessors, (338), 270 states have call successors, (338) [2023-12-25 05:47:28,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2389 transitions. [2023-12-25 05:47:28,857 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2389 transitions. Word has length 137 [2023-12-25 05:47:28,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:28,857 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 2389 transitions. [2023-12-25 05:47:28,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:47:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2389 transitions. [2023-12-25 05:47:28,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:47:28,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:28,863 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:28,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-25 05:47:29,070 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 05:47:29,070 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:29,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:29,071 INFO L85 PathProgramCache]: Analyzing trace with hash -495345125, now seen corresponding path program 1 times [2023-12-25 05:47:29,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:29,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496478645] [2023-12-25 05:47:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:29,071 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 05:47:29,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:29,072 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 05:47:29,108 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 05:47:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:29,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:29,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:29,312 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:29,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:29,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:29,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496478645] [2023-12-25 05:47:29,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496478645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:29,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:29,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:29,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992883636] [2023-12-25 05:47:29,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:29,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:29,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:29,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:29,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:29,314 INFO L87 Difference]: Start difference. First operand 1431 states and 2389 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:29,425 INFO L93 Difference]: Finished difference Result 3383 states and 5740 transitions. [2023-12-25 05:47:29,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:29,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-12-25 05:47:29,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:29,435 INFO L225 Difference]: With dead ends: 3383 [2023-12-25 05:47:29,435 INFO L226 Difference]: Without dead ends: 2065 [2023-12-25 05:47:29,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 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 05:47:29,440 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 100 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:29,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1017 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:29,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2023-12-25 05:47:29,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 2055. [2023-12-25 05:47:29,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 1597 states have (on average 1.6286787726988103) internal successors, (2601), 1609 states have internal predecessors, (2601), 402 states have call successors, (402), 48 states have call predecessors, (402), 55 states have return successors, (506), 401 states have call predecessors, (506), 398 states have call successors, (506) [2023-12-25 05:47:29,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 3509 transitions. [2023-12-25 05:47:29,574 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 3509 transitions. Word has length 143 [2023-12-25 05:47:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:29,575 INFO L495 AbstractCegarLoop]: Abstraction has 2055 states and 3509 transitions. [2023-12-25 05:47:29,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:29,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 3509 transitions. [2023-12-25 05:47:29,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 05:47:29,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:29,586 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:29,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-25 05:47:29,794 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 05:47:29,795 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:29,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:29,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1567941553, now seen corresponding path program 1 times [2023-12-25 05:47:29,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:29,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088111749] [2023-12-25 05:47:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:29,796 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 05:47:29,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:29,797 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 05:47:29,798 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 05:47:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:30,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:30,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:30,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:30,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:30,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088111749] [2023-12-25 05:47:30,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088111749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:30,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:30,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:30,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716252939] [2023-12-25 05:47:30,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:30,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:30,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:30,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:30,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:30,077 INFO L87 Difference]: Start difference. First operand 2055 states and 3509 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:30,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:30,212 INFO L93 Difference]: Finished difference Result 4881 states and 8396 transitions. [2023-12-25 05:47:30,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:30,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2023-12-25 05:47:30,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:30,225 INFO L225 Difference]: With dead ends: 4881 [2023-12-25 05:47:30,225 INFO L226 Difference]: Without dead ends: 3039 [2023-12-25 05:47:30,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 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 05:47:30,232 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 98 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:30,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1003 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:30,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2023-12-25 05:47:30,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 3029. [2023-12-25 05:47:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3029 states, 2381 states have (on average 1.638387232255355) internal successors, (3901), 2393 states have internal predecessors, (3901), 592 states have call successors, (592), 48 states have call predecessors, (592), 55 states have return successors, (728), 591 states have call predecessors, (728), 588 states have call successors, (728) [2023-12-25 05:47:30,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 5221 transitions. [2023-12-25 05:47:30,355 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 5221 transitions. Word has length 144 [2023-12-25 05:47:30,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:30,355 INFO L495 AbstractCegarLoop]: Abstraction has 3029 states and 5221 transitions. [2023-12-25 05:47:30,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 5221 transitions. [2023-12-25 05:47:30,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:47:30,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:30,369 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:30,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-25 05:47:30,577 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 05:47:30,577 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:30,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash -258262339, now seen corresponding path program 1 times [2023-12-25 05:47:30,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:30,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522232505] [2023-12-25 05:47:30,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:30,578 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 05:47:30,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:30,579 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 05:47:30,614 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 05:47:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:30,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:30,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:30,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:30,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:30,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522232505] [2023-12-25 05:47:30,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522232505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:30,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:30,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:30,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760145382] [2023-12-25 05:47:30,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:30,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:30,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:30,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:30,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:30,825 INFO L87 Difference]: Start difference. First operand 3029 states and 5221 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:30,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:30,987 INFO L93 Difference]: Finished difference Result 7085 states and 12330 transitions. [2023-12-25 05:47:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:30,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2023-12-25 05:47:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:31,006 INFO L225 Difference]: With dead ends: 7085 [2023-12-25 05:47:31,006 INFO L226 Difference]: Without dead ends: 4509 [2023-12-25 05:47:31,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 05:47:31,013 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 96 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:31,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 998 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:31,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2023-12-25 05:47:31,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4499. [2023-12-25 05:47:31,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 3605 states have (on average 1.6463245492371705) internal successors, (5935), 3617 states have internal predecessors, (5935), 838 states have call successors, (838), 48 states have call predecessors, (838), 55 states have return successors, (1058), 837 states have call predecessors, (1058), 834 states have call successors, (1058) [2023-12-25 05:47:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 7831 transitions. [2023-12-25 05:47:31,171 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 7831 transitions. Word has length 145 [2023-12-25 05:47:31,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:31,171 INFO L495 AbstractCegarLoop]: Abstraction has 4499 states and 7831 transitions. [2023-12-25 05:47:31,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:31,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 7831 transitions. [2023-12-25 05:47:31,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-25 05:47:31,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:31,188 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:31,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-25 05:47:31,394 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 05:47:31,394 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:31,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:31,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2055461842, now seen corresponding path program 1 times [2023-12-25 05:47:31,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:31,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262340089] [2023-12-25 05:47:31,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:31,395 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 05:47:31,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:31,396 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 05:47:31,398 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 05:47:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:31,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:31,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:31,622 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:31,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:31,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262340089] [2023-12-25 05:47:31,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262340089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:31,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:31,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:31,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568058181] [2023-12-25 05:47:31,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:31,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:31,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:31,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:31,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:31,634 INFO L87 Difference]: Start difference. First operand 4499 states and 7831 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:31,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:31,821 INFO L93 Difference]: Finished difference Result 10505 states and 18456 transitions. [2023-12-25 05:47:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:31,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2023-12-25 05:47:31,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:31,870 INFO L225 Difference]: With dead ends: 10505 [2023-12-25 05:47:31,870 INFO L226 Difference]: Without dead ends: 6853 [2023-12-25 05:47:31,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 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 05:47:31,884 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 94 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:31,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 998 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:31,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2023-12-25 05:47:32,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 6843. [2023-12-25 05:47:32,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6843 states, 5591 states have (on average 1.6517617599713825) internal successors, (9235), 5603 states have internal predecessors, (9235), 1196 states have call successors, (1196), 48 states have call predecessors, (1196), 55 states have return successors, (1556), 1195 states have call predecessors, (1556), 1192 states have call successors, (1556) [2023-12-25 05:47:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6843 states to 6843 states and 11987 transitions. [2023-12-25 05:47:32,191 INFO L78 Accepts]: Start accepts. Automaton has 6843 states and 11987 transitions. Word has length 146 [2023-12-25 05:47:32,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:32,191 INFO L495 AbstractCegarLoop]: Abstraction has 6843 states and 11987 transitions. [2023-12-25 05:47:32,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:32,192 INFO L276 IsEmpty]: Start isEmpty. Operand 6843 states and 11987 transitions. [2023-12-25 05:47:32,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:47:32,216 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:32,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:32,248 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 (16)] Ended with exit code 0 [2023-12-25 05:47:32,422 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 05:47:32,423 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:32,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:32,423 INFO L85 PathProgramCache]: Analyzing trace with hash -730986119, now seen corresponding path program 1 times [2023-12-25 05:47:32,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:32,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120420323] [2023-12-25 05:47:32,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:32,424 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 05:47:32,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:32,427 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 05:47:32,462 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 05:47:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:32,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:32,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:32,685 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:32,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:32,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120420323] [2023-12-25 05:47:32,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120420323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:32,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:32,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:32,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670562310] [2023-12-25 05:47:32,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:32,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:32,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:32,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:32,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:32,687 INFO L87 Difference]: Start difference. First operand 6843 states and 11987 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:33,005 INFO L93 Difference]: Finished difference Result 16215 states and 28608 transitions. [2023-12-25 05:47:33,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:33,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2023-12-25 05:47:33,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:33,040 INFO L225 Difference]: With dead ends: 16215 [2023-12-25 05:47:33,040 INFO L226 Difference]: Without dead ends: 10793 [2023-12-25 05:47:33,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 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 05:47:33,056 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 92 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1009 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 05:47:33,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1009 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:33,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10793 states. [2023-12-25 05:47:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10793 to 10783. [2023-12-25 05:47:33,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10783 states, 8779 states have (on average 1.6422143752135778) internal successors, (14417), 8791 states have internal predecessors, (14417), 1948 states have call successors, (1948), 48 states have call predecessors, (1948), 55 states have return successors, (2552), 1947 states have call predecessors, (2552), 1944 states have call successors, (2552) [2023-12-25 05:47:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10783 states to 10783 states and 18917 transitions. [2023-12-25 05:47:33,515 INFO L78 Accepts]: Start accepts. Automaton has 10783 states and 18917 transitions. Word has length 147 [2023-12-25 05:47:33,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:33,515 INFO L495 AbstractCegarLoop]: Abstraction has 10783 states and 18917 transitions. [2023-12-25 05:47:33,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 10783 states and 18917 transitions. [2023-12-25 05:47:33,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-25 05:47:33,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:33,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:33,557 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 05:47:33,755 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 05:47:33,755 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:33,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:33,755 INFO L85 PathProgramCache]: Analyzing trace with hash -290000618, now seen corresponding path program 1 times [2023-12-25 05:47:33,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:33,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211057038] [2023-12-25 05:47:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:33,756 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 05:47:33,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:33,758 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 05:47:33,792 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 05:47:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:34,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:34,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:34,071 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:34,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:34,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:34,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211057038] [2023-12-25 05:47:34,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211057038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:34,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:34,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:34,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135574763] [2023-12-25 05:47:34,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:34,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:34,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:34,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:34,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:34,074 INFO L87 Difference]: Start difference. First operand 10783 states and 18917 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:34,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:34,544 INFO L93 Difference]: Finished difference Result 26489 states and 46684 transitions. [2023-12-25 05:47:34,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:34,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2023-12-25 05:47:34,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:34,604 INFO L225 Difference]: With dead ends: 26489 [2023-12-25 05:47:34,604 INFO L226 Difference]: Without dead ends: 17859 [2023-12-25 05:47:34,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 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 05:47:34,651 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 90 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:34,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1001 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:34,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17859 states. [2023-12-25 05:47:35,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17859 to 17849. [2023-12-25 05:47:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17849 states, 14633 states have (on average 1.6407435249094513) internal successors, (24009), 14645 states have internal predecessors, (24009), 3160 states have call successors, (3160), 48 states have call predecessors, (3160), 55 states have return successors, (4064), 3159 states have call predecessors, (4064), 3156 states have call successors, (4064) [2023-12-25 05:47:35,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17849 states to 17849 states and 31233 transitions. [2023-12-25 05:47:35,547 INFO L78 Accepts]: Start accepts. Automaton has 17849 states and 31233 transitions. Word has length 148 [2023-12-25 05:47:35,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:35,548 INFO L495 AbstractCegarLoop]: Abstraction has 17849 states and 31233 transitions. [2023-12-25 05:47:35,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:35,548 INFO L276 IsEmpty]: Start isEmpty. Operand 17849 states and 31233 transitions. [2023-12-25 05:47:35,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:47:35,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:35,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:35,607 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 05:47:35,808 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 05:47:35,808 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:35,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:35,809 INFO L85 PathProgramCache]: Analyzing trace with hash -921053337, now seen corresponding path program 1 times [2023-12-25 05:47:35,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:35,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554004332] [2023-12-25 05:47:35,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:35,809 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 05:47:35,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:35,811 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 05:47:35,871 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 05:47:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:36,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:36,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:36,094 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:36,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:36,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:36,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554004332] [2023-12-25 05:47:36,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554004332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:36,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:36,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:36,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605445706] [2023-12-25 05:47:36,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:36,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:36,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:36,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:36,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:36,096 INFO L87 Difference]: Start difference. First operand 17849 states and 31233 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:37,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:37,074 INFO L93 Difference]: Finished difference Result 46033 states and 80952 transitions. [2023-12-25 05:47:37,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:37,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2023-12-25 05:47:37,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:37,197 INFO L225 Difference]: With dead ends: 46033 [2023-12-25 05:47:37,198 INFO L226 Difference]: Without dead ends: 31203 [2023-12-25 05:47:37,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:37,237 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 88 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:37,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1010 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:37,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31203 states. [2023-12-25 05:47:38,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31203 to 31193. [2023-12-25 05:47:38,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31193 states, 25571 states have (on average 1.6319658988698134) internal successors, (41731), 25583 states have internal predecessors, (41731), 5566 states have call successors, (5566), 48 states have call predecessors, (5566), 55 states have return successors, (7176), 5565 states have call predecessors, (7176), 5562 states have call successors, (7176) [2023-12-25 05:47:38,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31193 states to 31193 states and 54473 transitions. [2023-12-25 05:47:38,823 INFO L78 Accepts]: Start accepts. Automaton has 31193 states and 54473 transitions. Word has length 149 [2023-12-25 05:47:38,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:38,824 INFO L495 AbstractCegarLoop]: Abstraction has 31193 states and 54473 transitions. [2023-12-25 05:47:38,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:38,824 INFO L276 IsEmpty]: Start isEmpty. Operand 31193 states and 54473 transitions. [2023-12-25 05:47:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-25 05:47:38,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:38,904 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:38,925 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 05:47:39,111 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 05:47:39,111 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:39,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:39,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1956230569, now seen corresponding path program 1 times [2023-12-25 05:47:39,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:39,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320283227] [2023-12-25 05:47:39,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:39,113 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 05:47:39,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:39,114 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 05:47:39,150 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 05:47:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:39,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:39,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:39,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:39,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:39,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320283227] [2023-12-25 05:47:39,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320283227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:39,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:39,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:39,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868688901] [2023-12-25 05:47:39,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:39,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:39,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:39,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:39,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:39,384 INFO L87 Difference]: Start difference. First operand 31193 states and 54473 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:41,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:41,452 INFO L93 Difference]: Finished difference Result 82367 states and 144682 transitions. [2023-12-25 05:47:41,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:41,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-12-25 05:47:41,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:41,660 INFO L225 Difference]: With dead ends: 82367 [2023-12-25 05:47:41,661 INFO L226 Difference]: Without dead ends: 55433 [2023-12-25 05:47:41,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 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 05:47:41,731 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 86 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:41,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1001 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:41,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55433 states. [2023-12-25 05:47:43,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55433 to 55423. [2023-12-25 05:47:43,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55423 states, 45723 states have (on average 1.6284801959626447) internal successors, (74459), 45735 states have internal predecessors, (74459), 9644 states have call successors, (9644), 48 states have call predecessors, (9644), 55 states have return successors, (12608), 9643 states have call predecessors, (12608), 9640 states have call successors, (12608) [2023-12-25 05:47:44,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55423 states to 55423 states and 96711 transitions. [2023-12-25 05:47:44,152 INFO L78 Accepts]: Start accepts. Automaton has 55423 states and 96711 transitions. Word has length 150 [2023-12-25 05:47:44,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:44,152 INFO L495 AbstractCegarLoop]: Abstraction has 55423 states and 96711 transitions. [2023-12-25 05:47:44,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:44,152 INFO L276 IsEmpty]: Start isEmpty. Operand 55423 states and 96711 transitions. [2023-12-25 05:47:44,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:47:44,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:44,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:44,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-25 05:47:44,468 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 05:47:44,469 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:44,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:44,470 INFO L85 PathProgramCache]: Analyzing trace with hash 173288649, now seen corresponding path program 1 times [2023-12-25 05:47:44,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:44,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624585551] [2023-12-25 05:47:44,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:44,470 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 05:47:44,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:44,471 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 05:47:44,513 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 05:47:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:45,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:45,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:45,106 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:45,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:45,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:45,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624585551] [2023-12-25 05:47:45,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624585551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:45,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:45,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:45,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261018490] [2023-12-25 05:47:45,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:45,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:45,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:45,109 INFO L87 Difference]: Start difference. First operand 55423 states and 96711 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:48,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:48,444 INFO L93 Difference]: Finished difference Result 150751 states and 263226 transitions. [2023-12-25 05:47:48,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:48,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2023-12-25 05:47:48,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:48,964 INFO L225 Difference]: With dead ends: 150751 [2023-12-25 05:47:48,965 INFO L226 Difference]: Without dead ends: 101081 [2023-12-25 05:47:49,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 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 05:47:49,092 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 84 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1007 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 05:47:49,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1007 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:49,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101081 states. [2023-12-25 05:47:53,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101081 to 101071. [2023-12-25 05:47:53,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101071 states, 83941 states have (on average 1.623604674712) internal successors, (136287), 83953 states have internal predecessors, (136287), 17074 states have call successors, (17074), 48 states have call predecessors, (17074), 55 states have return successors, (21634), 17073 states have call predecessors, (21634), 17070 states have call successors, (21634) [2023-12-25 05:47:54,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101071 states to 101071 states and 174995 transitions. [2023-12-25 05:47:54,139 INFO L78 Accepts]: Start accepts. Automaton has 101071 states and 174995 transitions. Word has length 151 [2023-12-25 05:47:54,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:54,140 INFO L495 AbstractCegarLoop]: Abstraction has 101071 states and 174995 transitions. [2023-12-25 05:47:54,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand 101071 states and 174995 transitions. [2023-12-25 05:47:54,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-25 05:47:54,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:54,678 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:54,686 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 05:47:54,887 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 05:47:54,887 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:54,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:54,888 INFO L85 PathProgramCache]: Analyzing trace with hash -396839177, now seen corresponding path program 1 times [2023-12-25 05:47:54,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:54,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862274221] [2023-12-25 05:47:54,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:54,888 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 05:47:54,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:54,889 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 05:47:54,891 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 05:47:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:55,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:55,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:55,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:55,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:55,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862274221] [2023-12-25 05:47:55,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862274221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:55,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:55,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:55,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392253876] [2023-12-25 05:47:55,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:55,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:55,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:55,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:55,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:55,189 INFO L87 Difference]: Start difference. First operand 101071 states and 174995 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:48:00,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:00,476 INFO L93 Difference]: Finished difference Result 188239 states and 326921 transitions. [2023-12-25 05:48:00,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:48:00,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2023-12-25 05:48:00,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:01,398 INFO L225 Difference]: With dead ends: 188239 [2023-12-25 05:48:01,398 INFO L226 Difference]: Without dead ends: 187841 [2023-12-25 05:48:01,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:48:01,498 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 82 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:01,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1001 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:48:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187841 states. [2023-12-25 05:48:09,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187841 to 187831. [2023-12-25 05:48:09,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187831 states, 157103 states have (on average 1.6172129112747688) internal successors, (254069), 157115 states have internal predecessors, (254069), 30672 states have call successors, (30672), 48 states have call predecessors, (30672), 55 states have return successors, (39416), 30671 states have call predecessors, (39416), 30668 states have call successors, (39416) [2023-12-25 05:48:10,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187831 states to 187831 states and 324157 transitions. [2023-12-25 05:48:10,985 INFO L78 Accepts]: Start accepts. Automaton has 187831 states and 324157 transitions. Word has length 152 [2023-12-25 05:48:10,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:10,985 INFO L495 AbstractCegarLoop]: Abstraction has 187831 states and 324157 transitions. [2023-12-25 05:48:10,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:48:10,985 INFO L276 IsEmpty]: Start isEmpty. Operand 187831 states and 324157 transitions. [2023-12-25 05:48:11,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:48:11,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:11,691 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:11,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:11,898 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 05:48:11,899 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:11,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:11,899 INFO L85 PathProgramCache]: Analyzing trace with hash 966598408, now seen corresponding path program 1 times [2023-12-25 05:48:11,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:11,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005570836] [2023-12-25 05:48:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:11,900 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 05:48:11,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:11,901 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 05:48:11,902 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 05:48:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:12,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:48:12,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:48:12,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:48:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:48:12,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:12,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005570836] [2023-12-25 05:48:12,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005570836] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:48:12,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:48:12,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:48:12,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031124419] [2023-12-25 05:48:12,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:48:12,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:48:12,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:12,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:48:12,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:48:12,590 INFO L87 Difference]: Start difference. First operand 187831 states and 324157 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:48:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:23,479 INFO L93 Difference]: Finished difference Result 276225 states and 476916 transitions. [2023-12-25 05:48:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:48:23,480 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) Word has length 153 [2023-12-25 05:48:23,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:25,139 INFO L225 Difference]: With dead ends: 276225 [2023-12-25 05:48:25,139 INFO L226 Difference]: Without dead ends: 276029 [2023-12-25 05:48:25,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:48:25,280 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1144 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 4309 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 4553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 4309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:25,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 2305 Invalid, 4553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 4309 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 05:48:25,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276029 states. [2023-12-25 05:48:35,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276029 to 187833. [2023-12-25 05:48:35,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187833 states, 157105 states have (on average 1.617205053944814) internal successors, (254071), 157116 states have internal predecessors, (254071), 30672 states have call successors, (30672), 48 states have call predecessors, (30672), 55 states have return successors, (39416), 30672 states have call predecessors, (39416), 30668 states have call successors, (39416) [2023-12-25 05:48:36,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187833 states to 187833 states and 324159 transitions. [2023-12-25 05:48:36,988 INFO L78 Accepts]: Start accepts. Automaton has 187833 states and 324159 transitions. Word has length 153 [2023-12-25 05:48:36,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:36,989 INFO L495 AbstractCegarLoop]: Abstraction has 187833 states and 324159 transitions. [2023-12-25 05:48:36,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:48:36,989 INFO L276 IsEmpty]: Start isEmpty. Operand 187833 states and 324159 transitions. [2023-12-25 05:48:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:48:37,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:37,691 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:37,697 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 05:48:37,897 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 05:48:37,897 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:37,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:37,898 INFO L85 PathProgramCache]: Analyzing trace with hash 66644666, now seen corresponding path program 1 times [2023-12-25 05:48:37,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:37,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699638295] [2023-12-25 05:48:37,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:37,898 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 05:48:37,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:37,899 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 05:48:37,901 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 05:48:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:38,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:48:38,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:48:38,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:38,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:38,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699638295] [2023-12-25 05:48:38,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699638295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:38,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:38,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:48:38,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763892671] [2023-12-25 05:48:38,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:38,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:48:38,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:38,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:48:38,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:48:38,168 INFO L87 Difference]: Start difference. First operand 187833 states and 324159 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:48:45,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:45,140 INFO L93 Difference]: Finished difference Result 279277 states and 482038 transitions. [2023-12-25 05:48:45,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:48:45,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2023-12-25 05:48:45,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:46,054 INFO L225 Difference]: With dead ends: 279277 [2023-12-25 05:48:46,054 INFO L226 Difference]: Without dead ends: 185358 [2023-12-25 05:48:46,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:48:46,257 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 10 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1957 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 05:48:46,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1957 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:48:46,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185358 states. [2023-12-25 05:48:54,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185358 to 185352. [2023-12-25 05:48:54,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185352 states, 155076 states have (on average 1.6180260001547628) internal successors, (250917), 154974 states have internal predecessors, (250917), 30223 states have call successors, (30223), 48 states have call predecessors, (30223), 52 states have return successors, (37759), 30333 states have call predecessors, (37759), 30219 states have call successors, (37759) [2023-12-25 05:48:55,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185352 states to 185352 states and 318899 transitions. [2023-12-25 05:48:55,894 INFO L78 Accepts]: Start accepts. Automaton has 185352 states and 318899 transitions. Word has length 153 [2023-12-25 05:48:55,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:55,894 INFO L495 AbstractCegarLoop]: Abstraction has 185352 states and 318899 transitions. [2023-12-25 05:48:55,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:48:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand 185352 states and 318899 transitions. [2023-12-25 05:48:56,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-25 05:48:56,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:56,496 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:56,501 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 05:48:56,702 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 05:48:56,702 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:56,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:56,703 INFO L85 PathProgramCache]: Analyzing trace with hash 869746088, now seen corresponding path program 1 times [2023-12-25 05:48:56,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:56,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331943327] [2023-12-25 05:48:56,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:56,704 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 05:48:56,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:56,705 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 05:48:56,705 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 05:48:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:56,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:48:56,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:57,094 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 05:48:57,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:57,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:57,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331943327] [2023-12-25 05:48:57,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331943327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:57,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:57,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:48:57,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046768125] [2023-12-25 05:48:57,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:57,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:48:57,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:57,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:48:57,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:48:57,098 INFO L87 Difference]: Start difference. First operand 185352 states and 318899 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-25 05:49:04,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:04,290 INFO L93 Difference]: Finished difference Result 185952 states and 319789 transitions. [2023-12-25 05:49:04,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:49:04,291 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 154 [2023-12-25 05:49:04,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:05,530 INFO L225 Difference]: With dead ends: 185952 [2023-12-25 05:49:05,530 INFO L226 Difference]: Without dead ends: 185466 [2023-12-25 05:49:05,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 146 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 05:49:05,617 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 711 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:05,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 3171 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:49:05,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185466 states. [2023-12-25 05:49:15,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185466 to 185462. [2023-12-25 05:49:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185462 states, 155149 states have (on average 1.617896344804027) internal successors, (251015), 155050 states have internal predecessors, (251015), 30259 states have call successors, (30259), 50 states have call predecessors, (30259), 53 states have return successors, (37799), 30369 states have call predecessors, (37799), 30255 states have call successors, (37799) [2023-12-25 05:49:16,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185462 states to 185462 states and 319073 transitions. [2023-12-25 05:49:16,534 INFO L78 Accepts]: Start accepts. Automaton has 185462 states and 319073 transitions. Word has length 154 [2023-12-25 05:49:16,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:16,534 INFO L495 AbstractCegarLoop]: Abstraction has 185462 states and 319073 transitions. [2023-12-25 05:49:16,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-25 05:49:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 185462 states and 319073 transitions. [2023-12-25 05:49:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 05:49:17,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:17,253 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:17,266 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 05:49:17,462 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 05:49:17,463 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:17,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:17,463 INFO L85 PathProgramCache]: Analyzing trace with hash 682576574, now seen corresponding path program 1 times [2023-12-25 05:49:17,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:17,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009096237] [2023-12-25 05:49:17,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:17,466 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 05:49:17,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:17,467 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 05:49:17,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:49:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:17,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 05:49:17,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:49:18,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:18,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:18,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009096237] [2023-12-25 05:49:18,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009096237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:18,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:18,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 05:49:18,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445978911] [2023-12-25 05:49:18,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:18,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:49:18,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:18,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:49:18,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:49:18,163 INFO L87 Difference]: Start difference. First operand 185462 states and 319073 transitions. Second operand has 14 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 6 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-25 05:49:34,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:34,967 INFO L93 Difference]: Finished difference Result 370461 states and 648067 transitions. [2023-12-25 05:49:34,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 05:49:34,968 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 6 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 157 [2023-12-25 05:49:34,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:37,622 INFO L225 Difference]: With dead ends: 370461 [2023-12-25 05:49:37,622 INFO L226 Difference]: Without dead ends: 369989 [2023-12-25 05:49:37,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 144 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 05:49:37,819 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1417 mSDsluCounter, 5365 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 5962 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:37,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 5962 Invalid, 2250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [399 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 05:49:38,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369989 states. [2023-12-25 05:49:59,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369989 to 369665. [2023-12-25 05:50:00,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369665 states, 309312 states have (on average 1.6185986964618249) internal successors, (500652), 308931 states have internal predecessors, (500652), 60209 states have call successors, (60209), 130 states have call predecessors, (60209), 143 states have return successors, (84915), 60627 states have call predecessors, (84915), 60201 states have call successors, (84915) [2023-12-25 05:50:02,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369665 states to 369665 states and 645776 transitions. [2023-12-25 05:50:02,535 INFO L78 Accepts]: Start accepts. Automaton has 369665 states and 645776 transitions. Word has length 157 [2023-12-25 05:50:02,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:02,535 INFO L495 AbstractCegarLoop]: Abstraction has 369665 states and 645776 transitions. [2023-12-25 05:50:02,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 6 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-25 05:50:02,536 INFO L276 IsEmpty]: Start isEmpty. Operand 369665 states and 645776 transitions. [2023-12-25 05:50:03,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-25 05:50:03,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:03,564 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:03,572 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 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:03,770 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 05:50:03,770 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:03,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:03,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1879325619, now seen corresponding path program 1 times [2023-12-25 05:50:03,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:03,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991333942] [2023-12-25 05:50:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:03,771 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 05:50:03,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:03,773 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 05:50:03,775 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 05:50:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:04,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:50:04,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:04,037 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-25 05:50:04,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:04,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:04,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991333942] [2023-12-25 05:50:04,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991333942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:04,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:04,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:04,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568636236] [2023-12-25 05:50:04,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:04,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:04,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:04,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:04,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:04,039 INFO L87 Difference]: Start difference. First operand 369665 states and 645776 transitions. Second operand has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:50:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:19,296 INFO L93 Difference]: Finished difference Result 370499 states and 646968 transitions. [2023-12-25 05:50:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:19,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 158 [2023-12-25 05:50:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:21,817 INFO L225 Difference]: With dead ends: 370499 [2023-12-25 05:50:21,817 INFO L226 Difference]: Without dead ends: 369495 [2023-12-25 05:50:21,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 154 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 05:50:21,990 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 6 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:21,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1985 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:22,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369495 states. [2023-12-25 05:50:43,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369495 to 369493. [2023-12-25 05:50:44,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369493 states, 309193 states have (on average 1.6186653643517155) internal successors, (500480), 308808 states have internal predecessors, (500480), 60157 states have call successors, (60157), 128 states have call predecessors, (60157), 142 states have return successors, (84857), 60576 states have call predecessors, (84857), 60149 states have call successors, (84857) [2023-12-25 05:50:46,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369493 states to 369493 states and 645494 transitions. [2023-12-25 05:50:46,250 INFO L78 Accepts]: Start accepts. Automaton has 369493 states and 645494 transitions. Word has length 158 [2023-12-25 05:50:46,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:46,251 INFO L495 AbstractCegarLoop]: Abstraction has 369493 states and 645494 transitions. [2023-12-25 05:50:46,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:50:46,251 INFO L276 IsEmpty]: Start isEmpty. Operand 369493 states and 645494 transitions. [2023-12-25 05:50:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-25 05:50:47,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:47,228 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:47,238 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 (27)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:47,432 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 05:50:47,433 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:47,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:47,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1341680917, now seen corresponding path program 1 times [2023-12-25 05:50:47,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:47,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219047620] [2023-12-25 05:50:47,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:47,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:50:47,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:47,435 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 05:50:47,435 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 (28)] Waiting until timeout for monitored process [2023-12-25 05:50:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:47,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 05:50:47,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:48,041 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:50:48,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:48,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:48,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219047620] [2023-12-25 05:50:48,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219047620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:48,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:48,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 05:50:48,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112284523] [2023-12-25 05:50:48,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:48,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:50:48,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:48,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:50:48,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:50:48,043 INFO L87 Difference]: Start difference. First operand 369493 states and 645494 transitions. Second operand has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 6 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-25 05:51:22,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:51:22,085 INFO L93 Difference]: Finished difference Result 735306 states and 1306027 transitions. [2023-12-25 05:51:22,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 05:51:22,086 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 6 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 158 [2023-12-25 05:51:22,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:51:27,763 INFO L225 Difference]: With dead ends: 735306 [2023-12-25 05:51:27,763 INFO L226 Difference]: Without dead ends: 734036 [2023-12-25 05:51:28,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2023-12-25 05:51:28,742 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 1555 mSDsluCounter, 4199 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 4680 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:51:28,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 4680 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 05:51:29,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734036 states. [2023-12-25 05:52:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734036 to 733400. [2023-12-25 05:52:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733400 states, 613853 states have (on average 1.6198959685787966) internal successors, (994378), 612875 states have internal predecessors, (994378), 119232 states have call successors, (119232), 282 states have call predecessors, (119232), 314 states have return successors, (188452), 120286 states have call predecessors, (188452), 119216 states have call successors, (188452)