/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_spec6_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:52:24,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:52:24,933 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 05:52:24,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:52:24,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:52:24,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:52:24,953 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:52:24,953 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:52:24,953 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:52:24,954 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:52:24,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:52:24,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:52:24,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:52:24,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:52:24,955 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:52:24,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:52:24,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:52:24,956 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:52:24,956 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:52:24,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:52:24,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:52:24,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:52:24,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:52:24,957 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:52:24,958 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:52:24,958 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:52:24,958 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:52:24,958 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:52:24,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:52:24,959 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:52:24,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:52:24,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:52:24,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:52:24,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:52:24,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:52:24,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:52:24,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:52:24,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:52:24,961 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:52:24,961 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:52:24,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:52:24,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:52:24,962 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:52:24,962 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:52:24,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:52:24,962 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:52:24,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:52:25,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:52:25,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:52:25,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:52:25,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:52:25,171 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:52:25,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2023-12-25 05:52:26,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:52:26,647 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:52:26,648 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2023-12-25 05:52:26,665 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f88fe5b4e/a3bb9bd2f009438891324f71e4e65d6c/FLAG5ad6670c8 [2023-12-25 05:52:26,682 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f88fe5b4e/a3bb9bd2f009438891324f71e4e65d6c [2023-12-25 05:52:26,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:52:26,685 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:52:26,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:52:26,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:52:26,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:52:26,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:52:26" (1/1) ... [2023-12-25 05:52:26,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e42fd60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:26, skipping insertion in model container [2023-12-25 05:52:26,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:52:26" (1/1) ... [2023-12-25 05:52:26,754 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:52:27,065 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_spec6_product31.cil.c[31008,31021] [2023-12-25 05:52:27,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:52:27,226 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:52:27,238 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:52:27,278 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_spec6_product31.cil.c[31008,31021] [2023-12-25 05:52:27,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:52:27,336 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:52:27,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-25 05:52:27,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [66] [2023-12-25 05:52:27,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [225] [2023-12-25 05:52:27,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1305] [2023-12-25 05:52:27,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1314] [2023-12-25 05:52:27,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1680] [2023-12-25 05:52:27,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1905] [2023-12-25 05:52:27,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2190] [2023-12-25 05:52:27,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2554] [2023-12-25 05:52:27,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2600] [2023-12-25 05:52:27,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2997] [2023-12-25 05:52:27,386 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_spec6_product31.cil.c[31008,31021] [2023-12-25 05:52:27,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:52:27,467 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:52:27,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27 WrapperNode [2023-12-25 05:52:27,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:52:27,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:52:27,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:52:27,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:52:27,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,596 INFO L138 Inliner]: procedures = 134, calls = 209, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 980 [2023-12-25 05:52:27,596 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:52:27,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:52:27,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:52:27,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:52:27,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,652 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 05:52:27,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:52:27,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:52:27,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:52:27,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:52:27,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (1/1) ... [2023-12-25 05:52:27,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:52:27,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:52:27,766 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 05:52:27,773 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 05:52:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:52:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:52:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:52:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:52:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:52:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:52:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:52:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:52:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:52:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:52:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:52:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:52:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:52:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:52:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:52:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:52:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:52:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:52:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:52:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:52:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:52:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:52:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:52:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:52:27,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:52:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:52:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:52:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:52:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:52:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:52:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:52:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:52:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:52:27,793 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:52:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:52:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:52:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:52:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:52:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:52:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:52:27,794 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:52:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:52:27,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:52:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:52:27,984 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:52:27,986 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:52:28,605 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:52:28,657 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:52:28,658 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:52:28,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:52:28 BoogieIcfgContainer [2023-12-25 05:52:28,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:52:28,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:52:28,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:52:28,662 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:52:28,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:52:26" (1/3) ... [2023-12-25 05:52:28,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744f7287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:52:28, skipping insertion in model container [2023-12-25 05:52:28,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:52:27" (2/3) ... [2023-12-25 05:52:28,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744f7287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:52:28, skipping insertion in model container [2023-12-25 05:52:28,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:52:28" (3/3) ... [2023-12-25 05:52:28,664 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2023-12-25 05:52:28,676 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:52:28,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:52:28,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:52:28,726 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;@4398a32e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:52:28,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:52:28,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 342 states, 256 states have (on average 1.55859375) internal successors, (399), 260 states have internal predecessors, (399), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-25 05:52:28,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 05:52:28,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:28,750 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:52:28,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:28,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:28,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1407830515, now seen corresponding path program 1 times [2023-12-25 05:52:28,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:28,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229190221] [2023-12-25 05:52:28,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:28,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:28,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:28,773 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 05:52:28,840 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 05:52:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:29,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:52:29,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:29,252 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:52:29,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:29,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:29,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229190221] [2023-12-25 05:52:29,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229190221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:29,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:29,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:52:29,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502433090] [2023-12-25 05:52:29,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:29,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:52:29,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:29,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:52:29,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:52:29,287 INFO L87 Difference]: Start difference. First operand has 342 states, 256 states have (on average 1.55859375) internal successors, (399), 260 states have internal predecessors, (399), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:29,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:29,376 INFO L93 Difference]: Finished difference Result 539 states and 805 transitions. [2023-12-25 05:52:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:52:29,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 119 [2023-12-25 05:52:29,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:29,399 INFO L225 Difference]: With dead ends: 539 [2023-12-25 05:52:29,399 INFO L226 Difference]: Without dead ends: 339 [2023-12-25 05:52:29,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 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 05:52:29,408 INFO L413 NwaCegarLoop]: 500 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, 500 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 05:52:29,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:29,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-25 05:52:29,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2023-12-25 05:52:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 254 states have (on average 1.5433070866141732) internal successors, (392), 257 states have internal predecessors, (392), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-25 05:52:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 513 transitions. [2023-12-25 05:52:29,487 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 513 transitions. Word has length 119 [2023-12-25 05:52:29,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:29,489 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 513 transitions. [2023-12-25 05:52:29,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:29,489 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 513 transitions. [2023-12-25 05:52:29,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:52:29,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:29,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:52:29,504 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 05:52:29,703 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 05:52:29,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:29,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:29,706 INFO L85 PathProgramCache]: Analyzing trace with hash 385126182, now seen corresponding path program 1 times [2023-12-25 05:52:29,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:29,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480976677] [2023-12-25 05:52:29,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:29,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:29,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:29,710 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 05:52:29,719 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 05:52:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:29,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:52:29,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-25 05:52:30,018 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:30,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:30,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480976677] [2023-12-25 05:52:30,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480976677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:30,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:30,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:52:30,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805844253] [2023-12-25 05:52:30,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:30,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:52:30,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:30,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:52:30,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:52:30,034 INFO L87 Difference]: Start difference. First operand 339 states and 513 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:30,175 INFO L93 Difference]: Finished difference Result 673 states and 1020 transitions. [2023-12-25 05:52:30,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:52:30,175 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 120 [2023-12-25 05:52:30,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:30,178 INFO L225 Difference]: With dead ends: 673 [2023-12-25 05:52:30,178 INFO L226 Difference]: Without dead ends: 341 [2023-12-25 05:52:30,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 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 05:52:30,180 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 8 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1941 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 05:52:30,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1941 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:52:30,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-25 05:52:30,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2023-12-25 05:52:30,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 255 states have (on average 1.5411764705882354) internal successors, (393), 259 states have internal predecessors, (393), 61 states have call successors, (61), 23 states have call predecessors, (61), 24 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2023-12-25 05:52:30,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 516 transitions. [2023-12-25 05:52:30,211 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 516 transitions. Word has length 120 [2023-12-25 05:52:30,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:30,213 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 516 transitions. [2023-12-25 05:52:30,213 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 516 transitions. [2023-12-25 05:52:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:52:30,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:30,215 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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 05:52:30,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-25 05:52:30,422 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 05:52:30,423 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:30,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:30,423 INFO L85 PathProgramCache]: Analyzing trace with hash 495785861, now seen corresponding path program 1 times [2023-12-25 05:52:30,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:30,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092734016] [2023-12-25 05:52:30,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:30,424 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 05:52:30,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:30,432 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 05:52:30,438 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 05:52:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:30,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:52:30,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:30,723 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-25 05:52:30,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:30,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:30,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092734016] [2023-12-25 05:52:30,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092734016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:30,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:30,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:52:30,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109074475] [2023-12-25 05:52:30,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:30,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:52:30,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:30,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:52:30,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:52:30,726 INFO L87 Difference]: Start difference. First operand 341 states and 516 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:30,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:30,846 INFO L93 Difference]: Finished difference Result 675 states and 1024 transitions. [2023-12-25 05:52:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:52:30,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 121 [2023-12-25 05:52:30,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:30,849 INFO L225 Difference]: With dead ends: 675 [2023-12-25 05:52:30,849 INFO L226 Difference]: Without dead ends: 343 [2023-12-25 05:52:30,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 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 05:52:30,850 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 8 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1927 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 05:52:30,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1927 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:52:30,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-25 05:52:30,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2023-12-25 05:52:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 256 states have (on average 1.5390625) internal successors, (394), 261 states have internal predecessors, (394), 61 states have call successors, (61), 23 states have call predecessors, (61), 25 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2023-12-25 05:52:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 521 transitions. [2023-12-25 05:52:30,862 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 521 transitions. Word has length 121 [2023-12-25 05:52:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:30,862 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 521 transitions. [2023-12-25 05:52:30,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 521 transitions. [2023-12-25 05:52:30,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:52:30,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:30,864 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:30,870 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 (4)] Ended with exit code 0 [2023-12-25 05:52:31,070 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 05:52:31,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:31,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:31,071 INFO L85 PathProgramCache]: Analyzing trace with hash 864184901, now seen corresponding path program 1 times [2023-12-25 05:52:31,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:31,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564266259] [2023-12-25 05:52:31,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:31,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:31,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:31,074 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 05:52:31,076 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 05:52:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:31,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:52:31,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:52:31,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:31,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:31,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564266259] [2023-12-25 05:52:31,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564266259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:31,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:31,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:52:31,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653766144] [2023-12-25 05:52:31,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:31,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:52:31,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:31,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:52:31,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:52:31,352 INFO L87 Difference]: Start difference. First operand 343 states and 521 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:31,551 INFO L93 Difference]: Finished difference Result 667 states and 1014 transitions. [2023-12-25 05:52:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:52:31,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 122 [2023-12-25 05:52:31,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:31,555 INFO L225 Difference]: With dead ends: 667 [2023-12-25 05:52:31,556 INFO L226 Difference]: Without dead ends: 343 [2023-12-25 05:52:31,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 05:52:31,568 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 8 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1941 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 05:52:31,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1941 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:52:31,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-25 05:52:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2023-12-25 05:52:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 256 states have (on average 1.5390625) internal successors, (394), 261 states have internal predecessors, (394), 61 states have call successors, (61), 23 states have call predecessors, (61), 25 states have return successors, (65), 60 states have call predecessors, (65), 60 states have call successors, (65) [2023-12-25 05:52:31,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 520 transitions. [2023-12-25 05:52:31,586 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 520 transitions. Word has length 122 [2023-12-25 05:52:31,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:31,586 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 520 transitions. [2023-12-25 05:52:31,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:31,587 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 520 transitions. [2023-12-25 05:52:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:52:31,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:31,591 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:52:31,598 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 (5)] Ended with exit code 0 [2023-12-25 05:52:31,799 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 05:52:31,799 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:31,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:31,800 INFO L85 PathProgramCache]: Analyzing trace with hash -774643834, now seen corresponding path program 2 times [2023-12-25 05:52:31,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:31,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455339764] [2023-12-25 05:52:31,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:52:31,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:31,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:31,802 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 05:52:31,806 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 05:52:31,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:52:31,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:52:31,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:31,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:32,005 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 05:52:32,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:32,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:32,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455339764] [2023-12-25 05:52:32,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455339764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:32,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:32,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:32,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691707576] [2023-12-25 05:52:32,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:32,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:32,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:32,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:32,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:32,008 INFO L87 Difference]: Start difference. First operand 343 states and 520 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:32,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:32,048 INFO L93 Difference]: Finished difference Result 539 states and 799 transitions. [2023-12-25 05:52:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:32,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (19), 2 states have call predecessors, (19), 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 05:52:32,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:32,050 INFO L225 Difference]: With dead ends: 539 [2023-12-25 05:52:32,050 INFO L226 Difference]: Without dead ends: 345 [2023-12-25 05:52:32,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:32,052 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 0 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 993 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 05:52:32,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 993 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:32,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-12-25 05:52:32,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2023-12-25 05:52:32,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 258 states have (on average 1.5348837209302326) internal successors, (396), 263 states have internal predecessors, (396), 61 states have call successors, (61), 23 states have call predecessors, (61), 25 states have return successors, (65), 60 states have call predecessors, (65), 60 states have call successors, (65) [2023-12-25 05:52:32,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 522 transitions. [2023-12-25 05:52:32,063 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 522 transitions. Word has length 123 [2023-12-25 05:52:32,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:32,063 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 522 transitions. [2023-12-25 05:52:32,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:32,064 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 522 transitions. [2023-12-25 05:52:32,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:52:32,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:32,065 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] [2023-12-25 05:52:32,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:52:32,273 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 05:52:32,273 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:32,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:32,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1500104813, now seen corresponding path program 1 times [2023-12-25 05:52:32,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:32,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261006458] [2023-12-25 05:52:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:32,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:32,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:32,276 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 05:52:32,277 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 05:52:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:32,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:52:32,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 05:52:32,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:32,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:32,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261006458] [2023-12-25 05:52:32,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261006458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:32,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:32,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:52:32,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22507103] [2023-12-25 05:52:32,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:32,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:52:32,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:32,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:52:32,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:52:32,540 INFO L87 Difference]: Start difference. First operand 345 states and 522 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:32,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:32,642 INFO L93 Difference]: Finished difference Result 673 states and 1021 transitions. [2023-12-25 05:52:32,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:52:32,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 128 [2023-12-25 05:52:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:32,644 INFO L225 Difference]: With dead ends: 673 [2023-12-25 05:52:32,644 INFO L226 Difference]: Without dead ends: 347 [2023-12-25 05:52:32,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 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 05:52:32,646 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 6 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1943 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 05:52:32,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1943 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:52:32,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-12-25 05:52:32,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-12-25 05:52:32,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.5328185328185329) internal successors, (397), 265 states have internal predecessors, (397), 61 states have call successors, (61), 23 states have call predecessors, (61), 26 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2023-12-25 05:52:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 525 transitions. [2023-12-25 05:52:32,657 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 525 transitions. Word has length 128 [2023-12-25 05:52:32,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:32,657 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 525 transitions. [2023-12-25 05:52:32,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:32,658 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 525 transitions. [2023-12-25 05:52:32,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 05:52:32,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:32,659 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:52:32,666 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 05:52:32,866 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 05:52:32,866 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:32,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:32,867 INFO L85 PathProgramCache]: Analyzing trace with hash -854029069, now seen corresponding path program 1 times [2023-12-25 05:52:32,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:32,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832218932] [2023-12-25 05:52:32,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:32,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:32,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:32,869 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 05:52:32,870 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 05:52:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:33,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:52:33,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:52:33,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:33,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:33,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832218932] [2023-12-25 05:52:33,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832218932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:33,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:33,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:52:33,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475334013] [2023-12-25 05:52:33,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:33,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:52:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:33,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:52:33,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:52:33,188 INFO L87 Difference]: Start difference. First operand 347 states and 525 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:33,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:33,323 INFO L93 Difference]: Finished difference Result 671 states and 1016 transitions. [2023-12-25 05:52:33,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:52:33,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 129 [2023-12-25 05:52:33,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:33,328 INFO L225 Difference]: With dead ends: 671 [2023-12-25 05:52:33,328 INFO L226 Difference]: Without dead ends: 347 [2023-12-25 05:52:33,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 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 05:52:33,331 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 8 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1928 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 05:52:33,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1928 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:52:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-12-25 05:52:33,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-12-25 05:52:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.5328185328185329) internal successors, (397), 265 states have internal predecessors, (397), 61 states have call successors, (61), 23 states have call predecessors, (61), 26 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2023-12-25 05:52:33,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 524 transitions. [2023-12-25 05:52:33,348 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 524 transitions. Word has length 129 [2023-12-25 05:52:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:33,349 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 524 transitions. [2023-12-25 05:52:33,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 524 transitions. [2023-12-25 05:52:33,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 05:52:33,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:33,352 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] [2023-12-25 05:52:33,372 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 (8)] Ended with exit code 0 [2023-12-25 05:52:33,576 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 05:52:33,577 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:33,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:33,577 INFO L85 PathProgramCache]: Analyzing trace with hash -864000635, now seen corresponding path program 2 times [2023-12-25 05:52:33,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:33,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514222902] [2023-12-25 05:52:33,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:52:33,578 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 05:52:33,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:33,580 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 05:52:33,621 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 05:52:33,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 05:52:33,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:52:33,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:52:33,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:52:33,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:33,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:33,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514222902] [2023-12-25 05:52:33,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514222902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:33,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:33,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:52:33,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007370787] [2023-12-25 05:52:33,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:33,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:52:33,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:33,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:52:33,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:52:33,877 INFO L87 Difference]: Start difference. First operand 347 states and 524 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:34,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:34,022 INFO L93 Difference]: Finished difference Result 673 states and 1021 transitions. [2023-12-25 05:52:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:52:34,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2023-12-25 05:52:34,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:34,025 INFO L225 Difference]: With dead ends: 673 [2023-12-25 05:52:34,025 INFO L226 Difference]: Without dead ends: 349 [2023-12-25 05:52:34,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 126 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 05:52:34,028 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 6 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1930 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 05:52:34,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1930 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:52:34,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-12-25 05:52:34,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2023-12-25 05:52:34,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 260 states have (on average 1.5307692307692307) internal successors, (398), 267 states have internal predecessors, (398), 61 states have call successors, (61), 23 states have call predecessors, (61), 27 states have return successors, (70), 60 states have call predecessors, (70), 60 states have call successors, (70) [2023-12-25 05:52:34,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 529 transitions. [2023-12-25 05:52:34,043 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 529 transitions. Word has length 130 [2023-12-25 05:52:34,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:34,043 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 529 transitions. [2023-12-25 05:52:34,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:52:34,044 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 529 transitions. [2023-12-25 05:52:34,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:52:34,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:34,046 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:34,056 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 05:52:34,255 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 05:52:34,255 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:34,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:34,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1729606920, now seen corresponding path program 1 times [2023-12-25 05:52:34,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:34,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708757299] [2023-12-25 05:52:34,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:34,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:34,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:34,258 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 05:52:34,261 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 05:52:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:34,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:34,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:34,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:34,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708757299] [2023-12-25 05:52:34,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708757299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:34,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:34,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:34,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525275703] [2023-12-25 05:52:34,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:34,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:34,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:34,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:34,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:34,537 INFO L87 Difference]: Start difference. First operand 349 states and 529 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:34,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:34,581 INFO L93 Difference]: Finished difference Result 724 states and 1111 transitions. [2023-12-25 05:52:34,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:34,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2023-12-25 05:52:34,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:34,583 INFO L225 Difference]: With dead ends: 724 [2023-12-25 05:52:34,583 INFO L226 Difference]: Without dead ends: 401 [2023-12-25 05:52:34,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 05:52:34,587 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 102 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 963 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 05:52:34,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 963 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:34,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-12-25 05:52:34,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 396. [2023-12-25 05:52:34,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 296 states have (on average 1.5472972972972974) internal successors, (458), 303 states have internal predecessors, (458), 72 states have call successors, (72), 23 states have call predecessors, (72), 27 states have return successors, (83), 71 states have call predecessors, (83), 71 states have call successors, (83) [2023-12-25 05:52:34,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 613 transitions. [2023-12-25 05:52:34,599 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 613 transitions. Word has length 131 [2023-12-25 05:52:34,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:34,600 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 613 transitions. [2023-12-25 05:52:34,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:34,600 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 613 transitions. [2023-12-25 05:52:34,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:52:34,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:34,601 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:52:34,608 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 05:52:34,808 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 05:52:34,808 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:34,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1920111311, now seen corresponding path program 1 times [2023-12-25 05:52:34,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:34,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591669501] [2023-12-25 05:52:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:34,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:34,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:34,814 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 05:52:34,856 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 05:52:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:35,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:52:35,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:35,138 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:35,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:52:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:35,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:35,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591669501] [2023-12-25 05:52:35,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591669501] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:52:35,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:52:35,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:52:35,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116917680] [2023-12-25 05:52:35,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:52:35,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:52:35,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:35,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:52:35,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:52:35,236 INFO L87 Difference]: Start difference. First operand 396 states and 613 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, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:52:35,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:35,478 INFO L93 Difference]: Finished difference Result 920 states and 1476 transitions. [2023-12-25 05:52:35,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:52:35,478 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, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 132 [2023-12-25 05:52:35,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:35,482 INFO L225 Difference]: With dead ends: 920 [2023-12-25 05:52:35,482 INFO L226 Difference]: Without dead ends: 726 [2023-12-25 05:52:35,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 258 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 05:52:35,483 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 538 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:52:35,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 2109 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:52:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2023-12-25 05:52:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 711. [2023-12-25 05:52:35,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 547 states have (on average 1.6142595978062158) internal successors, (883), 554 states have internal predecessors, (883), 136 states have call successors, (136), 23 states have call predecessors, (136), 27 states have return successors, (157), 135 states have call predecessors, (157), 135 states have call successors, (157) [2023-12-25 05:52:35,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1176 transitions. [2023-12-25 05:52:35,506 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1176 transitions. Word has length 132 [2023-12-25 05:52:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:35,506 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 1176 transitions. [2023-12-25 05:52:35,506 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, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:52:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1176 transitions. [2023-12-25 05:52:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 05:52:35,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:35,510 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:35,532 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 05:52:35,718 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 05:52:35,718 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:35,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:35,719 INFO L85 PathProgramCache]: Analyzing trace with hash 994689844, now seen corresponding path program 1 times [2023-12-25 05:52:35,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:35,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035050798] [2023-12-25 05:52:35,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:35,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:35,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:35,721 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 05:52:35,748 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 05:52:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:36,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:36,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:36,041 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:36,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:36,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:36,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035050798] [2023-12-25 05:52:36,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035050798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:36,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:36,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:36,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656481390] [2023-12-25 05:52:36,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:36,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:36,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:36,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:36,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:36,043 INFO L87 Difference]: Start difference. First operand 711 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:36,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:36,136 INFO L93 Difference]: Finished difference Result 1679 states and 2816 transitions. [2023-12-25 05:52:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:36,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2023-12-25 05:52:36,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:36,141 INFO L225 Difference]: With dead ends: 1679 [2023-12-25 05:52:36,141 INFO L226 Difference]: Without dead ends: 1028 [2023-12-25 05:52:36,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 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 05:52:36,144 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 100 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:52:36,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1007 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:52:36,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2023-12-25 05:52:36,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1023. [2023-12-25 05:52:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 795 states have (on average 1.628930817610063) internal successors, (1295), 802 states have internal predecessors, (1295), 200 states have call successors, (200), 23 states have call predecessors, (200), 27 states have return successors, (231), 199 states have call predecessors, (231), 199 states have call successors, (231) [2023-12-25 05:52:36,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1726 transitions. [2023-12-25 05:52:36,182 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1726 transitions. Word has length 138 [2023-12-25 05:52:36,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:36,182 INFO L495 AbstractCegarLoop]: Abstraction has 1023 states and 1726 transitions. [2023-12-25 05:52:36,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:36,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1726 transitions. [2023-12-25 05:52:36,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 05:52:36,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:36,187 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:36,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:52:36,394 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 05:52:36,395 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:36,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:36,395 INFO L85 PathProgramCache]: Analyzing trace with hash 585078328, now seen corresponding path program 1 times [2023-12-25 05:52:36,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:36,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937232001] [2023-12-25 05:52:36,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:36,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:36,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:36,397 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 05:52:36,426 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 05:52:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:36,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:36,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:36,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:36,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:36,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937232001] [2023-12-25 05:52:36,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937232001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:36,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:36,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:36,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959416372] [2023-12-25 05:52:36,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:36,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:36,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:36,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:36,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:36,675 INFO L87 Difference]: Start difference. First operand 1023 states and 1726 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:36,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:36,758 INFO L93 Difference]: Finished difference Result 2428 states and 4118 transitions. [2023-12-25 05:52:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:36,758 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2023-12-25 05:52:36,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:36,765 INFO L225 Difference]: With dead ends: 2428 [2023-12-25 05:52:36,765 INFO L226 Difference]: Without dead ends: 1515 [2023-12-25 05:52:36,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 05:52:36,769 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 98 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 994 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 05:52:36,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 994 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:36,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2023-12-25 05:52:36,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1510. [2023-12-25 05:52:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1187 states have (on average 1.6385846672283066) internal successors, (1945), 1194 states have internal predecessors, (1945), 295 states have call successors, (295), 23 states have call predecessors, (295), 27 states have return successors, (326), 294 states have call predecessors, (326), 294 states have call successors, (326) [2023-12-25 05:52:36,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2566 transitions. [2023-12-25 05:52:36,829 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2566 transitions. Word has length 139 [2023-12-25 05:52:36,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:36,829 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 2566 transitions. [2023-12-25 05:52:36,829 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:36,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2566 transitions. [2023-12-25 05:52:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 05:52:36,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:36,836 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:36,858 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 05:52:37,059 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 05:52:37,060 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:37,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:37,060 INFO L85 PathProgramCache]: Analyzing trace with hash 735516818, now seen corresponding path program 1 times [2023-12-25 05:52:37,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:37,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930966290] [2023-12-25 05:52:37,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:37,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:37,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:37,063 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 05:52:37,064 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 05:52:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:37,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:37,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:37,368 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:37,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:37,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:37,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930966290] [2023-12-25 05:52:37,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930966290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:37,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:37,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:37,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874885675] [2023-12-25 05:52:37,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:37,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:37,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:37,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:37,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:37,370 INFO L87 Difference]: Start difference. First operand 1510 states and 2566 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:37,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:37,466 INFO L93 Difference]: Finished difference Result 3530 states and 6043 transitions. [2023-12-25 05:52:37,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:37,466 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2023-12-25 05:52:37,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:37,488 INFO L225 Difference]: With dead ends: 3530 [2023-12-25 05:52:37,488 INFO L226 Difference]: Without dead ends: 2250 [2023-12-25 05:52:37,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 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 05:52:37,494 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 96 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 984 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 05:52:37,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 984 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2023-12-25 05:52:37,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2245. [2023-12-25 05:52:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 1799 states have (on average 1.6464702612562534) internal successors, (2962), 1806 states have internal predecessors, (2962), 418 states have call successors, (418), 23 states have call predecessors, (418), 27 states have return successors, (465), 417 states have call predecessors, (465), 417 states have call successors, (465) [2023-12-25 05:52:37,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3845 transitions. [2023-12-25 05:52:37,606 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3845 transitions. Word has length 140 [2023-12-25 05:52:37,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:37,606 INFO L495 AbstractCegarLoop]: Abstraction has 2245 states and 3845 transitions. [2023-12-25 05:52:37,607 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:37,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3845 transitions. [2023-12-25 05:52:37,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:52:37,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:37,617 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:37,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:52:37,823 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 05:52:37,823 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:37,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash -514954697, now seen corresponding path program 1 times [2023-12-25 05:52:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:37,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121702143] [2023-12-25 05:52:37,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:37,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:37,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:37,829 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 05:52:37,831 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 05:52:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:38,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:38,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:38,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:38,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:38,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121702143] [2023-12-25 05:52:38,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121702143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:38,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:38,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:38,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154517330] [2023-12-25 05:52:38,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:38,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:38,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:38,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:38,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:38,056 INFO L87 Difference]: Start difference. First operand 2245 states and 3845 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:38,187 INFO L93 Difference]: Finished difference Result 5240 states and 9036 transitions. [2023-12-25 05:52:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:38,187 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2023-12-25 05:52:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:38,219 INFO L225 Difference]: With dead ends: 5240 [2023-12-25 05:52:38,219 INFO L226 Difference]: Without dead ends: 3422 [2023-12-25 05:52:38,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 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 05:52:38,238 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 94 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 984 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 05:52:38,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 984 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2023-12-25 05:52:38,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 3417. [2023-12-25 05:52:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3417 states, 2792 states have (on average 1.651862464183381) internal successors, (4612), 2799 states have internal predecessors, (4612), 597 states have call successors, (597), 23 states have call predecessors, (597), 27 states have return successors, (670), 596 states have call predecessors, (670), 596 states have call successors, (670) [2023-12-25 05:52:38,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3417 states to 3417 states and 5879 transitions. [2023-12-25 05:52:38,421 INFO L78 Accepts]: Start accepts. Automaton has 3417 states and 5879 transitions. Word has length 141 [2023-12-25 05:52:38,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:38,421 INFO L495 AbstractCegarLoop]: Abstraction has 3417 states and 5879 transitions. [2023-12-25 05:52:38,422 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:38,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3417 states and 5879 transitions. [2023-12-25 05:52:38,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:52:38,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:38,436 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:38,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:52:38,643 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 05:52:38,644 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:38,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:38,644 INFO L85 PathProgramCache]: Analyzing trace with hash -32079978, now seen corresponding path program 1 times [2023-12-25 05:52:38,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:38,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865604491] [2023-12-25 05:52:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:38,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:38,646 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 05:52:38,654 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 05:52:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:38,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:38,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:38,880 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:38,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:38,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:38,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865604491] [2023-12-25 05:52:38,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865604491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:38,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:38,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:38,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970219919] [2023-12-25 05:52:38,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:38,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:38,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:38,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:38,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:38,882 INFO L87 Difference]: Start difference. First operand 3417 states and 5879 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:39,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:39,024 INFO L93 Difference]: Finished difference Result 8095 states and 13990 transitions. [2023-12-25 05:52:39,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:39,025 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2023-12-25 05:52:39,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:39,048 INFO L225 Difference]: With dead ends: 8095 [2023-12-25 05:52:39,048 INFO L226 Difference]: Without dead ends: 5392 [2023-12-25 05:52:39,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 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 05:52:39,059 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 92 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:52:39,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 987 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:39,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5392 states. [2023-12-25 05:52:39,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5392 to 5387. [2023-12-25 05:52:39,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5387 states, 4386 states have (on average 1.6422708618331054) internal successors, (7203), 4393 states have internal predecessors, (7203), 973 states have call successors, (973), 23 states have call predecessors, (973), 27 states have return successors, (1090), 972 states have call predecessors, (1090), 972 states have call successors, (1090) [2023-12-25 05:52:39,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5387 states to 5387 states and 9266 transitions. [2023-12-25 05:52:39,359 INFO L78 Accepts]: Start accepts. Automaton has 5387 states and 9266 transitions. Word has length 142 [2023-12-25 05:52:39,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:39,359 INFO L495 AbstractCegarLoop]: Abstraction has 5387 states and 9266 transitions. [2023-12-25 05:52:39,360 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:39,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5387 states and 9266 transitions. [2023-12-25 05:52:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:52:39,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:39,380 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:39,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:52:39,587 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 05:52:39,588 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:39,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:39,588 INFO L85 PathProgramCache]: Analyzing trace with hash 270141235, now seen corresponding path program 1 times [2023-12-25 05:52:39,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:39,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107051918] [2023-12-25 05:52:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:39,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:39,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:39,590 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 05:52:39,595 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 05:52:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:39,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:39,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:39,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:39,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:39,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107051918] [2023-12-25 05:52:39,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107051918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:39,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:39,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:39,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248219916] [2023-12-25 05:52:39,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:39,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:39,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:39,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:39,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:39,836 INFO L87 Difference]: Start difference. First operand 5387 states and 9266 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:40,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:40,106 INFO L93 Difference]: Finished difference Result 13232 states and 22900 transitions. [2023-12-25 05:52:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:40,106 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, (19), 2 states have call predecessors, (19), 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 05:52:40,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:40,142 INFO L225 Difference]: With dead ends: 13232 [2023-12-25 05:52:40,142 INFO L226 Difference]: Without dead ends: 8925 [2023-12-25 05:52:40,154 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 05:52:40,155 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 90 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 989 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 05:52:40,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 989 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:40,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8925 states. [2023-12-25 05:52:40,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8920. [2023-12-25 05:52:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 7313 states have (on average 1.6407766990291262) internal successors, (11999), 7320 states have internal predecessors, (11999), 1579 states have call successors, (1579), 23 states have call predecessors, (1579), 27 states have return successors, (1774), 1578 states have call predecessors, (1774), 1578 states have call successors, (1774) [2023-12-25 05:52:40,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 15352 transitions. [2023-12-25 05:52:40,515 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 15352 transitions. Word has length 143 [2023-12-25 05:52:40,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:40,515 INFO L495 AbstractCegarLoop]: Abstraction has 8920 states and 15352 transitions. [2023-12-25 05:52:40,515 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:40,515 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 15352 transitions. [2023-12-25 05:52:40,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 05:52:40,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:40,568 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:40,593 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 05:52:40,775 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 05:52:40,776 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:40,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:40,776 INFO L85 PathProgramCache]: Analyzing trace with hash 351330344, now seen corresponding path program 1 times [2023-12-25 05:52:40,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:40,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680848434] [2023-12-25 05:52:40,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:40,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:40,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:40,778 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 05:52:40,792 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 05:52:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:40,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:41,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:41,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:41,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680848434] [2023-12-25 05:52:41,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680848434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:41,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:41,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:41,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581296190] [2023-12-25 05:52:41,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:41,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:41,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:41,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:41,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:41,024 INFO L87 Difference]: Start difference. First operand 8920 states and 15352 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:41,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:41,464 INFO L93 Difference]: Finished difference Result 23004 states and 39753 transitions. [2023-12-25 05:52:41,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:41,464 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, (19), 2 states have call predecessors, (19), 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 05:52:41,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:41,537 INFO L225 Difference]: With dead ends: 23004 [2023-12-25 05:52:41,537 INFO L226 Difference]: Without dead ends: 15597 [2023-12-25 05:52:41,566 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 05:52:41,567 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 88 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1003 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 05:52:41,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1003 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:41,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15597 states. [2023-12-25 05:52:42,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15597 to 15592. [2023-12-25 05:52:42,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15592 states, 12782 states have (on average 1.6319824753559693) internal successors, (20860), 12789 states have internal predecessors, (20860), 2782 states have call successors, (2782), 23 states have call predecessors, (2782), 27 states have return successors, (3121), 2781 states have call predecessors, (3121), 2781 states have call successors, (3121) [2023-12-25 05:52:42,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15592 states to 15592 states and 26763 transitions. [2023-12-25 05:52:42,297 INFO L78 Accepts]: Start accepts. Automaton has 15592 states and 26763 transitions. Word has length 144 [2023-12-25 05:52:42,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:42,297 INFO L495 AbstractCegarLoop]: Abstraction has 15592 states and 26763 transitions. [2023-12-25 05:52:42,298 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:42,298 INFO L276 IsEmpty]: Start isEmpty. Operand 15592 states and 26763 transitions. [2023-12-25 05:52:42,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:52:42,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:42,335 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:42,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:52:42,542 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 05:52:42,545 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:42,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:42,546 INFO L85 PathProgramCache]: Analyzing trace with hash -665065966, now seen corresponding path program 1 times [2023-12-25 05:52:42,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:42,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419237415] [2023-12-25 05:52:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:42,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:42,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:42,547 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 05:52:42,550 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 05:52:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:42,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:42,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:42,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:42,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:42,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419237415] [2023-12-25 05:52:42,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419237415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:42,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:42,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:42,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782402845] [2023-12-25 05:52:42,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:42,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:42,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:42,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:42,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:42,779 INFO L87 Difference]: Start difference. First operand 15592 states and 26763 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:43,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:43,544 INFO L93 Difference]: Finished difference Result 41171 states and 71013 transitions. [2023-12-25 05:52:43,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:43,544 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, (19), 2 states have call predecessors, (19), 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 05:52:43,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:43,636 INFO L225 Difference]: With dead ends: 41171 [2023-12-25 05:52:43,637 INFO L226 Difference]: Without dead ends: 27712 [2023-12-25 05:52:43,665 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 05:52:43,665 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 86 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 987 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 05:52:43,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 987 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27712 states. [2023-12-25 05:52:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27712 to 27707. [2023-12-25 05:52:44,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27707 states, 22858 states have (on average 1.6284889316650626) internal successors, (37224), 22865 states have internal predecessors, (37224), 4821 states have call successors, (4821), 23 states have call predecessors, (4821), 27 states have return successors, (5434), 4820 states have call predecessors, (5434), 4820 states have call successors, (5434) [2023-12-25 05:52:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27707 states to 27707 states and 47479 transitions. [2023-12-25 05:52:44,933 INFO L78 Accepts]: Start accepts. Automaton has 27707 states and 47479 transitions. Word has length 145 [2023-12-25 05:52:44,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:44,933 INFO L495 AbstractCegarLoop]: Abstraction has 27707 states and 47479 transitions. [2023-12-25 05:52:44,934 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 27707 states and 47479 transitions. [2023-12-25 05:52:44,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-25 05:52:44,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:44,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:45,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-25 05:52:45,191 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 05:52:45,192 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:45,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:45,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1128075462, now seen corresponding path program 1 times [2023-12-25 05:52:45,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:45,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106023870] [2023-12-25 05:52:45,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:45,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:45,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:45,209 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 05:52:45,256 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 05:52:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:45,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:45,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:45,510 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:45,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:45,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:45,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106023870] [2023-12-25 05:52:45,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106023870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:45,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:45,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:45,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859153324] [2023-12-25 05:52:45,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:45,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:45,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:45,513 INFO L87 Difference]: Start difference. First operand 27707 states and 47479 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:47,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:47,121 INFO L93 Difference]: Finished difference Result 75363 states and 129670 transitions. [2023-12-25 05:52:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:47,121 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, (19), 2 states have call predecessors, (19), 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 05:52:47,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:47,476 INFO L225 Difference]: With dead ends: 75363 [2023-12-25 05:52:47,477 INFO L226 Difference]: Without dead ends: 50536 [2023-12-25 05:52:47,528 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 05:52:47,528 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 84 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 990 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 05:52:47,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 990 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:47,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50536 states. [2023-12-25 05:52:49,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50536 to 50531. [2023-12-25 05:52:49,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50531 states, 41967 states have (on average 1.623609026139586) internal successors, (68138), 41974 states have internal predecessors, (68138), 8536 states have call successors, (8536), 23 states have call predecessors, (8536), 27 states have return successors, (9681), 8535 states have call predecessors, (9681), 8535 states have call successors, (9681) [2023-12-25 05:52:49,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50531 states to 50531 states and 86355 transitions. [2023-12-25 05:52:49,885 INFO L78 Accepts]: Start accepts. Automaton has 50531 states and 86355 transitions. Word has length 146 [2023-12-25 05:52:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:49,886 INFO L495 AbstractCegarLoop]: Abstraction has 50531 states and 86355 transitions. [2023-12-25 05:52:49,886 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 50531 states and 86355 transitions. [2023-12-25 05:52:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:52:50,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:50,010 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:52:50,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:52:50,217 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 05:52:50,217 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:50,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 214540850, now seen corresponding path program 1 times [2023-12-25 05:52:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:50,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044474872] [2023-12-25 05:52:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:50,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:50,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:50,220 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 05:52:50,222 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 05:52:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:50,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:52:50,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:52:50,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:50,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:50,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044474872] [2023-12-25 05:52:50,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044474872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:50,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:50,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:52:50,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500321614] [2023-12-25 05:52:50,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:50,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:52:50,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:50,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:52:50,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:52:50,465 INFO L87 Difference]: Start difference. First operand 50531 states and 86355 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:53,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:53,129 INFO L93 Difference]: Finished difference Result 94110 states and 161264 transitions. [2023-12-25 05:52:53,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:52:53,129 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, (19), 2 states have call predecessors, (19), 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 05:52:53,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:53,510 INFO L225 Difference]: With dead ends: 94110 [2023-12-25 05:52:53,511 INFO L226 Difference]: Without dead ends: 93916 [2023-12-25 05:52:53,561 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 05:52:53,561 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 82 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 987 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 05:52:53,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 987 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:52:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93916 states. [2023-12-25 05:52:57,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93916 to 93911. [2023-12-25 05:52:57,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93911 states, 78548 states have (on average 1.6172149513673169) internal successors, (127029), 78555 states have internal predecessors, (127029), 15335 states have call successors, (15335), 23 states have call predecessors, (15335), 27 states have return successors, (17526), 15334 states have call predecessors, (17526), 15334 states have call successors, (17526) [2023-12-25 05:52:57,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93911 states to 93911 states and 159890 transitions. [2023-12-25 05:52:57,725 INFO L78 Accepts]: Start accepts. Automaton has 93911 states and 159890 transitions. Word has length 147 [2023-12-25 05:52:57,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:57,725 INFO L495 AbstractCegarLoop]: Abstraction has 93911 states and 159890 transitions. [2023-12-25 05:52:57,725 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:52:57,725 INFO L276 IsEmpty]: Start isEmpty. Operand 93911 states and 159890 transitions. [2023-12-25 05:52:57,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-25 05:52:57,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:57,823 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:52:57,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-25 05:52:58,029 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 05:52:58,029 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:58,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:58,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1284472423, now seen corresponding path program 1 times [2023-12-25 05:52:58,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:58,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889100856] [2023-12-25 05:52:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:58,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:58,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:58,046 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 05:52:58,077 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 05:52:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:58,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:52:58,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:52:58,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:52:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:52:58,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:58,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889100856] [2023-12-25 05:52:58,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889100856] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:52:58,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:52:58,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:52:58,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694671824] [2023-12-25 05:52:58,654 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:52:58,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:52:58,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:58,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:52:58,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:52:58,656 INFO L87 Difference]: Start difference. First operand 93911 states and 159890 transitions. Second operand has 16 states, 16 states have (on average 11.125) internal successors, (178), 14 states have internal predecessors, (178), 4 states have call successors, (36), 6 states have call predecessors, (36), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:53:10,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:53:10,514 INFO L93 Difference]: Finished difference Result 276208 states and 476895 transitions. [2023-12-25 05:53:10,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:53:10,515 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.125) internal successors, (178), 14 states have internal predecessors, (178), 4 states have call successors, (36), 6 states have call predecessors, (36), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) Word has length 148 [2023-12-25 05:53:10,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:53:12,066 INFO L225 Difference]: With dead ends: 276208 [2023-12-25 05:53:12,066 INFO L226 Difference]: Without dead ends: 276019 [2023-12-25 05:53:12,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 281 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 05:53:12,202 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1476 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 4704 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 5049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 4704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:53:12,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 2690 Invalid, 5049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 4704 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:53:12,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276019 states. [2023-12-25 05:53:22,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276019 to 187823. [2023-12-25 05:53:23,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187823 states, 157099 states have (on average 1.6172158957090752) internal successors, (254063), 157110 states have internal predecessors, (254063), 30668 states have call successors, (30668), 47 states have call predecessors, (30668), 55 states have return successors, (39415), 30669 states have call predecessors, (39415), 30666 states have call successors, (39415) [2023-12-25 05:53:24,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187823 states to 187823 states and 324146 transitions. [2023-12-25 05:53:24,474 INFO L78 Accepts]: Start accepts. Automaton has 187823 states and 324146 transitions. Word has length 148 [2023-12-25 05:53:24,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:53:24,474 INFO L495 AbstractCegarLoop]: Abstraction has 187823 states and 324146 transitions. [2023-12-25 05:53:24,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.125) internal successors, (178), 14 states have internal predecessors, (178), 4 states have call successors, (36), 6 states have call predecessors, (36), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:53:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 187823 states and 324146 transitions. [2023-12-25 05:53:24,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:53:24,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:53:24,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:53:24,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:53:24,937 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 05:53:24,938 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:53:24,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:53:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1614738691, now seen corresponding path program 1 times [2023-12-25 05:53:24,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:53:24,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993522904] [2023-12-25 05:53:24,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:53:24,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:53:24,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:53:24,940 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 05:53:24,960 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 05:53:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:53:25,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:53:25,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:53:25,334 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:53:25,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:53:25,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:53:25,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993522904] [2023-12-25 05:53:25,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993522904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:53:25,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:53:25,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:53:25,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711338563] [2023-12-25 05:53:25,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:53:25,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:53:25,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:53:25,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:53:25,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:53:25,336 INFO L87 Difference]: Start difference. First operand 187823 states and 324146 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, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-25 05:53:32,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:53:32,420 INFO L93 Difference]: Finished difference Result 188405 states and 325013 transitions. [2023-12-25 05:53:32,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:53:32,420 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, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 149 [2023-12-25 05:53:32,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:53:33,464 INFO L225 Difference]: With dead ends: 188405 [2023-12-25 05:53:33,465 INFO L226 Difference]: Without dead ends: 187901 [2023-12-25 05:53:33,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 141 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 05:53:33,576 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 697 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:53:33,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 3125 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:53:33,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187901 states. [2023-12-25 05:53:43,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187901 to 187897. [2023-12-25 05:53:44,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187897 states, 157150 states have (on average 1.6171237671014953) internal successors, (254131), 157163 states have internal predecessors, (254131), 30690 states have call successors, (30690), 49 states have call predecessors, (30690), 56 states have return successors, (39442), 30690 states have call predecessors, (39442), 30688 states have call successors, (39442) [2023-12-25 05:53:44,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187897 states to 187897 states and 324263 transitions. [2023-12-25 05:53:44,956 INFO L78 Accepts]: Start accepts. Automaton has 187897 states and 324263 transitions. Word has length 149 [2023-12-25 05:53:44,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:53:44,956 INFO L495 AbstractCegarLoop]: Abstraction has 187897 states and 324263 transitions. [2023-12-25 05:53:44,956 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, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-25 05:53:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand 187897 states and 324263 transitions. [2023-12-25 05:53:45,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:53:45,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:53:45,538 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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 05:53:45,546 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 05:53:45,741 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 05:53:45,741 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:53:45,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:53:45,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1966525431, now seen corresponding path program 1 times [2023-12-25 05:53:45,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:53:45,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265646506] [2023-12-25 05:53:45,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:53:45,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:53:45,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:53:45,747 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 05:53:45,748 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 05:53:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:53:45,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:53:45,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:53:45,963 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:53:45,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:53:45,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:53:45,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265646506] [2023-12-25 05:53:45,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265646506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:53:45,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:53:45,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:53:45,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988798533] [2023-12-25 05:53:45,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:53:45,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:53:45,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:53:45,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:53:45,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:53:45,965 INFO L87 Difference]: Start difference. First operand 187897 states and 324263 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:53:53,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:53:53,391 INFO L93 Difference]: Finished difference Result 279375 states and 482197 transitions. [2023-12-25 05:53:53,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:53:53,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2023-12-25 05:53:53,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:53:54,402 INFO L225 Difference]: With dead ends: 279375 [2023-12-25 05:53:54,402 INFO L226 Difference]: Without dead ends: 185422 [2023-12-25 05:53:54,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 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 05:53:54,600 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 10 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1929 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 05:53:54,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1929 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:53:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185422 states.