/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_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:38:22,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:38:22,298 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 05:38:22,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:38:22,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:38:22,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:38:22,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:38:22,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:38:22,343 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:38:22,349 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:38:22,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:38:22,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:38:22,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:38:22,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:38:22,352 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:38:22,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:38:22,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:38:22,353 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:38:22,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:38:22,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:38:22,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:38:22,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:38:22,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:38:22,355 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:38:22,355 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:38:22,356 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:38:22,356 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:38:22,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:38:22,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:38:22,356 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:38:22,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:38:22,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:38:22,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:38:22,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:38:22,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:38:22,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:38:22,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:38:22,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:38:22,358 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:38:22,358 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:38:22,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:38:22,360 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:38:22,360 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:38:22,360 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:38:22,361 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:38:22,361 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:38:22,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:38:22,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:38:22,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:38:22,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:38:22,651 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:38:22,652 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:38:22,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product33.cil.c [2023-12-25 05:38:23,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:38:24,149 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:38:24,150 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product33.cil.c [2023-12-25 05:38:24,173 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e275e045/687bc53a4a3a4c2193588bcdbde57e92/FLAGcf4b65c1c [2023-12-25 05:38:24,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e275e045/687bc53a4a3a4c2193588bcdbde57e92 [2023-12-25 05:38:24,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:38:24,191 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:38:24,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:38:24,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:38:24,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:38:24,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:38:24" (1/1) ... [2023-12-25 05:38:24,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c667a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:24, skipping insertion in model container [2023-12-25 05:38:24,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:38:24" (1/1) ... [2023-12-25 05:38:24,273 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:38:24,665 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_product33.cil.c[31228,31241] [2023-12-25 05:38:24,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:38:24,809 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:38:24,835 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:38:24,903 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_product33.cil.c[31228,31241] [2023-12-25 05:38:24,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:38:24,943 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:38:24,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2023-12-25 05:38:24,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1128] [2023-12-25 05:38:24,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1288] [2023-12-25 05:38:24,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1326] [2023-12-25 05:38:24,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1335] [2023-12-25 05:38:24,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1355] [2023-12-25 05:38:24,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1751] [2023-12-25 05:38:24,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1768] [2023-12-25 05:38:24,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2165] [2023-12-25 05:38:24,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2531] [2023-12-25 05:38:24,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2827] [2023-12-25 05:38:24,990 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_product33.cil.c[31228,31241] [2023-12-25 05:38:25,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:38:25,052 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:38:25,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25 WrapperNode [2023-12-25 05:38:25,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:38:25,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:38:25,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:38:25,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:38:25,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,203 INFO L138 Inliner]: procedures = 136, calls = 211, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 997 [2023-12-25 05:38:25,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:38:25,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:38:25,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:38:25,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:38:25,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,231 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,274 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 05:38:25,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,299 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:38:25,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:38:25,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:38:25,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:38:25,356 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (1/1) ... [2023-12-25 05:38:25,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:38:25,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:38:25,387 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 05:38:25,428 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 05:38:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:38:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:38:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:38:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:38:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:38:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:38:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:38:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:38:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:38:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:38:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:38:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:38:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:38:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:38:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:38:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:38:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:38:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:38:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:38:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:38:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:38:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:38:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-25 05:38:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-25 05:38:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:38:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:38:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:38:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:38:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:38:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:38:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:38:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:38:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:38:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:38:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:38:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:38:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:38:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:38:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:38:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:38:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:38:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:38:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:38:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:38:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:38:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:38:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:38:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:38:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:38:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:38:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:38:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:38:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:38:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:38:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:38:25,681 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:38:25,684 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:38:26,612 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:38:26,701 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:38:26,701 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:38:26,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:38:26 BoogieIcfgContainer [2023-12-25 05:38:26,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:38:26,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:38:26,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:38:26,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:38:26,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:38:24" (1/3) ... [2023-12-25 05:38:26,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5b1996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:38:26, skipping insertion in model container [2023-12-25 05:38:26,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:38:25" (2/3) ... [2023-12-25 05:38:26,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5b1996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:38:26, skipping insertion in model container [2023-12-25 05:38:26,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:38:26" (3/3) ... [2023-12-25 05:38:26,712 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product33.cil.c [2023-12-25 05:38:26,729 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:38:26,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:38:26,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:38:26,793 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;@c0d2b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:38:26,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:38:26,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 354 states, 266 states have (on average 1.5601503759398496) internal successors, (415), 270 states have internal predecessors, (415), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-25 05:38:26,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:38:26,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:26,845 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, 1, 1, 1] [2023-12-25 05:38:26,845 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:26,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:26,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2127152086, now seen corresponding path program 1 times [2023-12-25 05:38:26,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:26,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567017556] [2023-12-25 05:38:26,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:26,863 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 05:38:26,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:26,872 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 05:38:26,875 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 05:38:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:27,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:38:27,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:27,306 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 05:38:27,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:27,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:27,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567017556] [2023-12-25 05:38:27,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567017556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:27,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:27,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:38:27,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832822198] [2023-12-25 05:38:27,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:27,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:38:27,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:27,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:38:27,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:38:27,351 INFO L87 Difference]: Start difference. First operand has 354 states, 266 states have (on average 1.5601503759398496) internal successors, (415), 270 states have internal predecessors, (415), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 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 05:38:27,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:27,477 INFO L93 Difference]: Finished difference Result 559 states and 834 transitions. [2023-12-25 05:38:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:38:27,479 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 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 141 [2023-12-25 05:38:27,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:27,496 INFO L225 Difference]: With dead ends: 559 [2023-12-25 05:38:27,496 INFO L226 Difference]: Without dead ends: 351 [2023-12-25 05:38:27,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 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 05:38:27,514 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:27,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:27,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-25 05:38:27,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2023-12-25 05:38:27,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 264 states have (on average 1.5454545454545454) internal successors, (408), 267 states have internal predecessors, (408), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-25 05:38:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 531 transitions. [2023-12-25 05:38:27,605 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 531 transitions. Word has length 141 [2023-12-25 05:38:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:27,606 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 531 transitions. [2023-12-25 05:38:27,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 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 05:38:27,607 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 531 transitions. [2023-12-25 05:38:27,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:38:27,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:27,615 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, 1, 1, 1, 1] [2023-12-25 05:38:27,623 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 05:38:27,816 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 05:38:27,817 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:27,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:27,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1477666789, now seen corresponding path program 1 times [2023-12-25 05:38:27,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:27,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180513131] [2023-12-25 05:38:27,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:27,819 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 05:38:27,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:27,821 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 05:38:27,837 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 05:38:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:28,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:38:28,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:28,262 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 05:38:28,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:28,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:28,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180513131] [2023-12-25 05:38:28,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180513131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:28,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:28,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:28,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798859178] [2023-12-25 05:38:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:28,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:28,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:28,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:28,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:28,269 INFO L87 Difference]: Start difference. First operand 351 states and 531 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 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 05:38:28,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:28,479 INFO L93 Difference]: Finished difference Result 697 states and 1056 transitions. [2023-12-25 05:38:28,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:28,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 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 142 [2023-12-25 05:38:28,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:28,490 INFO L225 Difference]: With dead ends: 697 [2023-12-25 05:38:28,490 INFO L226 Difference]: Without dead ends: 353 [2023-12-25 05:38:28,495 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 05:38:28,497 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 8 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:28,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2009 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-12-25 05:38:28,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2023-12-25 05:38:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 265 states have (on average 1.5433962264150944) internal successors, (409), 269 states have internal predecessors, (409), 62 states have call successors, (62), 24 states have call predecessors, (62), 25 states have return successors, (63), 61 states have call predecessors, (63), 61 states have call successors, (63) [2023-12-25 05:38:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 534 transitions. [2023-12-25 05:38:28,523 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 534 transitions. Word has length 142 [2023-12-25 05:38:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:28,523 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 534 transitions. [2023-12-25 05:38:28,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 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 05:38:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 534 transitions. [2023-12-25 05:38:28,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:38:28,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:28,527 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, 1, 1, 1, 1] [2023-12-25 05:38:28,539 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 05:38:28,740 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 05:38:28,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:28,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:28,750 INFO L85 PathProgramCache]: Analyzing trace with hash 647064164, now seen corresponding path program 1 times [2023-12-25 05:38:28,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:28,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686586802] [2023-12-25 05:38:28,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:28,752 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 05:38:28,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:28,754 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 05:38:28,787 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 05:38:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:29,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:29,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:29,169 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 05:38:29,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:29,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:29,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686586802] [2023-12-25 05:38:29,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686586802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:29,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:29,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:29,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822961854] [2023-12-25 05:38:29,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:29,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:29,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:29,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:29,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:29,172 INFO L87 Difference]: Start difference. First operand 353 states and 534 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 05:38:29,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:29,332 INFO L93 Difference]: Finished difference Result 699 states and 1060 transitions. [2023-12-25 05:38:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:29,333 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 143 [2023-12-25 05:38:29,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:29,336 INFO L225 Difference]: With dead ends: 699 [2023-12-25 05:38:29,336 INFO L226 Difference]: Without dead ends: 355 [2023-12-25 05:38:29,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 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 05:38:29,339 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 8 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:29,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1995 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:29,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-12-25 05:38:29,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2023-12-25 05:38:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 266 states have (on average 1.5413533834586466) internal successors, (410), 271 states have internal predecessors, (410), 62 states have call successors, (62), 24 states have call predecessors, (62), 26 states have return successors, (67), 61 states have call predecessors, (67), 61 states have call successors, (67) [2023-12-25 05:38:29,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 539 transitions. [2023-12-25 05:38:29,360 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 539 transitions. Word has length 143 [2023-12-25 05:38:29,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:29,360 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 539 transitions. [2023-12-25 05:38:29,360 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 05:38:29,360 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 539 transitions. [2023-12-25 05:38:29,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 05:38:29,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:29,365 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] [2023-12-25 05:38:29,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:29,574 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 05:38:29,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:29,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:29,575 INFO L85 PathProgramCache]: Analyzing trace with hash -240841084, now seen corresponding path program 1 times [2023-12-25 05:38:29,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:29,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058698472] [2023-12-25 05:38:29,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:29,576 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 05:38:29,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:29,578 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 05:38:29,580 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 05:38:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:29,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:38:29,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:29,933 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 05:38:29,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:29,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:29,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058698472] [2023-12-25 05:38:29,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058698472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:29,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:29,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:29,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982020907] [2023-12-25 05:38:29,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:29,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:29,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:29,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:29,937 INFO L87 Difference]: Start difference. First operand 355 states and 539 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 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 05:38:30,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:30,062 INFO L93 Difference]: Finished difference Result 691 states and 1050 transitions. [2023-12-25 05:38:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:30,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 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 144 [2023-12-25 05:38:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:30,066 INFO L225 Difference]: With dead ends: 691 [2023-12-25 05:38:30,066 INFO L226 Difference]: Without dead ends: 355 [2023-12-25 05:38:30,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 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 05:38:30,068 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 8 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:30,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2009 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:30,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-12-25 05:38:30,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2023-12-25 05:38:30,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 266 states have (on average 1.5413533834586466) internal successors, (410), 271 states have internal predecessors, (410), 62 states have call successors, (62), 24 states have call predecessors, (62), 26 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2023-12-25 05:38:30,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 538 transitions. [2023-12-25 05:38:30,085 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 538 transitions. Word has length 144 [2023-12-25 05:38:30,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:30,086 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 538 transitions. [2023-12-25 05:38:30,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 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 05:38:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 538 transitions. [2023-12-25 05:38:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:38:30,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:30,089 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] [2023-12-25 05:38:30,100 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 05:38:30,298 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 05:38:30,298 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:30,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:30,299 INFO L85 PathProgramCache]: Analyzing trace with hash -204851665, now seen corresponding path program 2 times [2023-12-25 05:38:30,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:30,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115588268] [2023-12-25 05:38:30,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:38:30,300 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 05:38:30,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:30,301 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 05:38:30,302 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 05:38:30,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:38:30,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:38:30,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:30,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:30,546 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-25 05:38:30,546 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:30,546 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:30,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115588268] [2023-12-25 05:38:30,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115588268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:30,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:30,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:30,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596758096] [2023-12-25 05:38:30,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:30,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:30,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:30,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:30,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:30,548 INFO L87 Difference]: Start difference. First operand 355 states and 538 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (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 05:38:30,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:30,601 INFO L93 Difference]: Finished difference Result 559 states and 828 transitions. [2023-12-25 05:38:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:30,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (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 145 [2023-12-25 05:38:30,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:30,604 INFO L225 Difference]: With dead ends: 559 [2023-12-25 05:38:30,604 INFO L226 Difference]: Without dead ends: 357 [2023-12-25 05:38:30,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:30,606 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 0 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:30,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1027 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-12-25 05:38:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2023-12-25 05:38:30,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 268 states have (on average 1.537313432835821) internal successors, (412), 273 states have internal predecessors, (412), 62 states have call successors, (62), 24 states have call predecessors, (62), 26 states have return successors, (66), 61 states have call predecessors, (66), 61 states have call successors, (66) [2023-12-25 05:38:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 540 transitions. [2023-12-25 05:38:30,620 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 540 transitions. Word has length 145 [2023-12-25 05:38:30,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:30,621 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 540 transitions. [2023-12-25 05:38:30,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (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 05:38:30,621 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 540 transitions. [2023-12-25 05:38:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-25 05:38:30,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:30,623 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:30,632 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 05:38:30,829 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 05:38:30,830 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:30,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:30,830 INFO L85 PathProgramCache]: Analyzing trace with hash 734335206, now seen corresponding path program 1 times [2023-12-25 05:38:30,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:30,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347017595] [2023-12-25 05:38:30,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:30,831 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 05:38:30,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:30,832 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 05:38:30,833 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 05:38:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:31,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:38:31,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:31,230 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:38:31,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:31,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:31,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347017595] [2023-12-25 05:38:31,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347017595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:31,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:31,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:31,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330157660] [2023-12-25 05:38:31,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:31,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:31,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:31,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:31,235 INFO L87 Difference]: Start difference. First operand 357 states and 540 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 05:38:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:31,381 INFO L93 Difference]: Finished difference Result 697 states and 1057 transitions. [2023-12-25 05:38:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:31,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 152 [2023-12-25 05:38:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:31,386 INFO L225 Difference]: With dead ends: 697 [2023-12-25 05:38:31,387 INFO L226 Difference]: Without dead ends: 359 [2023-12-25 05:38:31,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:31,391 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 6 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2011 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 05:38:31,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2011 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:31,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-25 05:38:31,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-25 05:38:31,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 269 states have (on average 1.5353159851301115) internal successors, (413), 275 states have internal predecessors, (413), 62 states have call successors, (62), 24 states have call predecessors, (62), 27 states have return successors, (68), 61 states have call predecessors, (68), 61 states have call successors, (68) [2023-12-25 05:38:31,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 543 transitions. [2023-12-25 05:38:31,410 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 543 transitions. Word has length 152 [2023-12-25 05:38:31,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:31,411 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 543 transitions. [2023-12-25 05:38:31,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 05:38:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 543 transitions. [2023-12-25 05:38:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:38:31,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:31,416 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, 1, 1, 1, 1, 1] [2023-12-25 05:38:31,432 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 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:31,625 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 05:38:31,625 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:31,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:31,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2017649302, now seen corresponding path program 1 times [2023-12-25 05:38:31,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:31,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400233212] [2023-12-25 05:38:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:31,627 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 05:38:31,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:31,629 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 05:38:31,631 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 05:38:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:31,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:31,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-25 05:38:31,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:31,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400233212] [2023-12-25 05:38:31,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400233212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:31,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:31,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:31,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773824420] [2023-12-25 05:38:31,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:31,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:31,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:31,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:31,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:31,962 INFO L87 Difference]: Start difference. First operand 359 states and 543 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (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 05:38:32,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:32,083 INFO L93 Difference]: Finished difference Result 695 states and 1052 transitions. [2023-12-25 05:38:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:32,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (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 153 [2023-12-25 05:38:32,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:32,086 INFO L225 Difference]: With dead ends: 695 [2023-12-25 05:38:32,087 INFO L226 Difference]: Without dead ends: 359 [2023-12-25 05:38:32,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:32,089 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 8 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:32,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1996 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:32,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-25 05:38:32,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-25 05:38:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 269 states have (on average 1.5353159851301115) internal successors, (413), 275 states have internal predecessors, (413), 62 states have call successors, (62), 24 states have call predecessors, (62), 27 states have return successors, (67), 61 states have call predecessors, (67), 61 states have call successors, (67) [2023-12-25 05:38:32,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 542 transitions. [2023-12-25 05:38:32,101 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 542 transitions. Word has length 153 [2023-12-25 05:38:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:32,102 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 542 transitions. [2023-12-25 05:38:32,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (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 05:38:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 542 transitions. [2023-12-25 05:38:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-25 05:38:32,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:32,105 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, 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 05:38:32,120 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 05:38:32,308 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 05:38:32,308 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:32,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:32,309 INFO L85 PathProgramCache]: Analyzing trace with hash 280821172, now seen corresponding path program 2 times [2023-12-25 05:38:32,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:32,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046846378] [2023-12-25 05:38:32,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:38:32,310 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 05:38:32,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:32,311 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 05:38:32,313 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 05:38:32,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 05:38:32,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:38:32,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:38:32,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:38:32,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:38:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 05:38:33,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:33,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046846378] [2023-12-25 05:38:33,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046846378] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:38:33,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:38:33,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:38:33,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747504987] [2023-12-25 05:38:33,148 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:38:33,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:38:33,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:33,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:38:33,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:38:33,150 INFO L87 Difference]: Start difference. First operand 359 states and 542 transitions. Second operand has 16 states, 16 states have (on average 9.875) internal successors, (158), 14 states have internal predecessors, (158), 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 05:38:37,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:37,707 INFO L93 Difference]: Finished difference Result 1217 states and 1853 transitions. [2023-12-25 05:38:37,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:38:37,708 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 14 states have internal predecessors, (158), 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 154 [2023-12-25 05:38:37,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:37,714 INFO L225 Difference]: With dead ends: 1217 [2023-12-25 05:38:37,714 INFO L226 Difference]: Without dead ends: 1020 [2023-12-25 05:38:37,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 293 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 05:38:37,716 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1632 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 5667 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 6146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 5667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:37,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 2525 Invalid, 6146 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [479 Valid, 5667 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 05:38:37,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2023-12-25 05:38:37,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 719. [2023-12-25 05:38:37,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 541 states have (on average 1.5360443622920517) internal successors, (831), 550 states have internal predecessors, (831), 122 states have call successors, (122), 49 states have call predecessors, (122), 55 states have return successors, (135), 123 states have call predecessors, (135), 120 states have call successors, (135) [2023-12-25 05:38:37,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1088 transitions. [2023-12-25 05:38:37,764 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1088 transitions. Word has length 154 [2023-12-25 05:38:37,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:37,765 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 1088 transitions. [2023-12-25 05:38:37,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 14 states have internal predecessors, (158), 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 05:38:37,765 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1088 transitions. [2023-12-25 05:38:37,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-25 05:38:37,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:37,769 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:37,781 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 05:38:37,978 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 05:38:37,979 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:37,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2106559788, now seen corresponding path program 1 times [2023-12-25 05:38:37,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:37,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806014025] [2023-12-25 05:38:37,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:37,980 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 05:38:37,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:37,981 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 05:38:37,983 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 05:38:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:38,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:38:38,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:38,278 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 05:38:38,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:38,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:38,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806014025] [2023-12-25 05:38:38,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806014025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:38,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:38,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:38:38,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927440201] [2023-12-25 05:38:38,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:38,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:38:38,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:38,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:38:38,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:38,281 INFO L87 Difference]: Start difference. First operand 719 states and 1088 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (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 05:38:38,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:38,439 INFO L93 Difference]: Finished difference Result 1405 states and 2134 transitions. [2023-12-25 05:38:38,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:38:38,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (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 155 [2023-12-25 05:38:38,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:38,447 INFO L225 Difference]: With dead ends: 1405 [2023-12-25 05:38:38,447 INFO L226 Difference]: Without dead ends: 725 [2023-12-25 05:38:38,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 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 05:38:38,455 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 6 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:38,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1998 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:38,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2023-12-25 05:38:38,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 723. [2023-12-25 05:38:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 543 states have (on average 1.5340699815837937) internal successors, (833), 554 states have internal predecessors, (833), 122 states have call successors, (122), 49 states have call predecessors, (122), 57 states have return successors, (140), 123 states have call predecessors, (140), 120 states have call successors, (140) [2023-12-25 05:38:38,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1095 transitions. [2023-12-25 05:38:38,496 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1095 transitions. Word has length 155 [2023-12-25 05:38:38,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:38,497 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 1095 transitions. [2023-12-25 05:38:38,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (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 05:38:38,497 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1095 transitions. [2023-12-25 05:38:38,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-25 05:38:38,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:38,501 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, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:38,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:38,710 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 05:38:38,711 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:38,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:38,711 INFO L85 PathProgramCache]: Analyzing trace with hash 859761229, now seen corresponding path program 1 times [2023-12-25 05:38:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:38,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268559398] [2023-12-25 05:38:38,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:38,712 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 05:38:38,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:38,713 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 05:38:38,714 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 05:38:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:38,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:38,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:38,970 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 05:38:38,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:38,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:38,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268559398] [2023-12-25 05:38:38,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268559398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:38,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:38,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:38,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160780936] [2023-12-25 05:38:38,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:38,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:38,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:38,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:38,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:38,972 INFO L87 Difference]: Start difference. First operand 723 states and 1095 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 05:38:39,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:39,067 INFO L93 Difference]: Finished difference Result 1513 states and 2328 transitions. [2023-12-25 05:38:39,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:39,067 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 05:38:39,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:39,073 INFO L225 Difference]: With dead ends: 1513 [2023-12-25 05:38:39,073 INFO L226 Difference]: Without dead ends: 835 [2023-12-25 05:38:39,076 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 05:38:39,077 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 109 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:39,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 995 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:39,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2023-12-25 05:38:39,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 825. [2023-12-25 05:38:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 623 states have (on average 1.552166934189406) internal successors, (967), 634 states have internal predecessors, (967), 144 states have call successors, (144), 49 states have call predecessors, (144), 57 states have return successors, (170), 145 states have call predecessors, (170), 142 states have call successors, (170) [2023-12-25 05:38:39,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1281 transitions. [2023-12-25 05:38:39,123 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1281 transitions. Word has length 156 [2023-12-25 05:38:39,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:39,124 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1281 transitions. [2023-12-25 05:38:39,124 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 05:38:39,124 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1281 transitions. [2023-12-25 05:38:39,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 05:38:39,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:39,129 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:39,140 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 05:38:39,337 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 05:38:39,338 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:39,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:39,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1690778586, now seen corresponding path program 1 times [2023-12-25 05:38:39,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:39,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57600616] [2023-12-25 05:38:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:39,339 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 05:38:39,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:39,341 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 05:38:39,343 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 05:38:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:39,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:38:39,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:38:39,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:39,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:39,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57600616] [2023-12-25 05:38:39,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57600616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:39,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:39,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:38:39,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736336505] [2023-12-25 05:38:39,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:39,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:38:39,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:39,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:38:39,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:38:39,676 INFO L87 Difference]: Start difference. First operand 825 states and 1281 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (20), 3 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 05:38:39,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:39,805 INFO L93 Difference]: Finished difference Result 1619 states and 2511 transitions. [2023-12-25 05:38:39,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:38:39,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (20), 3 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 157 [2023-12-25 05:38:39,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:39,811 INFO L225 Difference]: With dead ends: 1619 [2023-12-25 05:38:39,811 INFO L226 Difference]: Without dead ends: 837 [2023-12-25 05:38:39,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:38:39,816 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 492 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:39,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1048 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:39,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-12-25 05:38:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 833. [2023-12-25 05:38:39,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 629 states have (on average 1.5357710651828298) internal successors, (966), 640 states have internal predecessors, (966), 144 states have call successors, (144), 51 states have call predecessors, (144), 59 states have return successors, (168), 145 states have call predecessors, (168), 142 states have call successors, (168) [2023-12-25 05:38:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1278 transitions. [2023-12-25 05:38:39,861 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1278 transitions. Word has length 157 [2023-12-25 05:38:39,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:39,861 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1278 transitions. [2023-12-25 05:38:39,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (20), 3 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 05:38:39,862 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1278 transitions. [2023-12-25 05:38:39,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-25 05:38:39,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:39,867 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:38:39,878 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 05:38:40,075 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 05:38:40,075 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:40,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:40,076 INFO L85 PathProgramCache]: Analyzing trace with hash -865401194, now seen corresponding path program 1 times [2023-12-25 05:38:40,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:40,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227281204] [2023-12-25 05:38:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:40,077 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 05:38:40,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:40,078 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 05:38:40,112 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 05:38:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:40,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:38:40,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:40,356 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 05:38:40,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:38:40,445 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 05:38:40,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:40,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227281204] [2023-12-25 05:38:40,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227281204] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:38:40,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:38:40,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:38:40,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296633958] [2023-12-25 05:38:40,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:38:40,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:38:40,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:40,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:38:40,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:38:40,448 INFO L87 Difference]: Start difference. First operand 833 states and 1278 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 05:38:40,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:40,752 INFO L93 Difference]: Finished difference Result 1929 states and 3080 transitions. [2023-12-25 05:38:40,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:38:40,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 158 [2023-12-25 05:38:40,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:40,766 INFO L225 Difference]: With dead ends: 1929 [2023-12-25 05:38:40,766 INFO L226 Difference]: Without dead ends: 1523 [2023-12-25 05:38:40,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 310 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 05:38:40,769 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 398 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:40,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2640 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:38:40,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2023-12-25 05:38:40,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1493. [2023-12-25 05:38:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1161 states have (on average 1.5900086132644273) internal successors, (1846), 1172 states have internal predecessors, (1846), 272 states have call successors, (272), 51 states have call predecessors, (272), 59 states have return successors, (336), 273 states have call predecessors, (336), 270 states have call successors, (336) [2023-12-25 05:38:40,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2454 transitions. [2023-12-25 05:38:40,853 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2454 transitions. Word has length 158 [2023-12-25 05:38:40,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:40,853 INFO L495 AbstractCegarLoop]: Abstraction has 1493 states and 2454 transitions. [2023-12-25 05:38:40,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 05:38:40,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2454 transitions. [2023-12-25 05:38:40,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-25 05:38:40,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:40,861 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 05:38:40,870 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 05:38:41,070 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 05:38:41,070 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:41,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:41,071 INFO L85 PathProgramCache]: Analyzing trace with hash -362874399, now seen corresponding path program 1 times [2023-12-25 05:38:41,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:41,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050378077] [2023-12-25 05:38:41,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:41,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:41,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:41,073 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 05:38:41,082 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 05:38:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:41,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:41,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:41,389 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 05:38:41,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:41,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:41,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050378077] [2023-12-25 05:38:41,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050378077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:41,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:41,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:41,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143259272] [2023-12-25 05:38:41,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:41,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:41,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:41,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:41,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:41,410 INFO L87 Difference]: Start difference. First operand 1493 states and 2454 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 05:38:41,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:41,566 INFO L93 Difference]: Finished difference Result 3483 states and 5845 transitions. [2023-12-25 05:38:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:41,567 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 05:38:41,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:41,580 INFO L225 Difference]: With dead ends: 3483 [2023-12-25 05:38:41,581 INFO L226 Difference]: Without dead ends: 2127 [2023-12-25 05:38:41,587 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 05:38:41,587 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 103 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:41,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1028 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:41,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2023-12-25 05:38:41,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 2117. [2023-12-25 05:38:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1657 states have (on average 1.6113458056729029) internal successors, (2670), 1668 states have internal predecessors, (2670), 400 states have call successors, (400), 51 states have call predecessors, (400), 59 states have return successors, (504), 401 states have call predecessors, (504), 398 states have call successors, (504) [2023-12-25 05:38:41,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3574 transitions. [2023-12-25 05:38:41,693 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3574 transitions. Word has length 161 [2023-12-25 05:38:41,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:41,693 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 3574 transitions. [2023-12-25 05:38:41,694 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 05:38:41,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3574 transitions. [2023-12-25 05:38:41,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-25 05:38:41,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:41,706 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 05:38:41,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:38:41,915 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 05:38:41,915 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:41,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:41,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1429286827, now seen corresponding path program 1 times [2023-12-25 05:38:41,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:41,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739662280] [2023-12-25 05:38:41,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:41,917 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 05:38:41,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:41,919 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 05:38:41,920 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 (15)] Waiting until timeout for monitored process [2023-12-25 05:38:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:42,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:42,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:42,219 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 05:38:42,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:42,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:42,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739662280] [2023-12-25 05:38:42,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739662280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:42,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:42,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:42,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684665006] [2023-12-25 05:38:42,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:42,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:42,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:42,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:42,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:42,222 INFO L87 Difference]: Start difference. First operand 2117 states and 3574 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 05:38:42,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:42,380 INFO L93 Difference]: Finished difference Result 5011 states and 8531 transitions. [2023-12-25 05:38:42,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:42,380 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 05:38:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:42,398 INFO L225 Difference]: With dead ends: 5011 [2023-12-25 05:38:42,398 INFO L226 Difference]: Without dead ends: 3131 [2023-12-25 05:38:42,404 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 05:38:42,405 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 101 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:42,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1016 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:42,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2023-12-25 05:38:42,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 3121. [2023-12-25 05:38:42,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 2471 states have (on average 1.6187778227438283) internal successors, (4000), 2482 states have internal predecessors, (4000), 590 states have call successors, (590), 51 states have call predecessors, (590), 59 states have return successors, (726), 591 states have call predecessors, (726), 588 states have call successors, (726) [2023-12-25 05:38:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 5316 transitions. [2023-12-25 05:38:42,562 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 5316 transitions. Word has length 162 [2023-12-25 05:38:42,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:42,562 INFO L495 AbstractCegarLoop]: Abstraction has 3121 states and 5316 transitions. [2023-12-25 05:38:42,562 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 05:38:42,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 5316 transitions. [2023-12-25 05:38:42,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-25 05:38:42,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:42,582 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 05:38:42,590 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 05:38:42,790 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 05:38:42,790 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:42,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:42,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1991131409, now seen corresponding path program 1 times [2023-12-25 05:38:42,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:42,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77638706] [2023-12-25 05:38:42,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:42,792 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 05:38:42,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:42,793 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 05:38:42,800 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 05:38:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:43,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:43,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:43,058 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 05:38:43,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:43,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:43,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77638706] [2023-12-25 05:38:43,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77638706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:43,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:43,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:43,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013025531] [2023-12-25 05:38:43,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:43,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:43,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:43,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:43,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:43,061 INFO L87 Difference]: Start difference. First operand 3121 states and 5316 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 05:38:43,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:43,295 INFO L93 Difference]: Finished difference Result 7281 states and 12531 transitions. [2023-12-25 05:38:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:43,295 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 05:38:43,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:43,321 INFO L225 Difference]: With dead ends: 7281 [2023-12-25 05:38:43,321 INFO L226 Difference]: Without dead ends: 4649 [2023-12-25 05:38:43,330 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 05:38:43,331 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 99 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:43,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1010 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:43,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4649 states. [2023-12-25 05:38:43,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4649 to 4639. [2023-12-25 05:38:43,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 3743 states have (on average 1.6248998129842371) internal successors, (6082), 3754 states have internal predecessors, (6082), 836 states have call successors, (836), 51 states have call predecessors, (836), 59 states have return successors, (1056), 837 states have call predecessors, (1056), 834 states have call successors, (1056) [2023-12-25 05:38:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7974 transitions. [2023-12-25 05:38:43,677 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7974 transitions. Word has length 163 [2023-12-25 05:38:43,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:43,678 INFO L495 AbstractCegarLoop]: Abstraction has 4639 states and 7974 transitions. [2023-12-25 05:38:43,679 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 05:38:43,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7974 transitions. [2023-12-25 05:38:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-25 05:38:43,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:43,708 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 05:38:43,719 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 05:38:43,917 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 05:38:43,917 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:43,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:43,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2062210932, now seen corresponding path program 1 times [2023-12-25 05:38:43,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:43,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787435181] [2023-12-25 05:38:43,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:43,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:38:43,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:43,920 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 05:38:43,921 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 05:38:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:44,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:44,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:44,223 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 05:38:44,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:44,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:44,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787435181] [2023-12-25 05:38:44,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787435181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:44,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:44,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:44,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454606864] [2023-12-25 05:38:44,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:44,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:44,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:44,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:44,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:44,225 INFO L87 Difference]: Start difference. First operand 4639 states and 7974 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 05:38:44,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:44,559 INFO L93 Difference]: Finished difference Result 10809 states and 18765 transitions. [2023-12-25 05:38:44,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:44,560 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 05:38:44,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:44,617 INFO L225 Difference]: With dead ends: 10809 [2023-12-25 05:38:44,617 INFO L226 Difference]: Without dead ends: 7071 [2023-12-25 05:38:44,631 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 05:38:44,631 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 97 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:44,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1010 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:38:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2023-12-25 05:38:45,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7061. [2023-12-25 05:38:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 5807 states have (on average 1.6290683657654554) internal successors, (9460), 5818 states have internal predecessors, (9460), 1194 states have call successors, (1194), 51 states have call predecessors, (1194), 59 states have return successors, (1554), 1195 states have call predecessors, (1554), 1192 states have call successors, (1554) [2023-12-25 05:38:45,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 12208 transitions. [2023-12-25 05:38:45,114 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 12208 transitions. Word has length 164 [2023-12-25 05:38:45,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:45,114 INFO L495 AbstractCegarLoop]: Abstraction has 7061 states and 12208 transitions. [2023-12-25 05:38:45,114 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 05:38:45,115 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 12208 transitions. [2023-12-25 05:38:45,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-25 05:38:45,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:45,152 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 05:38:45,162 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 (17)] Ended with exit code 0 [2023-12-25 05:38:45,360 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 05:38:45,360 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:45,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:45,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1387442261, now seen corresponding path program 1 times [2023-12-25 05:38:45,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:45,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151158762] [2023-12-25 05:38:45,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:45,362 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 05:38:45,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:45,363 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 05:38:45,400 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 05:38:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:45,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:45,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:45,649 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 05:38:45,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:45,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:45,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151158762] [2023-12-25 05:38:45,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151158762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:45,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:45,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:45,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741252395] [2023-12-25 05:38:45,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:45,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:45,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:45,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:45,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:45,652 INFO L87 Difference]: Start difference. First operand 7061 states and 12208 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 05:38:46,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:46,133 INFO L93 Difference]: Finished difference Result 16705 states and 29103 transitions. [2023-12-25 05:38:46,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:46,134 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 05:38:46,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:46,177 INFO L225 Difference]: With dead ends: 16705 [2023-12-25 05:38:46,178 INFO L226 Difference]: Without dead ends: 11143 [2023-12-25 05:38:46,196 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 05:38:46,199 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 95 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:46,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1018 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:46,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11143 states. [2023-12-25 05:38:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11143 to 11133. [2023-12-25 05:38:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11133 states, 9127 states have (on average 1.618713706584858) internal successors, (14774), 9138 states have internal predecessors, (14774), 1946 states have call successors, (1946), 51 states have call predecessors, (1946), 59 states have return successors, (2550), 1947 states have call predecessors, (2550), 1944 states have call successors, (2550) [2023-12-25 05:38:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11133 states to 11133 states and 19270 transitions. [2023-12-25 05:38:46,925 INFO L78 Accepts]: Start accepts. Automaton has 11133 states and 19270 transitions. Word has length 165 [2023-12-25 05:38:46,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:46,925 INFO L495 AbstractCegarLoop]: Abstraction has 11133 states and 19270 transitions. [2023-12-25 05:38:46,926 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 05:38:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 11133 states and 19270 transitions. [2023-12-25 05:38:47,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-25 05:38:47,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:47,063 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:38:47,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-25 05:38:47,270 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 05:38:47,271 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:47,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:47,272 INFO L85 PathProgramCache]: Analyzing trace with hash -50488368, now seen corresponding path program 1 times [2023-12-25 05:38:47,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:47,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191491494] [2023-12-25 05:38:47,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:47,273 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 05:38:47,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:47,275 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 05:38:47,280 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 05:38:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:47,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:47,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:47,620 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 05:38:47,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:47,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:47,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191491494] [2023-12-25 05:38:47,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191491494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:47,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:47,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854952367] [2023-12-25 05:38:47,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:47,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:47,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:47,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:47,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:47,623 INFO L87 Difference]: Start difference. First operand 11133 states and 19270 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 05:38:48,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:48,287 INFO L93 Difference]: Finished difference Result 27315 states and 47515 transitions. [2023-12-25 05:38:48,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:48,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 166 [2023-12-25 05:38:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:48,380 INFO L225 Difference]: With dead ends: 27315 [2023-12-25 05:38:48,380 INFO L226 Difference]: Without dead ends: 18443 [2023-12-25 05:38:48,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 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 05:38:48,422 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 93 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:48,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1019 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:48,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18443 states. [2023-12-25 05:38:49,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18443 to 18433. [2023-12-25 05:38:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18433 states, 15215 states have (on average 1.6168255011501806) internal successors, (24600), 15226 states have internal predecessors, (24600), 3158 states have call successors, (3158), 51 states have call predecessors, (3158), 59 states have return successors, (4062), 3159 states have call predecessors, (4062), 3156 states have call successors, (4062) [2023-12-25 05:38:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18433 states to 18433 states and 31820 transitions. [2023-12-25 05:38:49,508 INFO L78 Accepts]: Start accepts. Automaton has 18433 states and 31820 transitions. Word has length 166 [2023-12-25 05:38:49,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:49,509 INFO L495 AbstractCegarLoop]: Abstraction has 18433 states and 31820 transitions. [2023-12-25 05:38:49,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 05:38:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 18433 states and 31820 transitions. [2023-12-25 05:38:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-25 05:38:49,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:49,588 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, 1] [2023-12-25 05:38:49,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-25 05:38:49,797 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 05:38:49,798 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:49,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:49,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2004027623, now seen corresponding path program 1 times [2023-12-25 05:38:49,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:49,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606307550] [2023-12-25 05:38:49,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:49,799 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 05:38:49,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:49,816 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 05:38:49,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:38:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:50,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:50,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:50,407 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 05:38:50,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:50,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:50,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606307550] [2023-12-25 05:38:50,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606307550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:50,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:50,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:50,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641704421] [2023-12-25 05:38:50,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:50,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:50,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:50,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:50,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:50,410 INFO L87 Difference]: Start difference. First operand 18433 states and 31820 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 05:38:51,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:51,830 INFO L93 Difference]: Finished difference Result 47489 states and 82413 transitions. [2023-12-25 05:38:51,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:51,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 167 [2023-12-25 05:38:51,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:52,121 INFO L225 Difference]: With dead ends: 47489 [2023-12-25 05:38:52,121 INFO L226 Difference]: Without dead ends: 32219 [2023-12-25 05:38:52,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 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 05:38:52,218 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 91 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:52,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1023 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:38:52,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32219 states. [2023-12-25 05:38:54,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32219 to 32209. [2023-12-25 05:38:54,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32209 states, 26585 states have (on average 1.6082001128455896) internal successors, (42754), 26596 states have internal predecessors, (42754), 5564 states have call successors, (5564), 51 states have call predecessors, (5564), 59 states have return successors, (7174), 5565 states have call predecessors, (7174), 5562 states have call successors, (7174) [2023-12-25 05:38:54,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32209 states to 32209 states and 55492 transitions. [2023-12-25 05:38:54,505 INFO L78 Accepts]: Start accepts. Automaton has 32209 states and 55492 transitions. Word has length 167 [2023-12-25 05:38:54,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:38:54,505 INFO L495 AbstractCegarLoop]: Abstraction has 32209 states and 55492 transitions. [2023-12-25 05:38:54,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 05:38:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 32209 states and 55492 transitions. [2023-12-25 05:38:54,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-25 05:38:54,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:38:54,637 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, 1, 1] [2023-12-25 05:38:54,651 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 05:38:54,846 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 05:38:54,846 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:38:54,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:38:54,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1102287407, now seen corresponding path program 1 times [2023-12-25 05:38:54,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:38:54,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774407457] [2023-12-25 05:38:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:38:54,847 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 05:38:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:38:54,849 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 05:38:54,886 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 05:38:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:38:55,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:38:55,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:38:55,137 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 05:38:55,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:38:55,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:38:55,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774407457] [2023-12-25 05:38:55,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774407457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:38:55,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:38:55,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:38:55,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898521565] [2023-12-25 05:38:55,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:38:55,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:38:55,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:38:55,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:38:55,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:38:55,140 INFO L87 Difference]: Start difference. First operand 32209 states and 55492 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (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 05:38:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:57,184 INFO L93 Difference]: Finished difference Result 85035 states and 147355 transitions. [2023-12-25 05:38:57,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:38:57,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (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 168 [2023-12-25 05:38:57,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:57,438 INFO L225 Difference]: With dead ends: 85035 [2023-12-25 05:38:57,438 INFO L226 Difference]: Without dead ends: 57271 [2023-12-25 05:38:57,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 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 05:38:57,536 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 89 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:57,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1013 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:38:57,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57271 states. [2023-12-25 05:39:00,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57271 to 57261. [2023-12-25 05:39:00,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57261 states, 47559 states have (on average 1.6044071574255137) internal successors, (76304), 47570 states have internal predecessors, (76304), 9642 states have call successors, (9642), 51 states have call predecessors, (9642), 59 states have return successors, (12606), 9643 states have call predecessors, (12606), 9640 states have call successors, (12606) [2023-12-25 05:39:00,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57261 states to 57261 states and 98552 transitions. [2023-12-25 05:39:00,700 INFO L78 Accepts]: Start accepts. Automaton has 57261 states and 98552 transitions. Word has length 168 [2023-12-25 05:39:00,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:39:00,700 INFO L495 AbstractCegarLoop]: Abstraction has 57261 states and 98552 transitions. [2023-12-25 05:39:00,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (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 05:39:00,701 INFO L276 IsEmpty]: Start isEmpty. Operand 57261 states and 98552 transitions. [2023-12-25 05:39:00,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-25 05:39:00,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:39:00,865 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, 1, 1, 1] [2023-12-25 05:39:00,873 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 05:39:01,065 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 05:39:01,066 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:39:01,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:39:01,066 INFO L85 PathProgramCache]: Analyzing trace with hash -487493381, now seen corresponding path program 1 times [2023-12-25 05:39:01,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:39:01,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295628685] [2023-12-25 05:39:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:39:01,067 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 05:39:01,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:39:01,069 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 05:39:01,081 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 05:39:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:39:01,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:39:01,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:39:01,337 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 05:39:01,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:39:01,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:39:01,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295628685] [2023-12-25 05:39:01,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295628685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:39:01,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:39:01,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:39:01,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793190391] [2023-12-25 05:39:01,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:39:01,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:39:01,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:39:01,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:39:01,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:39:01,339 INFO L87 Difference]: Start difference. First operand 57261 states and 98552 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (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 05:39:05,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:39:05,195 INFO L93 Difference]: Finished difference Result 155789 states and 268269 transitions. [2023-12-25 05:39:05,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:39:05,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (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 169 [2023-12-25 05:39:05,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:39:05,594 INFO L225 Difference]: With dead ends: 155789 [2023-12-25 05:39:05,595 INFO L226 Difference]: Without dead ends: 104515 [2023-12-25 05:39:05,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 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 05:39:05,696 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 87 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:39:05,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1015 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:39:05,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104515 states. [2023-12-25 05:39:10,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104515 to 104505. [2023-12-25 05:39:10,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104505 states, 87373 states have (on average 1.5992125713893308) internal successors, (139728), 87384 states have internal predecessors, (139728), 17072 states have call successors, (17072), 51 states have call predecessors, (17072), 59 states have return successors, (21632), 17073 states have call predecessors, (21632), 17070 states have call successors, (21632) [2023-12-25 05:39:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104505 states to 104505 states and 178432 transitions. [2023-12-25 05:39:10,644 INFO L78 Accepts]: Start accepts. Automaton has 104505 states and 178432 transitions. Word has length 169 [2023-12-25 05:39:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:39:10,645 INFO L495 AbstractCegarLoop]: Abstraction has 104505 states and 178432 transitions. [2023-12-25 05:39:10,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (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 05:39:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 104505 states and 178432 transitions. [2023-12-25 05:39:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-25 05:39:10,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:39:10,903 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, 1, 1, 1, 1] [2023-12-25 05:39:10,910 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 05:39:11,103 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 05:39:11,104 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:39:11,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:39:11,105 INFO L85 PathProgramCache]: Analyzing trace with hash -939779727, now seen corresponding path program 1 times [2023-12-25 05:39:11,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:39:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743384197] [2023-12-25 05:39:11,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:39:11,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:39:11,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:39:11,107 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 05:39:11,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:39:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:39:11,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:39:11,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:39:11,923 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 05:39:11,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:39:11,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:39:11,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743384197] [2023-12-25 05:39:11,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743384197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:39:11,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:39:11,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:39:11,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181489996] [2023-12-25 05:39:11,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:39:11,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:39:11,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:39:11,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:39:11,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:39:11,926 INFO L87 Difference]: Start difference. First operand 104505 states and 178432 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 05:39:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:39:18,291 INFO L93 Difference]: Finished difference Result 194819 states and 333506 transitions. [2023-12-25 05:39:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:39:18,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 170 [2023-12-25 05:39:18,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:39:19,066 INFO L225 Difference]: With dead ends: 194819 [2023-12-25 05:39:19,066 INFO L226 Difference]: Without dead ends: 194413 [2023-12-25 05:39:19,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 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 05:39:19,150 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 85 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:39:19,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1013 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:39:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194413 states. [2023-12-25 05:39:28,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194413 to 194403. [2023-12-25 05:39:28,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194403 states, 163673 states have (on average 1.5924923475466326) internal successors, (260648), 163684 states have internal predecessors, (260648), 30670 states have call successors, (30670), 51 states have call predecessors, (30670), 59 states have return successors, (39414), 30671 states have call predecessors, (39414), 30668 states have call successors, (39414) [2023-12-25 05:39:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194403 states to 194403 states and 330732 transitions. [2023-12-25 05:39:29,419 INFO L78 Accepts]: Start accepts. Automaton has 194403 states and 330732 transitions. Word has length 170 [2023-12-25 05:39:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:39:29,419 INFO L495 AbstractCegarLoop]: Abstraction has 194403 states and 330732 transitions. [2023-12-25 05:39:29,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 05:39:29,419 INFO L276 IsEmpty]: Start isEmpty. Operand 194403 states and 330732 transitions. [2023-12-25 05:39:30,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-25 05:39:30,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:39:30,280 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, 1, 1, 1, 1, 1] [2023-12-25 05:39:30,287 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 05:39:30,481 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 05:39:30,482 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:39:30,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:39:30,483 INFO L85 PathProgramCache]: Analyzing trace with hash -730748294, now seen corresponding path program 1 times [2023-12-25 05:39:30,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:39:30,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014980606] [2023-12-25 05:39:30,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:39:30,484 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 05:39:30,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:39:30,486 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 05:39:30,488 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 05:39:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:39:30,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:39:30,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:39:30,900 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 05:39:30,900 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:39:31,201 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 05:39:31,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:39:31,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014980606] [2023-12-25 05:39:31,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014980606] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:39:31,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:39:31,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:39:31,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455225257] [2023-12-25 05:39:31,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:39:31,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:39:31,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:39:31,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:39:31,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:39:31,204 INFO L87 Difference]: Start difference. First operand 194403 states and 330732 transitions. Second operand has 16 states, 16 states have (on average 11.8125) internal successors, (189), 14 states have internal predecessors, (189), 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 05:39:44,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:39:44,158 INFO L93 Difference]: Finished difference Result 285846 states and 486541 transitions. [2023-12-25 05:39:44,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:39:44,159 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.8125) internal successors, (189), 14 states have internal predecessors, (189), 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 171 [2023-12-25 05:39:44,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:39:46,012 INFO L225 Difference]: With dead ends: 285846 [2023-12-25 05:39:46,013 INFO L226 Difference]: Without dead ends: 285647 [2023-12-25 05:39:46,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 329 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 05:39:46,149 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1612 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 3548 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 3912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 3548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:39:46,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 2077 Invalid, 3912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 3548 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:39:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285647 states. [2023-12-25 05:39:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285647 to 194405. [2023-12-25 05:39:58,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194405 states, 163675 states have (on average 1.5924851076829083) internal successors, (260650), 163685 states have internal predecessors, (260650), 30670 states have call successors, (30670), 51 states have call predecessors, (30670), 59 states have return successors, (39414), 30672 states have call predecessors, (39414), 30668 states have call successors, (39414) [2023-12-25 05:39:59,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194405 states to 194405 states and 330734 transitions. [2023-12-25 05:39:59,323 INFO L78 Accepts]: Start accepts. Automaton has 194405 states and 330734 transitions. Word has length 171 [2023-12-25 05:39:59,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:39:59,324 INFO L495 AbstractCegarLoop]: Abstraction has 194405 states and 330734 transitions. [2023-12-25 05:39:59,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.8125) internal successors, (189), 14 states have internal predecessors, (189), 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 05:39:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 194405 states and 330734 transitions. [2023-12-25 05:40:00,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-25 05:40:00,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:40:00,175 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, 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 05:40:00,182 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 05:40:00,376 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 05:40:00,376 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:40:00,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:40:00,377 INFO L85 PathProgramCache]: Analyzing trace with hash -957995760, now seen corresponding path program 1 times [2023-12-25 05:40:00,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:40:00,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794029338] [2023-12-25 05:40:00,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:40:00,377 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 05:40:00,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:40:00,381 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 05:40:00,413 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 05:40:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:40:00,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:40:00,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:40:00,690 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:40:00,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:40:00,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:40:00,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794029338] [2023-12-25 05:40:00,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794029338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:40:00,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:40:00,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:40:00,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455978277] [2023-12-25 05:40:00,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:40:00,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:40:00,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:40:00,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:40:00,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:40:00,693 INFO L87 Difference]: Start difference. First operand 194405 states and 330734 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:40:08,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:40:08,550 INFO L93 Difference]: Finished difference Result 289016 states and 491781 transitions. [2023-12-25 05:40:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:40:08,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2023-12-25 05:40:08,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:40:09,622 INFO L225 Difference]: With dead ends: 289016 [2023-12-25 05:40:09,622 INFO L226 Difference]: Without dead ends: 191816 [2023-12-25 05:40:09,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 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 05:40:09,833 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 10 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:40:09,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1981 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:40:09,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191816 states. [2023-12-25 05:40:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191816 to 191814. [2023-12-25 05:40:19,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191814 states, 161537 states have (on average 1.5933315587141026) internal successors, (257382), 161434 states have internal predecessors, (257382), 30221 states have call successors, (30221), 50 states have call predecessors, (30221), 55 states have return successors, (37759), 30333 states have call predecessors, (37759), 30219 states have call successors, (37759) [2023-12-25 05:40:20,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191814 states to 191814 states and 325362 transitions. [2023-12-25 05:40:20,574 INFO L78 Accepts]: Start accepts. Automaton has 191814 states and 325362 transitions. Word has length 171 [2023-12-25 05:40:20,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:40:20,575 INFO L495 AbstractCegarLoop]: Abstraction has 191814 states and 325362 transitions. [2023-12-25 05:40:20,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:40:20,575 INFO L276 IsEmpty]: Start isEmpty. Operand 191814 states and 325362 transitions. [2023-12-25 05:40:21,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-25 05:40:21,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:40:21,050 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, 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 05:40:21,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:40:21,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:40:21,265 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:40:21,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:40:21,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1792607210, now seen corresponding path program 1 times [2023-12-25 05:40:21,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:40:21,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495222160] [2023-12-25 05:40:21,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:40:21,267 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 05:40:21,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:40:21,277 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:40:21,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:40:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:40:21,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:40:21,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:40:21,766 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-25 05:40:21,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:40:21,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:40:21,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495222160] [2023-12-25 05:40:21,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495222160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:40:21,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:40:21,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:40:21,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232575891] [2023-12-25 05:40:21,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:40:21,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:40:21,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:40:21,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:40:21,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:40:21,769 INFO L87 Difference]: Start difference. First operand 191814 states and 325362 transitions. Second operand has 9 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 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)