/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_spec0_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:38:08,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:38:08,772 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 05:38:08,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:38:08,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:38:08,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:38:08,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:38:08,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:38:08,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:38:08,799 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:38:08,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:38:08,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:38:08,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:38:08,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:38:08,802 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:38:08,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:38:08,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:38:08,803 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:38:08,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:38:08,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:38:08,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:38:08,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:38:08,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:38:08,804 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:38:08,804 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:38:08,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:38:08,805 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:38:08,805 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:38:08,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:38:08,805 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:38:08,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:38:08,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:38:08,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:38:08,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:38:08,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:38:08,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:38:08,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:38:08,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:38:08,807 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:38:08,807 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:38:08,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:38:08,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:38:08,808 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:38:08,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:38:08,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:38:08,808 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:38:08,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:38:08,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:38:09,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:38:09,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:38:09,021 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:38:09,022 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:38:09,023 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product31.cil.c [2023-12-25 05:38:09,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:38:10,285 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:38:10,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product31.cil.c [2023-12-25 05:38:10,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/458de1914/47b6c39181704f37b39d130773c87a32/FLAG9b59264a2 [2023-12-25 05:38:10,328 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/458de1914/47b6c39181704f37b39d130773c87a32 [2023-12-25 05:38:10,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:38:10,332 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:38:10,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:38:10,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:38:10,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:38:10,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:38:10" (1/1) ... [2023-12-25 05:38:10,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e23226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:10, skipping insertion in model container [2023-12-25 05:38:10,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:38:10" (1/1) ... [2023-12-25 05:38:10,391 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:38:10,789 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_spec0_product31.cil.c[35932,35945] [2023-12-25 05:38:10,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:38:10,871 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:38:10,889 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:38:10,923 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_spec0_product31.cil.c[35932,35945] [2023-12-25 05:38:10,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:38:10,952 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:38:10,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2023-12-25 05:38:10,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2023-12-25 05:38:10,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [826] [2023-12-25 05:38:10,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1051] [2023-12-25 05:38:10,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1356] [2023-12-25 05:38:10,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1716] [2023-12-25 05:38:10,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1736] [2023-12-25 05:38:10,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1771] [2023-12-25 05:38:10,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1780] [2023-12-25 05:38:10,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2847] [2023-12-25 05:38:10,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2982] [2023-12-25 05:38:11,042 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_spec0_product31.cil.c[35932,35945] [2023-12-25 05:38:11,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:38:11,096 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:38:11,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11 WrapperNode [2023-12-25 05:38:11,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:38:11,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:38:11,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:38:11,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:38:11,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,170 INFO L138 Inliner]: procedures = 133, calls = 203, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 950 [2023-12-25 05:38:11,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:38:11,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:38:11,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:38:11,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:38:11,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,185 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,202 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 05:38:11,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:38:11,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:38:11,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:38:11,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:38:11,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (1/1) ... [2023-12-25 05:38:11,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:38:11,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:38:11,277 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 05:38:11,295 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 05:38:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:38:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:38:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:38:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:38:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:38:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:38:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:38:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:38:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:38:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:38:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:38:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:38:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:38:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:38:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:38:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:38:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:38:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:38:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:38:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:38:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:38:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:38:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:38:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:38:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:38:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:38:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:38:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:38:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:38:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:38:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:38:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:38:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:38:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:38:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:38:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:38:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:38:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:38:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:38:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:38:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:38:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:38:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:38:11,515 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:38:11,518 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:38:12,134 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:38:12,226 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:38:12,226 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:38:12,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:38:12 BoogieIcfgContainer [2023-12-25 05:38:12,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:38:12,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:38:12,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:38:12,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:38:12,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:38:10" (1/3) ... [2023-12-25 05:38:12,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440c64be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:38:12, skipping insertion in model container [2023-12-25 05:38:12,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:11" (2/3) ... [2023-12-25 05:38:12,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440c64be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:38:12, skipping insertion in model container [2023-12-25 05:38:12,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:38:12" (3/3) ... [2023-12-25 05:38:12,234 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product31.cil.c [2023-12-25 05:38:12,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:38:12,247 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:38:12,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:38:12,305 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;@2a837be3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:38:12,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:38:12,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 335 states, 252 states have (on average 1.5634920634920635) internal successors, (394), 256 states have internal predecessors, (394), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-25 05:38:12,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:38:12,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:12,340 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:12,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:12,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:12,345 INFO L85 PathProgramCache]: Analyzing trace with hash 255115246, now seen corresponding path program 1 times [2023-12-25 05:38:12,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:12,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273292024] [2023-12-25 05:38:12,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:12,359 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 05:38:12,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:12,361 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 05:38:12,394 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 05:38:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:12,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:38:12,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-25 05:38:12,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:12,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:12,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273292024] [2023-12-25 05:38:12,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273292024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:12,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:12,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:38:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801670876] [2023-12-25 05:38:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:12,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:38:12,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:12,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:38:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:38:12,773 INFO L87 Difference]: Start difference. First operand has 335 states, 252 states have (on average 1.5634920634920635) internal successors, (394), 256 states have internal predecessors, (394), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:12,894 INFO L93 Difference]: Finished difference Result 525 states and 783 transitions. [2023-12-25 05:38:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:38:12,897 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 137 [2023-12-25 05:38:12,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:12,911 INFO L225 Difference]: With dead ends: 525 [2023-12-25 05:38:12,911 INFO L226 Difference]: Without dead ends: 332 [2023-12-25 05:38:12,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 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 05:38:12,925 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:12,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 490 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:12,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-25 05:38:12,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2023-12-25 05:38:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 250 states have (on average 1.548) internal successors, (387), 253 states have internal predecessors, (387), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-25 05:38:12,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 502 transitions. [2023-12-25 05:38:12,977 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 502 transitions. Word has length 137 [2023-12-25 05:38:12,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:12,978 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 502 transitions. [2023-12-25 05:38:12,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:12,978 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 502 transitions. [2023-12-25 05:38:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 05:38:12,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:12,989 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:12,998 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 05:38:13,192 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 05:38:13,193 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:13,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:13,194 INFO L85 PathProgramCache]: Analyzing trace with hash -386118303, now seen corresponding path program 1 times [2023-12-25 05:38:13,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:13,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145067673] [2023-12-25 05:38:13,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:13,195 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 05:38:13,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:13,196 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 05:38:13,225 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 05:38:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:13,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:38:13,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:13,526 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 05:38:13,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:13,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:13,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145067673] [2023-12-25 05:38:13,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145067673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:13,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:13,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:13,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723518950] [2023-12-25 05:38:13,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:13,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:13,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:13,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:13,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:13,529 INFO L87 Difference]: Start difference. First operand 332 states and 502 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:13,670 INFO L93 Difference]: Finished difference Result 659 states and 998 transitions. [2023-12-25 05:38:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:13,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 138 [2023-12-25 05:38:13,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:13,673 INFO L225 Difference]: With dead ends: 659 [2023-12-25 05:38:13,674 INFO L226 Difference]: Without dead ends: 334 [2023-12-25 05:38:13,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 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 05:38:13,676 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 8 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:13,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1901 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:13,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-25 05:38:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2023-12-25 05:38:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 251 states have (on average 1.545816733067729) internal successors, (388), 255 states have internal predecessors, (388), 58 states have call successors, (58), 23 states have call predecessors, (58), 24 states have return successors, (59), 57 states have call predecessors, (59), 57 states have call successors, (59) [2023-12-25 05:38:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 505 transitions. [2023-12-25 05:38:13,703 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 505 transitions. Word has length 138 [2023-12-25 05:38:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:13,703 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 505 transitions. [2023-12-25 05:38:13,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:13,703 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 505 transitions. [2023-12-25 05:38:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 05:38:13,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:13,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:13,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:13,912 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 05:38:13,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:13,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:13,913 INFO L85 PathProgramCache]: Analyzing trace with hash 442316902, now seen corresponding path program 1 times [2023-12-25 05:38:13,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:13,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506691011] [2023-12-25 05:38:13,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:13,914 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 05:38:13,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:13,916 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 05:38:13,920 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 05:38:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:14,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:14,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 05:38:14,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:14,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:14,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506691011] [2023-12-25 05:38:14,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506691011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:14,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:14,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:14,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358708583] [2023-12-25 05:38:14,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:14,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:14,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:14,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:14,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:14,252 INFO L87 Difference]: Start difference. First operand 334 states and 505 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:14,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:14,369 INFO L93 Difference]: Finished difference Result 661 states and 1002 transitions. [2023-12-25 05:38:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:14,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2023-12-25 05:38:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:14,397 INFO L225 Difference]: With dead ends: 661 [2023-12-25 05:38:14,398 INFO L226 Difference]: Without dead ends: 336 [2023-12-25 05:38:14,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 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 05:38:14,401 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 8 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:14,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1887 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-25 05:38:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2023-12-25 05:38:14,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 257 states have internal predecessors, (389), 58 states have call successors, (58), 23 states have call predecessors, (58), 25 states have return successors, (63), 57 states have call predecessors, (63), 57 states have call successors, (63) [2023-12-25 05:38:14,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 510 transitions. [2023-12-25 05:38:14,424 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 510 transitions. Word has length 139 [2023-12-25 05:38:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:14,424 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 510 transitions. [2023-12-25 05:38:14,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 510 transitions. [2023-12-25 05:38:14,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 05:38:14,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:14,426 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:14,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:14,632 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 05:38:14,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:14,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:14,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1522024168, now seen corresponding path program 1 times [2023-12-25 05:38:14,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:14,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994990775] [2023-12-25 05:38:14,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:14,634 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 05:38:14,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:14,635 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 05:38:14,639 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 05:38:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:14,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:38:14,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:38:14,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:14,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:14,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994990775] [2023-12-25 05:38:14,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994990775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:14,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:14,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:14,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400422192] [2023-12-25 05:38:14,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:14,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:14,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:14,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:14,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:14,919 INFO L87 Difference]: Start difference. First operand 336 states and 510 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:15,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:15,012 INFO L93 Difference]: Finished difference Result 653 states and 992 transitions. [2023-12-25 05:38:15,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:15,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2023-12-25 05:38:15,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:15,014 INFO L225 Difference]: With dead ends: 653 [2023-12-25 05:38:15,015 INFO L226 Difference]: Without dead ends: 336 [2023-12-25 05:38:15,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 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 05:38:15,016 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 8 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:15,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1901 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:15,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-25 05:38:15,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2023-12-25 05:38:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 257 states have internal predecessors, (389), 58 states have call successors, (58), 23 states have call predecessors, (58), 25 states have return successors, (62), 57 states have call predecessors, (62), 57 states have call successors, (62) [2023-12-25 05:38:15,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 509 transitions. [2023-12-25 05:38:15,028 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 509 transitions. Word has length 140 [2023-12-25 05:38:15,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:15,028 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 509 transitions. [2023-12-25 05:38:15,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:15,028 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 509 transitions. [2023-12-25 05:38:15,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:38:15,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:15,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:15,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:15,236 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 05:38:15,236 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:15,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:15,237 INFO L85 PathProgramCache]: Analyzing trace with hash -247006257, now seen corresponding path program 2 times [2023-12-25 05:38:15,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:15,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466319751] [2023-12-25 05:38:15,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:38:15,238 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 05:38:15,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:15,239 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 05:38:15,241 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 05:38:15,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:38:15,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:38:15,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:15,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 05:38:15,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:15,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:15,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466319751] [2023-12-25 05:38:15,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466319751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:15,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:15,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:15,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338640107] [2023-12-25 05:38:15,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:15,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:15,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:15,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:15,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:15,471 INFO L87 Difference]: Start difference. First operand 336 states and 509 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-25 05:38:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:15,543 INFO L93 Difference]: Finished difference Result 343 states and 518 transitions. [2023-12-25 05:38:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2023-12-25 05:38:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:15,546 INFO L225 Difference]: With dead ends: 343 [2023-12-25 05:38:15,546 INFO L226 Difference]: Without dead ends: 341 [2023-12-25 05:38:15,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:15,547 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 1 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:15,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1934 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:15,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-25 05:38:15,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 340. [2023-12-25 05:38:15,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 255 states have (on average 1.5372549019607844) internal successors, (392), 260 states have internal predecessors, (392), 58 states have call successors, (58), 23 states have call predecessors, (58), 26 states have return successors, (65), 58 states have call predecessors, (65), 57 states have call successors, (65) [2023-12-25 05:38:15,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 515 transitions. [2023-12-25 05:38:15,557 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 515 transitions. Word has length 141 [2023-12-25 05:38:15,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:15,558 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 515 transitions. [2023-12-25 05:38:15,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-25 05:38:15,558 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 515 transitions. [2023-12-25 05:38:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:38:15,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:15,560 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:15,570 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 05:38:15,770 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 05:38:15,772 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:15,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:15,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2044515115, now seen corresponding path program 1 times [2023-12-25 05:38:15,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:15,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689748335] [2023-12-25 05:38:15,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:15,774 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 05:38:15,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:15,790 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 05:38:15,792 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 (7)] Waiting until timeout for monitored process [2023-12-25 05:38:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:16,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:38:16,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:16,036 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:38:16,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:16,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:16,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689748335] [2023-12-25 05:38:16,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689748335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:16,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:16,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:16,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552066212] [2023-12-25 05:38:16,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:16,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:16,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:16,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:16,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:16,039 INFO L87 Difference]: Start difference. First operand 340 states and 515 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:16,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:16,132 INFO L93 Difference]: Finished difference Result 663 states and 1007 transitions. [2023-12-25 05:38:16,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:16,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2023-12-25 05:38:16,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:16,134 INFO L225 Difference]: With dead ends: 663 [2023-12-25 05:38:16,134 INFO L226 Difference]: Without dead ends: 342 [2023-12-25 05:38:16,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 05:38:16,136 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 6 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1903 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 05:38:16,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1903 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:16,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-12-25 05:38:16,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2023-12-25 05:38:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 256 states have (on average 1.53515625) internal successors, (393), 262 states have internal predecessors, (393), 58 states have call successors, (58), 23 states have call predecessors, (58), 27 states have return successors, (67), 58 states have call predecessors, (67), 57 states have call successors, (67) [2023-12-25 05:38:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 518 transitions. [2023-12-25 05:38:16,147 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 518 transitions. Word has length 141 [2023-12-25 05:38:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:16,147 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 518 transitions. [2023-12-25 05:38:16,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:16,148 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 518 transitions. [2023-12-25 05:38:16,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:38:16,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:16,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:16,157 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 05:38:16,355 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 05:38:16,355 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:16,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:16,356 INFO L85 PathProgramCache]: Analyzing trace with hash -141746369, now seen corresponding path program 1 times [2023-12-25 05:38:16,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:16,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432677204] [2023-12-25 05:38:16,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:16,357 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 05:38:16,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:16,358 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 05:38:16,360 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 05:38:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:16,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:16,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-25 05:38:16,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:16,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:16,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432677204] [2023-12-25 05:38:16,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432677204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:16,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:16,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:16,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819970437] [2023-12-25 05:38:16,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:16,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:16,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:16,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:16,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:16,656 INFO L87 Difference]: Start difference. First operand 342 states and 518 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, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:16,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:16,773 INFO L93 Difference]: Finished difference Result 661 states and 1002 transitions. [2023-12-25 05:38:16,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:16,774 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, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2023-12-25 05:38:16,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:16,777 INFO L225 Difference]: With dead ends: 661 [2023-12-25 05:38:16,777 INFO L226 Difference]: Without dead ends: 342 [2023-12-25 05:38:16,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 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 05:38:16,780 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 8 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:16,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1888 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:16,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-12-25 05:38:16,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2023-12-25 05:38:16,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 256 states have (on average 1.53515625) internal successors, (393), 262 states have internal predecessors, (393), 58 states have call successors, (58), 23 states have call predecessors, (58), 27 states have return successors, (66), 58 states have call predecessors, (66), 57 states have call successors, (66) [2023-12-25 05:38:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 517 transitions. [2023-12-25 05:38:16,797 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 517 transitions. Word has length 142 [2023-12-25 05:38:16,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:16,798 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 517 transitions. [2023-12-25 05:38:16,798 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, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 517 transitions. [2023-12-25 05:38:16,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:38:16,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:16,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:16,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:17,010 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 05:38:17,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:17,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:17,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1719244869, now seen corresponding path program 2 times [2023-12-25 05:38:17,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447879847] [2023-12-25 05:38:17,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:38:17,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:17,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:17,013 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 05:38:17,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:38:17,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:38:17,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:38:17,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:17,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:17,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:17,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:17,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447879847] [2023-12-25 05:38:17,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447879847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:17,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:17,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:17,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406068196] [2023-12-25 05:38:17,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:17,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:17,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:17,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:17,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:17,230 INFO L87 Difference]: Start difference. First operand 342 states and 517 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:17,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:17,264 INFO L93 Difference]: Finished difference Result 535 states and 791 transitions. [2023-12-25 05:38:17,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:17,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 143 [2023-12-25 05:38:17,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:17,267 INFO L225 Difference]: With dead ends: 535 [2023-12-25 05:38:17,267 INFO L226 Difference]: Without dead ends: 344 [2023-12-25 05:38:17,267 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 05:38:17,268 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 0 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:17,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 973 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:17,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-12-25 05:38:17,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-12-25 05:38:17,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 258 states have (on average 1.5310077519379846) internal successors, (395), 264 states have internal predecessors, (395), 58 states have call successors, (58), 23 states have call predecessors, (58), 27 states have return successors, (66), 58 states have call predecessors, (66), 57 states have call successors, (66) [2023-12-25 05:38:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 519 transitions. [2023-12-25 05:38:17,277 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 519 transitions. Word has length 143 [2023-12-25 05:38:17,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:17,277 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 519 transitions. [2023-12-25 05:38:17,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:17,278 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 519 transitions. [2023-12-25 05:38:17,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-25 05:38:17,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:17,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:17,285 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 05:38:17,483 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 05:38:17,483 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:17,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:17,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1095762344, now seen corresponding path program 1 times [2023-12-25 05:38:17,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:17,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409987515] [2023-12-25 05:38:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:17,485 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 05:38:17,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:17,486 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 05:38:17,487 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 05:38:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:17,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:17,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-25 05:38:17,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:17,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:17,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409987515] [2023-12-25 05:38:17,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409987515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:17,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:17,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:17,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587239342] [2023-12-25 05:38:17,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:17,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:17,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:17,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:17,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:17,732 INFO L87 Difference]: Start difference. First operand 344 states and 519 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:17,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:17,834 INFO L93 Difference]: Finished difference Result 667 states and 1011 transitions. [2023-12-25 05:38:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:17,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2023-12-25 05:38:17,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:17,836 INFO L225 Difference]: With dead ends: 667 [2023-12-25 05:38:17,836 INFO L226 Difference]: Without dead ends: 346 [2023-12-25 05:38:17,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 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 05:38:17,838 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 6 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:17,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1890 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:17,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-12-25 05:38:17,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2023-12-25 05:38:17,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 259 states have (on average 1.528957528957529) internal successors, (396), 266 states have internal predecessors, (396), 58 states have call successors, (58), 23 states have call predecessors, (58), 28 states have return successors, (70), 58 states have call predecessors, (70), 57 states have call successors, (70) [2023-12-25 05:38:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 524 transitions. [2023-12-25 05:38:17,847 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 524 transitions. Word has length 148 [2023-12-25 05:38:17,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:17,847 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 524 transitions. [2023-12-25 05:38:17,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:17,847 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 524 transitions. [2023-12-25 05:38:17,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:38:17,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:17,849 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:17,856 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 05:38:18,054 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 05:38:18,054 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:18,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:18,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1275958955, now seen corresponding path program 1 times [2023-12-25 05:38:18,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:18,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95579292] [2023-12-25 05:38:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:18,056 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 05:38:18,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:18,057 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 05:38:18,058 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 05:38:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:18,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:18,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:18,321 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-25 05:38:18,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:18,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:18,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95579292] [2023-12-25 05:38:18,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95579292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:18,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:18,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:18,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124423005] [2023-12-25 05:38:18,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:18,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:18,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:18,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:18,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:18,323 INFO L87 Difference]: Start difference. First operand 346 states and 524 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:18,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:18,419 INFO L93 Difference]: Finished difference Result 671 states and 1019 transitions. [2023-12-25 05:38:18,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:18,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 149 [2023-12-25 05:38:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:18,422 INFO L225 Difference]: With dead ends: 671 [2023-12-25 05:38:18,422 INFO L226 Difference]: Without dead ends: 348 [2023-12-25 05:38:18,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 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 05:38:18,423 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 6 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:18,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1888 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:18,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-25 05:38:18,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 346. [2023-12-25 05:38:18,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 259 states have (on average 1.528957528957529) internal successors, (396), 266 states have internal predecessors, (396), 58 states have call successors, (58), 23 states have call predecessors, (58), 28 states have return successors, (70), 58 states have call predecessors, (70), 57 states have call successors, (70) [2023-12-25 05:38:18,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 524 transitions. [2023-12-25 05:38:18,432 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 524 transitions. Word has length 149 [2023-12-25 05:38:18,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:18,432 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 524 transitions. [2023-12-25 05:38:18,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:38:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 524 transitions. [2023-12-25 05:38:18,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:38:18,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:18,434 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:18,440 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 05:38:18,640 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 05:38:18,640 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:18,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:18,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1980423767, now seen corresponding path program 1 times [2023-12-25 05:38:18,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:18,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162798102] [2023-12-25 05:38:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:18,642 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 05:38:18,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:18,643 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 05:38:18,680 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 05:38:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:18,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:18,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:18,920 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:18,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:18,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:18,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162798102] [2023-12-25 05:38:18,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162798102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:18,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:18,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:18,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481998514] [2023-12-25 05:38:18,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:18,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:18,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:18,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:18,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:18,922 INFO L87 Difference]: Start difference. First operand 346 states and 524 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:18,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:18,966 INFO L93 Difference]: Finished difference Result 718 states and 1101 transitions. [2023-12-25 05:38:18,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:18,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2023-12-25 05:38:18,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:18,969 INFO L225 Difference]: With dead ends: 718 [2023-12-25 05:38:18,970 INFO L226 Difference]: Without dead ends: 398 [2023-12-25 05:38:18,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:18,973 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 102 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 938 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 05:38:18,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 938 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-12-25 05:38:18,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 393. [2023-12-25 05:38:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 295 states have (on average 1.5457627118644068) internal successors, (456), 302 states have internal predecessors, (456), 69 states have call successors, (69), 23 states have call predecessors, (69), 28 states have return successors, (83), 69 states have call predecessors, (83), 68 states have call successors, (83) [2023-12-25 05:38:18,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 608 transitions. [2023-12-25 05:38:18,987 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 608 transitions. Word has length 149 [2023-12-25 05:38:18,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:18,987 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 608 transitions. [2023-12-25 05:38:18,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:18,987 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 608 transitions. [2023-12-25 05:38:18,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-25 05:38:18,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:18,989 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:18,996 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 05:38:19,195 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 05:38:19,195 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:19,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:19,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1526163630, now seen corresponding path program 1 times [2023-12-25 05:38:19,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:19,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074332937] [2023-12-25 05:38:19,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:19,196 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 05:38:19,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:19,197 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 05:38:19,198 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 05:38:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:19,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:38:19,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:19,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:38:19,506 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:19,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:19,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074332937] [2023-12-25 05:38:19,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074332937] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:38:19,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:38:19,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:38:19,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905848436] [2023-12-25 05:38:19,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:38:19,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:38:19,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:19,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:38:19,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:19,509 INFO L87 Difference]: Start difference. First operand 393 states and 608 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-25 05:38:19,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:19,720 INFO L93 Difference]: Finished difference Result 914 states and 1466 transitions. [2023-12-25 05:38:19,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:38:19,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 150 [2023-12-25 05:38:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:19,724 INFO L225 Difference]: With dead ends: 914 [2023-12-25 05:38:19,724 INFO L226 Difference]: Without dead ends: 723 [2023-12-25 05:38:19,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 294 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 05:38:19,726 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 447 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:19,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1708 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:38:19,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-12-25 05:38:19,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 708. [2023-12-25 05:38:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 546 states have (on average 1.6135531135531136) internal successors, (881), 553 states have internal predecessors, (881), 133 states have call successors, (133), 23 states have call predecessors, (133), 28 states have return successors, (157), 133 states have call predecessors, (157), 132 states have call successors, (157) [2023-12-25 05:38:19,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1171 transitions. [2023-12-25 05:38:19,751 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1171 transitions. Word has length 150 [2023-12-25 05:38:19,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:19,751 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 1171 transitions. [2023-12-25 05:38:19,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-25 05:38:19,751 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1171 transitions. [2023-12-25 05:38:19,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-25 05:38:19,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:19,754 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:19,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:19,962 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 05:38:19,962 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:19,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:19,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1642901361, now seen corresponding path program 1 times [2023-12-25 05:38:19,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:19,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626071197] [2023-12-25 05:38:19,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:19,964 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 05:38:19,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:19,965 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 05:38:19,988 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 05:38:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:20,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:20,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:20,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:20,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:20,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [626071197] [2023-12-25 05:38:20,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [626071197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:20,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:20,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:20,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487242095] [2023-12-25 05:38:20,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:20,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:20,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:20,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:20,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:20,212 INFO L87 Difference]: Start difference. First operand 708 states and 1171 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:20,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:20,271 INFO L93 Difference]: Finished difference Result 1673 states and 2806 transitions. [2023-12-25 05:38:20,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:20,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2023-12-25 05:38:20,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:20,276 INFO L225 Difference]: With dead ends: 1673 [2023-12-25 05:38:20,276 INFO L226 Difference]: Without dead ends: 1025 [2023-12-25 05:38:20,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 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 05:38:20,279 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 100 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 988 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 05:38:20,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 988 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:20,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-12-25 05:38:20,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1020. [2023-12-25 05:38:20,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 794 states have (on average 1.628463476070529) internal successors, (1293), 801 states have internal predecessors, (1293), 197 states have call successors, (197), 23 states have call predecessors, (197), 28 states have return successors, (231), 197 states have call predecessors, (231), 196 states have call successors, (231) [2023-12-25 05:38:20,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1721 transitions. [2023-12-25 05:38:20,315 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1721 transitions. Word has length 156 [2023-12-25 05:38:20,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:20,316 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1721 transitions. [2023-12-25 05:38:20,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:20,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1721 transitions. [2023-12-25 05:38:20,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 05:38:20,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:20,321 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:20,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-25 05:38:20,526 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 05:38:20,526 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:20,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1851104535, now seen corresponding path program 1 times [2023-12-25 05:38:20,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:20,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658622883] [2023-12-25 05:38:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:20,528 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 05:38:20,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:20,530 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 05:38:20,531 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 05:38:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:20,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:20,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:20,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:20,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:20,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658622883] [2023-12-25 05:38:20,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658622883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:20,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:20,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:20,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540565159] [2023-12-25 05:38:20,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:20,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:20,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:20,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:20,773 INFO L87 Difference]: Start difference. First operand 1020 states and 1721 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:20,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:20,883 INFO L93 Difference]: Finished difference Result 2422 states and 4108 transitions. [2023-12-25 05:38:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:20,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2023-12-25 05:38:20,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:20,892 INFO L225 Difference]: With dead ends: 2422 [2023-12-25 05:38:20,892 INFO L226 Difference]: Without dead ends: 1512 [2023-12-25 05:38:20,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 05:38:20,897 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 98 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:20,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 967 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:20,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2023-12-25 05:38:20,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1507. [2023-12-25 05:38:20,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1186 states have (on average 1.6382799325463744) internal successors, (1943), 1193 states have internal predecessors, (1943), 292 states have call successors, (292), 23 states have call predecessors, (292), 28 states have return successors, (326), 292 states have call predecessors, (326), 291 states have call successors, (326) [2023-12-25 05:38:20,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2561 transitions. [2023-12-25 05:38:20,971 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2561 transitions. Word has length 157 [2023-12-25 05:38:20,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:20,971 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 2561 transitions. [2023-12-25 05:38:20,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2561 transitions. [2023-12-25 05:38:20,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-25 05:38:20,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:20,983 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:21,007 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 05:38:21,192 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 05:38:21,192 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:21,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:21,193 INFO L85 PathProgramCache]: Analyzing trace with hash 98686927, now seen corresponding path program 1 times [2023-12-25 05:38:21,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:21,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81989180] [2023-12-25 05:38:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:21,194 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 05:38:21,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:21,207 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 05:38:21,240 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 05:38:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:21,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:21,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:21,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:21,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:21,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81989180] [2023-12-25 05:38:21,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81989180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:21,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:21,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:21,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369946792] [2023-12-25 05:38:21,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:21,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:21,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:21,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:21,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:21,497 INFO L87 Difference]: Start difference. First operand 1507 states and 2561 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:21,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:21,587 INFO L93 Difference]: Finished difference Result 3524 states and 6033 transitions. [2023-12-25 05:38:21,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:21,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2023-12-25 05:38:21,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:21,600 INFO L225 Difference]: With dead ends: 3524 [2023-12-25 05:38:21,600 INFO L226 Difference]: Without dead ends: 2247 [2023-12-25 05:38:21,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:21,606 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 96 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:21,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 964 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:21,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2023-12-25 05:38:21,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2242. [2023-12-25 05:38:21,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 1798 states have (on average 1.646273637374861) internal successors, (2960), 1805 states have internal predecessors, (2960), 415 states have call successors, (415), 23 states have call predecessors, (415), 28 states have return successors, (465), 415 states have call predecessors, (465), 414 states have call successors, (465) [2023-12-25 05:38:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 3840 transitions. [2023-12-25 05:38:21,765 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 3840 transitions. Word has length 158 [2023-12-25 05:38:21,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:21,765 INFO L495 AbstractCegarLoop]: Abstraction has 2242 states and 3840 transitions. [2023-12-25 05:38:21,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:21,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 3840 transitions. [2023-12-25 05:38:21,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-25 05:38:21,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:21,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:21,799 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 05:38:21,980 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 05:38:21,980 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:21,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:21,981 INFO L85 PathProgramCache]: Analyzing trace with hash 178550440, now seen corresponding path program 1 times [2023-12-25 05:38:21,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:21,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025348918] [2023-12-25 05:38:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:21,982 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 05:38:21,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:21,992 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 05:38:22,020 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 05:38:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:22,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:22,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:22,266 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:22,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:22,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:22,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025348918] [2023-12-25 05:38:22,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025348918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:22,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:22,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:22,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419411215] [2023-12-25 05:38:22,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:22,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:22,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:22,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:22,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:22,269 INFO L87 Difference]: Start difference. First operand 2242 states and 3840 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:22,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:22,393 INFO L93 Difference]: Finished difference Result 5234 states and 9026 transitions. [2023-12-25 05:38:22,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:22,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2023-12-25 05:38:22,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:22,408 INFO L225 Difference]: With dead ends: 5234 [2023-12-25 05:38:22,408 INFO L226 Difference]: Without dead ends: 3419 [2023-12-25 05:38:22,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 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 05:38:22,415 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 94 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:22,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 964 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:22,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2023-12-25 05:38:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3414. [2023-12-25 05:38:22,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3414 states, 2791 states have (on average 1.6517377284127552) internal successors, (4610), 2798 states have internal predecessors, (4610), 594 states have call successors, (594), 23 states have call predecessors, (594), 28 states have return successors, (670), 594 states have call predecessors, (670), 593 states have call successors, (670) [2023-12-25 05:38:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3414 states to 3414 states and 5874 transitions. [2023-12-25 05:38:22,610 INFO L78 Accepts]: Start accepts. Automaton has 3414 states and 5874 transitions. Word has length 159 [2023-12-25 05:38:22,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:22,610 INFO L495 AbstractCegarLoop]: Abstraction has 3414 states and 5874 transitions. [2023-12-25 05:38:22,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:22,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3414 states and 5874 transitions. [2023-12-25 05:38:22,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-25 05:38:22,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:22,625 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:22,636 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 05:38:22,833 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 05:38:22,834 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:22,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:22,834 INFO L85 PathProgramCache]: Analyzing trace with hash 334533715, now seen corresponding path program 1 times [2023-12-25 05:38:22,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:22,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216368486] [2023-12-25 05:38:22,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:22,835 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 05:38:22,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:22,836 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 05:38:22,838 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 05:38:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:23,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:23,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:23,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:23,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:23,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216368486] [2023-12-25 05:38:23,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216368486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:23,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:23,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:23,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802084559] [2023-12-25 05:38:23,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:23,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:23,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:23,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:23,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:23,115 INFO L87 Difference]: Start difference. First operand 3414 states and 5874 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:23,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:23,269 INFO L93 Difference]: Finished difference Result 8089 states and 13980 transitions. [2023-12-25 05:38:23,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:23,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2023-12-25 05:38:23,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:23,298 INFO L225 Difference]: With dead ends: 8089 [2023-12-25 05:38:23,298 INFO L226 Difference]: Without dead ends: 5389 [2023-12-25 05:38:23,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:23,313 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 92 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:23,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 979 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:23,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5389 states. [2023-12-25 05:38:23,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5389 to 5384. [2023-12-25 05:38:23,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5384 states, 4385 states have (on average 1.6421892816419612) internal successors, (7201), 4392 states have internal predecessors, (7201), 970 states have call successors, (970), 23 states have call predecessors, (970), 28 states have return successors, (1090), 970 states have call predecessors, (1090), 969 states have call successors, (1090) [2023-12-25 05:38:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5384 states to 5384 states and 9261 transitions. [2023-12-25 05:38:23,591 INFO L78 Accepts]: Start accepts. Automaton has 5384 states and 9261 transitions. Word has length 160 [2023-12-25 05:38:23,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:23,591 INFO L495 AbstractCegarLoop]: Abstraction has 5384 states and 9261 transitions. [2023-12-25 05:38:23,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:23,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5384 states and 9261 transitions. [2023-12-25 05:38:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-25 05:38:23,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:23,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:23,621 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 05:38:23,820 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 05:38:23,821 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:23,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:23,822 INFO L85 PathProgramCache]: Analyzing trace with hash -862351836, now seen corresponding path program 1 times [2023-12-25 05:38:23,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:23,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328919952] [2023-12-25 05:38:23,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:23,822 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 05:38:23,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:23,823 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 05:38:23,860 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 05:38:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:24,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:24,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:24,076 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:24,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:24,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328919952] [2023-12-25 05:38:24,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328919952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:24,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:24,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:24,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19484827] [2023-12-25 05:38:24,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:24,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:24,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:24,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:24,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:24,078 INFO L87 Difference]: Start difference. First operand 5384 states and 9261 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:24,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:24,307 INFO L93 Difference]: Finished difference Result 13226 states and 22890 transitions. [2023-12-25 05:38:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:24,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 161 [2023-12-25 05:38:24,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:24,360 INFO L225 Difference]: With dead ends: 13226 [2023-12-25 05:38:24,360 INFO L226 Difference]: Without dead ends: 8922 [2023-12-25 05:38:24,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:24,379 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 90 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:24,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 969 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8922 states. [2023-12-25 05:38:24,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8922 to 8917. [2023-12-25 05:38:24,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8917 states, 7312 states have (on average 1.6407275711159737) internal successors, (11997), 7319 states have internal predecessors, (11997), 1576 states have call successors, (1576), 23 states have call predecessors, (1576), 28 states have return successors, (1774), 1576 states have call predecessors, (1774), 1575 states have call successors, (1774) [2023-12-25 05:38:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8917 states to 8917 states and 15347 transitions. [2023-12-25 05:38:24,762 INFO L78 Accepts]: Start accepts. Automaton has 8917 states and 15347 transitions. Word has length 161 [2023-12-25 05:38:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:24,762 INFO L495 AbstractCegarLoop]: Abstraction has 8917 states and 15347 transitions. [2023-12-25 05:38:24,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 8917 states and 15347 transitions. [2023-12-25 05:38:24,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-25 05:38:24,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:24,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:24,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:25,007 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 05:38:25,007 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:25,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:25,008 INFO L85 PathProgramCache]: Analyzing trace with hash -477715739, now seen corresponding path program 1 times [2023-12-25 05:38:25,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:25,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713418608] [2023-12-25 05:38:25,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:25,009 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 05:38:25,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:25,010 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 05:38:25,012 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 05:38:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:25,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:25,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:25,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:25,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:25,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713418608] [2023-12-25 05:38:25,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713418608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:25,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:25,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:25,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597609673] [2023-12-25 05:38:25,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:25,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:25,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:25,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:25,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:25,276 INFO L87 Difference]: Start difference. First operand 8917 states and 15347 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:25,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:25,669 INFO L93 Difference]: Finished difference Result 22998 states and 39743 transitions. [2023-12-25 05:38:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:25,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 162 [2023-12-25 05:38:25,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:25,721 INFO L225 Difference]: With dead ends: 22998 [2023-12-25 05:38:25,722 INFO L226 Difference]: Without dead ends: 15594 [2023-12-25 05:38:25,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:25,748 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 88 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:25,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 976 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:25,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15594 states. [2023-12-25 05:38:26,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15594 to 15589. [2023-12-25 05:38:26,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15589 states, 12781 states have (on average 1.631953681245599) internal successors, (20858), 12788 states have internal predecessors, (20858), 2779 states have call successors, (2779), 23 states have call predecessors, (2779), 28 states have return successors, (3121), 2779 states have call predecessors, (3121), 2778 states have call successors, (3121) [2023-12-25 05:38:26,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15589 states to 15589 states and 26758 transitions. [2023-12-25 05:38:26,510 INFO L78 Accepts]: Start accepts. Automaton has 15589 states and 26758 transitions. Word has length 162 [2023-12-25 05:38:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:26,511 INFO L495 AbstractCegarLoop]: Abstraction has 15589 states and 26758 transitions. [2023-12-25 05:38:26,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 15589 states and 26758 transitions. [2023-12-25 05:38:26,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-25 05:38:26,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:26,576 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:26,585 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 05:38:26,782 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 05:38:26,783 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:26,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:26,784 INFO L85 PathProgramCache]: Analyzing trace with hash -262081341, now seen corresponding path program 1 times [2023-12-25 05:38:26,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:26,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774665090] [2023-12-25 05:38:26,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:26,785 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 05:38:26,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:26,786 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 05:38:26,789 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 05:38:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:27,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:27,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:27,071 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:27,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:27,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:27,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774665090] [2023-12-25 05:38:27,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774665090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:27,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:27,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346003567] [2023-12-25 05:38:27,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:27,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:27,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:27,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:27,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:27,074 INFO L87 Difference]: Start difference. First operand 15589 states and 26758 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:27,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:27,814 INFO L93 Difference]: Finished difference Result 41165 states and 71003 transitions. [2023-12-25 05:38:27,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:27,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2023-12-25 05:38:27,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:27,903 INFO L225 Difference]: With dead ends: 41165 [2023-12-25 05:38:27,903 INFO L226 Difference]: Without dead ends: 27709 [2023-12-25 05:38:27,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:27,943 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 86 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:27,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 967 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:27,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27709 states. [2023-12-25 05:38:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27709 to 27704. [2023-12-25 05:38:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27704 states, 22857 states have (on average 1.6284726779542371) internal successors, (37222), 22864 states have internal predecessors, (37222), 4818 states have call successors, (4818), 23 states have call predecessors, (4818), 28 states have return successors, (5434), 4818 states have call predecessors, (5434), 4817 states have call successors, (5434) [2023-12-25 05:38:29,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27704 states to 27704 states and 47474 transitions. [2023-12-25 05:38:29,183 INFO L78 Accepts]: Start accepts. Automaton has 27704 states and 47474 transitions. Word has length 163 [2023-12-25 05:38:29,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:29,183 INFO L495 AbstractCegarLoop]: Abstraction has 27704 states and 47474 transitions. [2023-12-25 05:38:29,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:29,184 INFO L276 IsEmpty]: Start isEmpty. Operand 27704 states and 47474 transitions. [2023-12-25 05:38:29,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-25 05:38:29,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:29,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:29,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:29,469 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 05:38:29,470 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:29,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:29,470 INFO L85 PathProgramCache]: Analyzing trace with hash 158692995, now seen corresponding path program 1 times [2023-12-25 05:38:29,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:29,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966179374] [2023-12-25 05:38:29,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:29,471 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 05:38:29,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:29,472 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 05:38:29,473 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 05:38:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:29,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:29,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:29,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:29,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:29,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966179374] [2023-12-25 05:38:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966179374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:29,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:29,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834687263] [2023-12-25 05:38:29,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:29,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:29,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:29,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:29,728 INFO L87 Difference]: Start difference. First operand 27704 states and 47474 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:31,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:31,137 INFO L93 Difference]: Finished difference Result 75357 states and 129660 transitions. [2023-12-25 05:38:31,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:31,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2023-12-25 05:38:31,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:31,515 INFO L225 Difference]: With dead ends: 75357 [2023-12-25 05:38:31,515 INFO L226 Difference]: Without dead ends: 50533 [2023-12-25 05:38:31,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:31,565 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 84 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 974 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 05:38:31,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 974 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:31,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50533 states. [2023-12-25 05:38:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50533 to 50528. [2023-12-25 05:38:33,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50528 states, 41966 states have (on average 1.6236000571891531) internal successors, (68136), 41973 states have internal predecessors, (68136), 8533 states have call successors, (8533), 23 states have call predecessors, (8533), 28 states have return successors, (9681), 8533 states have call predecessors, (9681), 8532 states have call successors, (9681) [2023-12-25 05:38:33,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50528 states to 50528 states and 86350 transitions. [2023-12-25 05:38:33,721 INFO L78 Accepts]: Start accepts. Automaton has 50528 states and 86350 transitions. Word has length 164 [2023-12-25 05:38:33,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:33,722 INFO L495 AbstractCegarLoop]: Abstraction has 50528 states and 86350 transitions. [2023-12-25 05:38:33,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:33,722 INFO L276 IsEmpty]: Start isEmpty. Operand 50528 states and 86350 transitions. [2023-12-25 05:38:33,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-25 05:38:33,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:33,814 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:33,820 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 05:38:34,020 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 05:38:34,020 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:34,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:34,022 INFO L85 PathProgramCache]: Analyzing trace with hash 742877795, now seen corresponding path program 1 times [2023-12-25 05:38:34,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:34,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014694823] [2023-12-25 05:38:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:34,023 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 05:38:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:34,024 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 05:38:34,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:38:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:34,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:34,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 05:38:34,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:34,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:34,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014694823] [2023-12-25 05:38:34,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014694823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:34,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:34,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:34,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070865476] [2023-12-25 05:38:34,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:34,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:34,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:34,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:34,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:34,289 INFO L87 Difference]: Start difference. First operand 50528 states and 86350 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:36,537 INFO L93 Difference]: Finished difference Result 94104 states and 161254 transitions. [2023-12-25 05:38:36,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:36,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2023-12-25 05:38:36,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:36,926 INFO L225 Difference]: With dead ends: 94104 [2023-12-25 05:38:36,926 INFO L226 Difference]: Without dead ends: 93913 [2023-12-25 05:38:36,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:36,984 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 82 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:36,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 967 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:37,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93913 states. [2023-12-25 05:38:40,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93913 to 93908. [2023-12-25 05:38:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93908 states, 78547 states have (on average 1.6172100780424459) internal successors, (127027), 78554 states have internal predecessors, (127027), 15332 states have call successors, (15332), 23 states have call predecessors, (15332), 28 states have return successors, (17526), 15332 states have call predecessors, (17526), 15331 states have call successors, (17526) [2023-12-25 05:38:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93908 states to 93908 states and 159885 transitions. [2023-12-25 05:38:40,776 INFO L78 Accepts]: Start accepts. Automaton has 93908 states and 159885 transitions. Word has length 165 [2023-12-25 05:38:40,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:40,776 INFO L495 AbstractCegarLoop]: Abstraction has 93908 states and 159885 transitions. [2023-12-25 05:38:40,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:38:40,776 INFO L276 IsEmpty]: Start isEmpty. Operand 93908 states and 159885 transitions. [2023-12-25 05:38:40,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-25 05:38:40,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:40,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:40,951 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 05:38:41,149 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 05:38:41,149 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:41,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:41,150 INFO L85 PathProgramCache]: Analyzing trace with hash -421868444, now seen corresponding path program 1 times [2023-12-25 05:38:41,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:41,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416403550] [2023-12-25 05:38:41,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:41,151 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 05:38:41,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:41,152 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 05:38:41,155 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 05:38:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:41,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:38:41,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:41,534 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 05:38:41,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:38:41,793 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 05:38:41,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:41,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416403550] [2023-12-25 05:38:41,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416403550] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:38:41,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:38:41,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:38:41,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116769769] [2023-12-25 05:38:41,793 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:38:41,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:38:41,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:41,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:38:41,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:38:41,795 INFO L87 Difference]: Start difference. First operand 93908 states and 159885 transitions. Second operand has 16 states, 16 states have (on average 11.5625) internal successors, (185), 14 states have internal predecessors, (185), 4 states have call successors, (38), 6 states have call predecessors, (38), 9 states have return successors, (35), 6 states have call predecessors, (35), 4 states have call successors, (35) [2023-12-25 05:38:53,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:53,489 INFO L93 Difference]: Finished difference Result 276199 states and 476878 transitions. [2023-12-25 05:38:53,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:38:53,490 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.5625) internal successors, (185), 14 states have internal predecessors, (185), 4 states have call successors, (38), 6 states have call predecessors, (38), 9 states have return successors, (35), 6 states have call predecessors, (35), 4 states have call successors, (35) Word has length 166 [2023-12-25 05:38:53,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:55,013 INFO L225 Difference]: With dead ends: 276199 [2023-12-25 05:38:55,013 INFO L226 Difference]: Without dead ends: 276013 [2023-12-25 05:38:55,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:38:55,134 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1713 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 4926 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 5353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 4926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:55,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 2463 Invalid, 5353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 4926 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-25 05:38:55,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276013 states. [2023-12-25 05:39:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276013 to 187817. [2023-12-25 05:39:05,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187817 states, 157097 states have (on average 1.6172110224892902) internal successors, (254059), 157108 states have internal predecessors, (254059), 30662 states have call successors, (30662), 47 states have call predecessors, (30662), 57 states have return successors, (39414), 30665 states have call predecessors, (39414), 30660 states have call successors, (39414) [2023-12-25 05:39:06,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187817 states to 187817 states and 324135 transitions. [2023-12-25 05:39:06,007 INFO L78 Accepts]: Start accepts. Automaton has 187817 states and 324135 transitions. Word has length 166 [2023-12-25 05:39:06,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:39:06,008 INFO L495 AbstractCegarLoop]: Abstraction has 187817 states and 324135 transitions. [2023-12-25 05:39:06,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.5625) internal successors, (185), 14 states have internal predecessors, (185), 4 states have call successors, (38), 6 states have call predecessors, (38), 9 states have return successors, (35), 6 states have call predecessors, (35), 4 states have call successors, (35) [2023-12-25 05:39:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 187817 states and 324135 transitions. [2023-12-25 05:39:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-25 05:39:06,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:39:06,639 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:39:06,646 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 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:39:06,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:39:06,841 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:39:06,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:39:06,842 INFO L85 PathProgramCache]: Analyzing trace with hash -377131322, now seen corresponding path program 1 times [2023-12-25 05:39:06,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:39:06,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935446881] [2023-12-25 05:39:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:39:06,842 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 05:39:06,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:39:06,843 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:39:06,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:39:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:39:07,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:39:07,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:39:07,198 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-25 05:39:07,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:39:07,199 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:39:07,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935446881] [2023-12-25 05:39:07,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935446881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:39:07,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:39:07,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:39:07,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91719714] [2023-12-25 05:39:07,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:39:07,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:39:07,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:39:07,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:39:07,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:39:07,201 INFO L87 Difference]: Start difference. First operand 187817 states and 324135 transitions. Second operand has 9 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-25 05:39:13,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:39:13,896 INFO L93 Difference]: Finished difference Result 188383 states and 324976 transitions. [2023-12-25 05:39:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:39:13,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 167 [2023-12-25 05:39:13,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:39:14,985 INFO L225 Difference]: With dead ends: 188383 [2023-12-25 05:39:14,985 INFO L226 Difference]: Without dead ends: 187963 [2023-12-25 05:39:15,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 159 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 05:39:15,064 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 675 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:39:15,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 3076 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:39:15,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187963 states.