/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_spec1_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:28:50,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:28:50,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:28:50,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:28:50,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:28:50,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:28:50,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:28:50,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:28:50,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:28:50,318 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:28:50,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:28:50,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:28:50,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:28:50,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:28:50,320 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:28:50,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:28:50,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:28:50,321 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:28:50,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:28:50,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:28:50,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:28:50,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:28:50,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:28:50,323 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:28:50,323 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:28:50,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:28:50,324 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:28:50,324 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:28:50,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:28:50,324 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:28:50,325 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:28:50,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:28:50,325 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:28:50,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:28:50,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:28:50,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:28:50,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:28:50,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:28:50,326 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:28:50,326 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:28:50,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:28:50,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:28:50,326 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:28:50,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:28:50,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:28:50,327 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:28:50,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:28:50,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:28:50,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:28:50,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:28:50,571 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:28:50,572 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:28:50,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product22.cil.c [2023-12-16 17:28:51,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:28:52,077 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:28:52,078 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product22.cil.c [2023-12-16 17:28:52,104 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/101dc5217/9f201952f2464971983cc3e7b6f81b10/FLAG28cb9430c [2023-12-16 17:28:52,124 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/101dc5217/9f201952f2464971983cc3e7b6f81b10 [2023-12-16 17:28:52,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:28:52,129 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:28:52,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:28:52,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:28:52,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:28:52,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:28:52" (1/1) ... [2023-12-16 17:28:52,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e97f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:52, skipping insertion in model container [2023-12-16 17:28:52,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:28:52" (1/1) ... [2023-12-16 17:28:52,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:28:52,616 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_spec1_product22.cil.c[33239,33252] [2023-12-16 17:28:52,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:28:52,709 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:28:52,736 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:28:52,791 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_spec1_product22.cil.c[33239,33252] [2023-12-16 17:28:52,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:28:52,863 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:28:52,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-16 17:28:52,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [414] [2023-12-16 17:28:52,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [538] [2023-12-16 17:28:52,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [767] [2023-12-16 17:28:52,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [784] [2023-12-16 17:28:52,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1189] [2023-12-16 17:28:52,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1227] [2023-12-16 17:28:52,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1257] [2023-12-16 17:28:52,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1557] [2023-12-16 17:28:52,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1566] [2023-12-16 17:28:52,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2637] [2023-12-16 17:28:52,934 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_spec1_product22.cil.c[33239,33252] [2023-12-16 17:28:52,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:28:53,041 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:28:53,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53 WrapperNode [2023-12-16 17:28:53,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:28:53,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:28:53,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:28:53,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:28:53,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,206 INFO L138 Inliner]: procedures = 130, calls = 190, calls flagged for inlining = 59, calls inlined = 54, statements flattened = 962 [2023-12-16 17:28:53,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:28:53,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:28:53,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:28:53,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:28:53,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,227 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,266 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]. [2023-12-16 17:28:53,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:28:53,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:28:53,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:28:53,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:28:53,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (1/1) ... [2023-12-16 17:28:53,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:28:53,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:28:53,373 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) [2023-12-16 17:28:53,422 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 [2023-12-16 17:28:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-16 17:28:53,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-16 17:28:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-16 17:28:53,434 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-16 17:28:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 17:28:53,434 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 17:28:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 17:28:53,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 17:28:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 17:28:53,436 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 17:28:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-16 17:28:53,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-16 17:28:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 17:28:53,438 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 17:28:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 17:28:53,438 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 17:28:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-16 17:28:53,438 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-16 17:28:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 17:28:53,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 17:28:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:28:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 17:28:53,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 17:28:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 17:28:53,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 17:28:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 17:28:53,439 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 17:28:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:28:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:28:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:28:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:28:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 17:28:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 17:28:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-16 17:28:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-16 17:28:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 17:28:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 17:28:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 17:28:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 17:28:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 17:28:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 17:28:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:28:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:28:53,660 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:28:53,662 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:28:54,444 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:28:54,532 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:28:54,532 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:28:54,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:28:54 BoogieIcfgContainer [2023-12-16 17:28:54,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:28:54,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:28:54,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:28:54,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:28:54,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:28:52" (1/3) ... [2023-12-16 17:28:54,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7951c936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:28:54, skipping insertion in model container [2023-12-16 17:28:54,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:28:53" (2/3) ... [2023-12-16 17:28:54,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7951c936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:28:54, skipping insertion in model container [2023-12-16 17:28:54,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:28:54" (3/3) ... [2023-12-16 17:28:54,542 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product22.cil.c [2023-12-16 17:28:54,560 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:28:54,560 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:28:54,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:28:54,616 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;@6af01f07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:28:54,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:28:54,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 224 states have (on average 1.59375) internal successors, (357), 228 states have internal predecessors, (357), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-16 17:28:54,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-16 17:28:54,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:54,640 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:28:54,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:54,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:54,646 INFO L85 PathProgramCache]: Analyzing trace with hash -73054878, now seen corresponding path program 1 times [2023-12-16 17:28:54,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:54,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147185672] [2023-12-16 17:28:54,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:54,659 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 [2023-12-16 17:28:54,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:54,676 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) [2023-12-16 17:28:54,725 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 [2023-12-16 17:28:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:55,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:28:55,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 17:28:55,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:55,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:55,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147185672] [2023-12-16 17:28:55,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147185672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:55,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:55,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:28:55,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049420287] [2023-12-16 17:28:55,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:55,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:28:55,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:55,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:28:55,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:28:55,108 INFO L87 Difference]: Start difference. First operand has 294 states, 224 states have (on average 1.59375) internal successors, (357), 228 states have internal predecessors, (357), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:55,244 INFO L93 Difference]: Finished difference Result 439 states and 670 transitions. [2023-12-16 17:28:55,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:28:55,247 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 83 [2023-12-16 17:28:55,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:55,264 INFO L225 Difference]: With dead ends: 439 [2023-12-16 17:28:55,264 INFO L226 Difference]: Without dead ends: 291 [2023-12-16 17:28:55,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:28:55,275 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:55,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 437 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:55,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-12-16 17:28:55,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2023-12-16 17:28:55,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 222 states have (on average 1.5765765765765767) internal successors, (350), 225 states have internal predecessors, (350), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-16 17:28:55,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 449 transitions. [2023-12-16 17:28:55,354 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 449 transitions. Word has length 83 [2023-12-16 17:28:55,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:55,356 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 449 transitions. [2023-12-16 17:28:55,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:55,356 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 449 transitions. [2023-12-16 17:28:55,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 17:28:55,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:55,365 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:28:55,371 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 [2023-12-16 17:28:55,572 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 [2023-12-16 17:28:55,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:55,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:55,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1612635618, now seen corresponding path program 1 times [2023-12-16 17:28:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:55,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530113489] [2023-12-16 17:28:55,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:55,575 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 [2023-12-16 17:28:55,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:55,576 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) [2023-12-16 17:28:55,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:28:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:55,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:28:55,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:55,921 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:28:55,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:55,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:55,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530113489] [2023-12-16 17:28:55,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530113489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:55,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:55,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:55,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278216419] [2023-12-16 17:28:55,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:55,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:55,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:55,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:55,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:55,927 INFO L87 Difference]: Start difference. First operand 291 states and 449 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:56,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:56,058 INFO L93 Difference]: Finished difference Result 577 states and 892 transitions. [2023-12-16 17:28:56,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:56,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 84 [2023-12-16 17:28:56,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:56,061 INFO L225 Difference]: With dead ends: 577 [2023-12-16 17:28:56,061 INFO L226 Difference]: Without dead ends: 293 [2023-12-16 17:28:56,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:56,063 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 8 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:56,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1689 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:56,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-16 17:28:56,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2023-12-16 17:28:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 223 states have (on average 1.5739910313901346) internal successors, (351), 227 states have internal predecessors, (351), 50 states have call successors, (50), 18 states have call predecessors, (50), 19 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2023-12-16 17:28:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 452 transitions. [2023-12-16 17:28:56,079 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 452 transitions. Word has length 84 [2023-12-16 17:28:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:56,080 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 452 transitions. [2023-12-16 17:28:56,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:56,080 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 452 transitions. [2023-12-16 17:28:56,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:28:56,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:56,082 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-16 17:28:56,094 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 [2023-12-16 17:28:56,288 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 [2023-12-16 17:28:56,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:56,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:56,289 INFO L85 PathProgramCache]: Analyzing trace with hash 611425337, now seen corresponding path program 1 times [2023-12-16 17:28:56,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:56,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490261193] [2023-12-16 17:28:56,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:56,290 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 [2023-12-16 17:28:56,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:56,302 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) [2023-12-16 17:28:56,303 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 [2023-12-16 17:28:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:56,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:28:56,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:28:56,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:56,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:56,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490261193] [2023-12-16 17:28:56,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490261193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:56,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:56,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:56,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607085498] [2023-12-16 17:28:56,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:56,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:56,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:56,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:56,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:56,612 INFO L87 Difference]: Start difference. First operand 293 states and 452 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:56,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:56,718 INFO L93 Difference]: Finished difference Result 579 states and 896 transitions. [2023-12-16 17:28:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:56,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 85 [2023-12-16 17:28:56,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:56,721 INFO L225 Difference]: With dead ends: 579 [2023-12-16 17:28:56,721 INFO L226 Difference]: Without dead ends: 295 [2023-12-16 17:28:56,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:56,723 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 8 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1675 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 [2023-12-16 17:28:56,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1675 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:56,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-12-16 17:28:56,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2023-12-16 17:28:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 224 states have (on average 1.5714285714285714) internal successors, (352), 229 states have internal predecessors, (352), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2023-12-16 17:28:56,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 457 transitions. [2023-12-16 17:28:56,733 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 457 transitions. Word has length 85 [2023-12-16 17:28:56,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:56,734 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 457 transitions. [2023-12-16 17:28:56,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:56,734 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 457 transitions. [2023-12-16 17:28:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:28:56,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:56,735 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-16 17:28:56,743 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 [2023-12-16 17:28:56,941 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 [2023-12-16 17:28:56,941 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:56,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:56,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1670874466, now seen corresponding path program 1 times [2023-12-16 17:28:56,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:56,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812735354] [2023-12-16 17:28:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:56,943 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 [2023-12-16 17:28:56,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:56,989 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) [2023-12-16 17:28:56,996 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 [2023-12-16 17:28:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:57,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:28:57,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:57,227 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:28:57,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:57,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:57,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812735354] [2023-12-16 17:28:57,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812735354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:57,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:57,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:57,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249796530] [2023-12-16 17:28:57,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:57,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:57,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:57,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:57,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:57,229 INFO L87 Difference]: Start difference. First operand 295 states and 457 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:57,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:57,336 INFO L93 Difference]: Finished difference Result 571 states and 886 transitions. [2023-12-16 17:28:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:57,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2023-12-16 17:28:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:57,338 INFO L225 Difference]: With dead ends: 571 [2023-12-16 17:28:57,338 INFO L226 Difference]: Without dead ends: 295 [2023-12-16 17:28:57,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:57,340 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 8 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:57,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1689 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-12-16 17:28:57,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2023-12-16 17:28:57,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 224 states have (on average 1.5714285714285714) internal successors, (352), 229 states have internal predecessors, (352), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2023-12-16 17:28:57,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 456 transitions. [2023-12-16 17:28:57,349 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 456 transitions. Word has length 86 [2023-12-16 17:28:57,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:57,350 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 456 transitions. [2023-12-16 17:28:57,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:57,350 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 456 transitions. [2023-12-16 17:28:57,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:28:57,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:57,351 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:57,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 17:28:57,557 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 [2023-12-16 17:28:57,557 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:57,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:57,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2089006171, now seen corresponding path program 2 times [2023-12-16 17:28:57,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:57,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015326297] [2023-12-16 17:28:57,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:28:57,558 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 [2023-12-16 17:28:57,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:57,560 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) [2023-12-16 17:28:57,570 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 [2023-12-16 17:28:57,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 17:28:57,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:28:57,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:28:57,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:57,788 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-16 17:28:57,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:57,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:57,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015326297] [2023-12-16 17:28:57,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015326297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:57,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:57,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:28:57,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077209445] [2023-12-16 17:28:57,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:57,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:28:57,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:57,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:28:57,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:57,790 INFO L87 Difference]: Start difference. First operand 295 states and 456 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:57,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:57,827 INFO L93 Difference]: Finished difference Result 439 states and 664 transitions. [2023-12-16 17:28:57,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:28:57,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2023-12-16 17:28:57,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:57,829 INFO L225 Difference]: With dead ends: 439 [2023-12-16 17:28:57,829 INFO L226 Difference]: Without dead ends: 297 [2023-12-16 17:28:57,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:28:57,830 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 0 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:57,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 867 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:28:57,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-12-16 17:28:57,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2023-12-16 17:28:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 226 states have (on average 1.5663716814159292) internal successors, (354), 231 states have internal predecessors, (354), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2023-12-16 17:28:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 458 transitions. [2023-12-16 17:28:57,838 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 458 transitions. Word has length 87 [2023-12-16 17:28:57,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:57,839 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 458 transitions. [2023-12-16 17:28:57,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:28:57,839 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 458 transitions. [2023-12-16 17:28:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:28:57,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:57,840 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:57,846 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 (6)] Ended with exit code 0 [2023-12-16 17:28:58,044 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 [2023-12-16 17:28:58,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:58,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:58,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1957946857, now seen corresponding path program 1 times [2023-12-16 17:28:58,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:58,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555317277] [2023-12-16 17:28:58,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:58,046 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 [2023-12-16 17:28:58,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:58,047 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) [2023-12-16 17:28:58,049 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 [2023-12-16 17:28:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:58,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:28:58,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:28:58,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:58,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:58,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555317277] [2023-12-16 17:28:58,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555317277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:58,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:58,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:58,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944276757] [2023-12-16 17:28:58,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:58,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:58,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:58,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:58,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:58,299 INFO L87 Difference]: Start difference. First operand 297 states and 458 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:58,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:58,400 INFO L93 Difference]: Finished difference Result 577 states and 893 transitions. [2023-12-16 17:28:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:58,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2023-12-16 17:28:58,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:58,402 INFO L225 Difference]: With dead ends: 577 [2023-12-16 17:28:58,402 INFO L226 Difference]: Without dead ends: 299 [2023-12-16 17:28:58,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:58,404 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 6 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:58,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1691 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:58,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-12-16 17:28:58,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2023-12-16 17:28:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 227 states have (on average 1.5638766519823788) internal successors, (355), 233 states have internal predecessors, (355), 50 states have call successors, (50), 18 states have call predecessors, (50), 21 states have return successors, (56), 49 states have call predecessors, (56), 49 states have call successors, (56) [2023-12-16 17:28:58,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 461 transitions. [2023-12-16 17:28:58,412 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 461 transitions. Word has length 94 [2023-12-16 17:28:58,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:58,413 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 461 transitions. [2023-12-16 17:28:58,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 461 transitions. [2023-12-16 17:28:58,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 17:28:58,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:58,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:58,419 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 [2023-12-16 17:28:58,619 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 [2023-12-16 17:28:58,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:58,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2128193515, now seen corresponding path program 1 times [2023-12-16 17:28:58,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:58,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22147438] [2023-12-16 17:28:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:58,621 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 [2023-12-16 17:28:58,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:58,622 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) [2023-12-16 17:28:58,624 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 [2023-12-16 17:28:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:28:58,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:28:58,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:58,912 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:28:58,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:58,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:58,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22147438] [2023-12-16 17:28:58,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22147438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:58,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:58,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:58,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102091653] [2023-12-16 17:28:58,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:58,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:58,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:58,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:58,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:58,915 INFO L87 Difference]: Start difference. First operand 299 states and 461 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:59,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:59,037 INFO L93 Difference]: Finished difference Result 575 states and 888 transitions. [2023-12-16 17:28:59,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:59,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2023-12-16 17:28:59,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:59,040 INFO L225 Difference]: With dead ends: 575 [2023-12-16 17:28:59,040 INFO L226 Difference]: Without dead ends: 299 [2023-12-16 17:28:59,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:59,042 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 8 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:59,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1676 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-12-16 17:28:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2023-12-16 17:28:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 227 states have (on average 1.5638766519823788) internal successors, (355), 233 states have internal predecessors, (355), 50 states have call successors, (50), 18 states have call predecessors, (50), 21 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2023-12-16 17:28:59,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 460 transitions. [2023-12-16 17:28:59,055 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 460 transitions. Word has length 95 [2023-12-16 17:28:59,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:59,056 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 460 transitions. [2023-12-16 17:28:59,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:59,056 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 460 transitions. [2023-12-16 17:28:59,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:28:59,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:59,058 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:59,069 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 [2023-12-16 17:28:59,266 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 [2023-12-16 17:28:59,267 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:59,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash -159646336, now seen corresponding path program 2 times [2023-12-16 17:28:59,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:59,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225273575] [2023-12-16 17:28:59,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:28:59,268 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 [2023-12-16 17:28:59,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:59,270 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) [2023-12-16 17:28:59,271 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 [2023-12-16 17:28:59,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 17:28:59,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:28:59,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:28:59,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:28:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:28:59,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:28:59,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:28:59,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225273575] [2023-12-16 17:28:59,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225273575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:28:59,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:28:59,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:28:59,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325270773] [2023-12-16 17:28:59,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:28:59,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:28:59,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:28:59,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:28:59,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:28:59,564 INFO L87 Difference]: Start difference. First operand 299 states and 460 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:59,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:28:59,712 INFO L93 Difference]: Finished difference Result 577 states and 893 transitions. [2023-12-16 17:28:59,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:28:59,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 96 [2023-12-16 17:28:59,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:28:59,714 INFO L225 Difference]: With dead ends: 577 [2023-12-16 17:28:59,715 INFO L226 Difference]: Without dead ends: 301 [2023-12-16 17:28:59,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:28:59,717 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 6 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:28:59,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1678 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:28:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-12-16 17:28:59,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2023-12-16 17:28:59,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 228 states have (on average 1.5614035087719298) internal successors, (356), 235 states have internal predecessors, (356), 50 states have call successors, (50), 18 states have call predecessors, (50), 22 states have return successors, (59), 49 states have call predecessors, (59), 49 states have call successors, (59) [2023-12-16 17:28:59,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 465 transitions. [2023-12-16 17:28:59,729 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 465 transitions. Word has length 96 [2023-12-16 17:28:59,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:28:59,729 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 465 transitions. [2023-12-16 17:28:59,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:28:59,730 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 465 transitions. [2023-12-16 17:28:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:28:59,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:28:59,731 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:28:59,755 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 [2023-12-16 17:28:59,961 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 [2023-12-16 17:28:59,962 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:28:59,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:28:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash 789088144, now seen corresponding path program 1 times [2023-12-16 17:28:59,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:28:59,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703667334] [2023-12-16 17:28:59,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:28:59,963 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 [2023-12-16 17:28:59,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:28:59,965 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) [2023-12-16 17:28:59,966 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 [2023-12-16 17:29:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:00,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:00,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:00,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:00,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:00,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703667334] [2023-12-16 17:29:00,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703667334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:00,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:00,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:00,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563038974] [2023-12-16 17:29:00,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:00,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:00,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:00,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:00,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:00,179 INFO L87 Difference]: Start difference. First operand 301 states and 465 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:00,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:00,234 INFO L93 Difference]: Finished difference Result 632 states and 990 transitions. [2023-12-16 17:29:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:00,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2023-12-16 17:29:00,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:00,236 INFO L225 Difference]: With dead ends: 632 [2023-12-16 17:29:00,237 INFO L226 Difference]: Without dead ends: 357 [2023-12-16 17:29:00,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:00,238 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 109 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:00,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 831 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:00,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-12-16 17:29:00,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 352. [2023-12-16 17:29:00,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 268 states have (on average 1.578358208955224) internal successors, (423), 275 states have internal predecessors, (423), 61 states have call successors, (61), 18 states have call predecessors, (61), 22 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2023-12-16 17:29:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 556 transitions. [2023-12-16 17:29:00,282 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 556 transitions. Word has length 97 [2023-12-16 17:29:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:00,283 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 556 transitions. [2023-12-16 17:29:00,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 556 transitions. [2023-12-16 17:29:00,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 17:29:00,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:00,285 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:00,305 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 [2023-12-16 17:29:00,491 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 [2023-12-16 17:29:00,491 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:00,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:00,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1002389504, now seen corresponding path program 1 times [2023-12-16 17:29:00,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:00,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928423575] [2023-12-16 17:29:00,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:00,493 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 [2023-12-16 17:29:00,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:00,494 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) [2023-12-16 17:29:00,524 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 [2023-12-16 17:29:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:00,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:29:00,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:29:00,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:00,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:00,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928423575] [2023-12-16 17:29:00,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928423575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:00,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:00,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:29:00,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252992156] [2023-12-16 17:29:00,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:00,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:29:00,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:00,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:29:00,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:29:00,766 INFO L87 Difference]: Start difference. First operand 352 states and 556 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:29:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:00,846 INFO L93 Difference]: Finished difference Result 696 states and 1090 transitions. [2023-12-16 17:29:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:29:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 98 [2023-12-16 17:29:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:00,849 INFO L225 Difference]: With dead ends: 696 [2023-12-16 17:29:00,849 INFO L226 Difference]: Without dead ends: 368 [2023-12-16 17:29:00,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:29:00,851 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 410 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:00,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 888 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:29:00,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-16 17:29:00,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 360. [2023-12-16 17:29:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 275 states have (on average 1.56) internal successors, (429), 281 states have internal predecessors, (429), 61 states have call successors, (61), 20 states have call predecessors, (61), 23 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2023-12-16 17:29:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 558 transitions. [2023-12-16 17:29:00,869 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 558 transitions. Word has length 98 [2023-12-16 17:29:00,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:00,870 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 558 transitions. [2023-12-16 17:29:00,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:29:00,871 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 558 transitions. [2023-12-16 17:29:00,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 17:29:00,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:00,873 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:00,881 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 [2023-12-16 17:29:01,078 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 [2023-12-16 17:29:01,079 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:01,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:01,080 INFO L85 PathProgramCache]: Analyzing trace with hash 394870279, now seen corresponding path program 1 times [2023-12-16 17:29:01,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:01,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416907679] [2023-12-16 17:29:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:01,081 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 [2023-12-16 17:29:01,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:01,082 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) [2023-12-16 17:29:01,116 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 [2023-12-16 17:29:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:01,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:29:01,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:01,297 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:29:01,360 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:01,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:01,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416907679] [2023-12-16 17:29:01,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416907679] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:29:01,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:29:01,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 17:29:01,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267061774] [2023-12-16 17:29:01,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:29:01,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:29:01,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:01,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:29:01,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:29:01,363 INFO L87 Difference]: Start difference. First operand 360 states and 558 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:29:01,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:01,587 INFO L93 Difference]: Finished difference Result 847 states and 1365 transitions. [2023-12-16 17:29:01,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:29:01,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 99 [2023-12-16 17:29:01,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:01,591 INFO L225 Difference]: With dead ends: 847 [2023-12-16 17:29:01,591 INFO L226 Difference]: Without dead ends: 705 [2023-12-16 17:29:01,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:29:01,593 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 448 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:01,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1533 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:29:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2023-12-16 17:29:01,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 690. [2023-12-16 17:29:01,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 541 states have (on average 1.6062846580406653) internal successors, (869), 547 states have internal predecessors, (869), 125 states have call successors, (125), 20 states have call predecessors, (125), 23 states have return successors, (142), 124 states have call predecessors, (142), 124 states have call successors, (142) [2023-12-16 17:29:01,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1136 transitions. [2023-12-16 17:29:01,634 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1136 transitions. Word has length 99 [2023-12-16 17:29:01,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:01,635 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 1136 transitions. [2023-12-16 17:29:01,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:29:01,635 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1136 transitions. [2023-12-16 17:29:01,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:29:01,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:01,637 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:01,654 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 [2023-12-16 17:29:01,843 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 [2023-12-16 17:29:01,843 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:01,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:01,843 INFO L85 PathProgramCache]: Analyzing trace with hash -644051853, now seen corresponding path program 1 times [2023-12-16 17:29:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:01,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980021156] [2023-12-16 17:29:01,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:01,844 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 [2023-12-16 17:29:01,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:01,845 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) [2023-12-16 17:29:01,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:29:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:02,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:02,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:02,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:02,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:02,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980021156] [2023-12-16 17:29:02,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980021156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:02,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:02,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:02,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958180000] [2023-12-16 17:29:02,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:02,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:02,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:02,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:02,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:02,040 INFO L87 Difference]: Start difference. First operand 690 states and 1136 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:02,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:02,106 INFO L93 Difference]: Finished difference Result 1621 states and 2720 transitions. [2023-12-16 17:29:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:02,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2023-12-16 17:29:02,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:02,117 INFO L225 Difference]: With dead ends: 1621 [2023-12-16 17:29:02,117 INFO L226 Difference]: Without dead ends: 1007 [2023-12-16 17:29:02,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:02,121 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 103 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:02,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 864 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:02,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2023-12-16 17:29:02,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1002. [2023-12-16 17:29:02,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 789 states have (on average 1.623574144486692) internal successors, (1281), 795 states have internal predecessors, (1281), 189 states have call successors, (189), 20 states have call predecessors, (189), 23 states have return successors, (216), 188 states have call predecessors, (216), 188 states have call successors, (216) [2023-12-16 17:29:02,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1686 transitions. [2023-12-16 17:29:02,163 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1686 transitions. Word has length 102 [2023-12-16 17:29:02,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:02,163 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1686 transitions. [2023-12-16 17:29:02,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:02,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1686 transitions. [2023-12-16 17:29:02,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 17:29:02,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:02,167 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-16 17:29:02,174 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 [2023-12-16 17:29:02,372 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 [2023-12-16 17:29:02,372 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:02,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:02,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1620360160, now seen corresponding path program 1 times [2023-12-16 17:29:02,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:02,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261119711] [2023-12-16 17:29:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:02,373 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 [2023-12-16 17:29:02,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:02,374 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) [2023-12-16 17:29:02,410 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 [2023-12-16 17:29:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:02,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:02,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:02,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:02,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:02,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261119711] [2023-12-16 17:29:02,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261119711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:02,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:02,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:02,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675754026] [2023-12-16 17:29:02,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:02,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:02,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:02,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:02,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:02,577 INFO L87 Difference]: Start difference. First operand 1002 states and 1686 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:02,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:02,723 INFO L93 Difference]: Finished difference Result 2385 states and 4037 transitions. [2023-12-16 17:29:02,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:02,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2023-12-16 17:29:02,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:02,730 INFO L225 Difference]: With dead ends: 2385 [2023-12-16 17:29:02,730 INFO L226 Difference]: Without dead ends: 1509 [2023-12-16 17:29:02,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:02,734 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 101 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:02,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 858 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:29:02,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2023-12-16 17:29:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1504. [2023-12-16 17:29:02,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1196 states have (on average 1.6270903010033444) internal successors, (1946), 1202 states have internal predecessors, (1946), 284 states have call successors, (284), 20 states have call predecessors, (284), 23 states have return successors, (311), 283 states have call predecessors, (311), 283 states have call successors, (311) [2023-12-16 17:29:02,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2541 transitions. [2023-12-16 17:29:02,852 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2541 transitions. Word has length 103 [2023-12-16 17:29:02,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:02,853 INFO L495 AbstractCegarLoop]: Abstraction has 1504 states and 2541 transitions. [2023-12-16 17:29:02,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:02,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2541 transitions. [2023-12-16 17:29:02,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 17:29:02,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:02,858 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-16 17:29:02,862 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 [2023-12-16 17:29:03,062 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 [2023-12-16 17:29:03,062 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:03,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1290546949, now seen corresponding path program 1 times [2023-12-16 17:29:03,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:03,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395833555] [2023-12-16 17:29:03,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:03,063 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 [2023-12-16 17:29:03,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:03,065 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) [2023-12-16 17:29:03,067 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 [2023-12-16 17:29:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:03,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:03,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:03,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:03,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:03,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395833555] [2023-12-16 17:29:03,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395833555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:03,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:03,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:03,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141943201] [2023-12-16 17:29:03,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:03,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:03,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:03,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:03,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:03,313 INFO L87 Difference]: Start difference. First operand 1504 states and 2541 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:03,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:03,399 INFO L93 Difference]: Finished difference Result 3520 states and 5995 transitions. [2023-12-16 17:29:03,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:03,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2023-12-16 17:29:03,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:03,409 INFO L225 Difference]: With dead ends: 3520 [2023-12-16 17:29:03,410 INFO L226 Difference]: Without dead ends: 2268 [2023-12-16 17:29:03,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:03,414 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 99 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:03,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 850 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:03,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2023-12-16 17:29:03,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 2263. [2023-12-16 17:29:03,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 1832 states have (on average 1.630458515283843) internal successors, (2987), 1838 states have internal predecessors, (2987), 407 states have call successors, (407), 20 states have call predecessors, (407), 23 states have return successors, (450), 406 states have call predecessors, (450), 406 states have call successors, (450) [2023-12-16 17:29:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 3844 transitions. [2023-12-16 17:29:03,505 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 3844 transitions. Word has length 104 [2023-12-16 17:29:03,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:03,506 INFO L495 AbstractCegarLoop]: Abstraction has 2263 states and 3844 transitions. [2023-12-16 17:29:03,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 3844 transitions. [2023-12-16 17:29:03,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 17:29:03,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:03,511 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:03,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-16 17:29:03,716 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 [2023-12-16 17:29:03,716 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:03,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:03,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1573035199, now seen corresponding path program 1 times [2023-12-16 17:29:03,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:03,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396663186] [2023-12-16 17:29:03,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:03,717 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 [2023-12-16 17:29:03,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:03,718 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) [2023-12-16 17:29:03,724 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 [2023-12-16 17:29:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:03,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:03,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:03,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:03,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:03,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396663186] [2023-12-16 17:29:03,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396663186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:03,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:03,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:03,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931929544] [2023-12-16 17:29:03,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:03,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:03,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:03,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:03,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:03,987 INFO L87 Difference]: Start difference. First operand 2263 states and 3844 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:04,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:04,103 INFO L93 Difference]: Finished difference Result 5284 states and 9042 transitions. [2023-12-16 17:29:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:04,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2023-12-16 17:29:04,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:04,118 INFO L225 Difference]: With dead ends: 5284 [2023-12-16 17:29:04,119 INFO L226 Difference]: Without dead ends: 3479 [2023-12-16 17:29:04,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:04,125 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 97 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:04,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 850 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:04,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2023-12-16 17:29:04,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3474. [2023-12-16 17:29:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 2864 states have (on average 1.6326815642458101) internal successors, (4676), 2870 states have internal predecessors, (4676), 586 states have call successors, (586), 20 states have call predecessors, (586), 23 states have return successors, (655), 585 states have call predecessors, (655), 585 states have call successors, (655) [2023-12-16 17:29:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 5917 transitions. [2023-12-16 17:29:04,264 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 5917 transitions. Word has length 105 [2023-12-16 17:29:04,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:04,265 INFO L495 AbstractCegarLoop]: Abstraction has 3474 states and 5917 transitions. [2023-12-16 17:29:04,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:04,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 5917 transitions. [2023-12-16 17:29:04,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 17:29:04,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:04,272 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-16 17:29:04,290 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 [2023-12-16 17:29:04,478 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 [2023-12-16 17:29:04,478 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:04,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:04,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1757775191, now seen corresponding path program 1 times [2023-12-16 17:29:04,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:04,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556784582] [2023-12-16 17:29:04,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:04,479 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 [2023-12-16 17:29:04,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:04,480 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) [2023-12-16 17:29:04,515 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 [2023-12-16 17:29:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:04,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:04,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:04,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:04,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:04,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556784582] [2023-12-16 17:29:04,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556784582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:04,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:04,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:04,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735456001] [2023-12-16 17:29:04,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:04,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:04,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:04,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:04,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:04,681 INFO L87 Difference]: Start difference. First operand 3474 states and 5917 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:04,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:04,898 INFO L93 Difference]: Finished difference Result 8232 states and 14089 transitions. [2023-12-16 17:29:04,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:04,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2023-12-16 17:29:04,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:04,925 INFO L225 Difference]: With dead ends: 8232 [2023-12-16 17:29:04,925 INFO L226 Difference]: Without dead ends: 5515 [2023-12-16 17:29:04,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:04,934 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 95 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:04,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 862 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5515 states. [2023-12-16 17:29:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5515 to 5510. [2023-12-16 17:29:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5510 states, 4524 states have (on average 1.6209106984969055) internal successors, (7333), 4530 states have internal predecessors, (7333), 962 states have call successors, (962), 20 states have call predecessors, (962), 23 states have return successors, (1075), 961 states have call predecessors, (1075), 961 states have call successors, (1075) [2023-12-16 17:29:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5510 states to 5510 states and 9370 transitions. [2023-12-16 17:29:05,271 INFO L78 Accepts]: Start accepts. Automaton has 5510 states and 9370 transitions. Word has length 106 [2023-12-16 17:29:05,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:05,272 INFO L495 AbstractCegarLoop]: Abstraction has 5510 states and 9370 transitions. [2023-12-16 17:29:05,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:05,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5510 states and 9370 transitions. [2023-12-16 17:29:05,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 17:29:05,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:05,282 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-16 17:29:05,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 17:29:05,487 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 [2023-12-16 17:29:05,487 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:05,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:05,488 INFO L85 PathProgramCache]: Analyzing trace with hash 308783387, now seen corresponding path program 1 times [2023-12-16 17:29:05,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:05,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046624361] [2023-12-16 17:29:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:05,489 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 [2023-12-16 17:29:05,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:05,490 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) [2023-12-16 17:29:05,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:29:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:05,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:05,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:05,695 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:05,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:05,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:05,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046624361] [2023-12-16 17:29:05,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046624361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:05,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:05,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:05,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409554167] [2023-12-16 17:29:05,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:05,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:05,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:05,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:05,697 INFO L87 Difference]: Start difference. First operand 5510 states and 9370 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:05,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:05,995 INFO L93 Difference]: Finished difference Result 13537 states and 23167 transitions. [2023-12-16 17:29:05,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:05,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2023-12-16 17:29:05,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:06,043 INFO L225 Difference]: With dead ends: 13537 [2023-12-16 17:29:06,043 INFO L226 Difference]: Without dead ends: 9165 [2023-12-16 17:29:06,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:06,057 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 93 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:06,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 858 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:06,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9165 states. [2023-12-16 17:29:06,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9165 to 9160. [2023-12-16 17:29:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9160 states, 7568 states have (on average 1.6181289640591967) internal successors, (12246), 7574 states have internal predecessors, (12246), 1568 states have call successors, (1568), 20 states have call predecessors, (1568), 23 states have return successors, (1759), 1567 states have call predecessors, (1759), 1567 states have call successors, (1759) [2023-12-16 17:29:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9160 states to 9160 states and 15573 transitions. [2023-12-16 17:29:06,456 INFO L78 Accepts]: Start accepts. Automaton has 9160 states and 15573 transitions. Word has length 107 [2023-12-16 17:29:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:06,456 INFO L495 AbstractCegarLoop]: Abstraction has 9160 states and 15573 transitions. [2023-12-16 17:29:06,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand 9160 states and 15573 transitions. [2023-12-16 17:29:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 17:29:06,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:06,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-16 17:29:06,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:29:06,673 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 [2023-12-16 17:29:06,674 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:06,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:06,675 INFO L85 PathProgramCache]: Analyzing trace with hash -48347429, now seen corresponding path program 1 times [2023-12-16 17:29:06,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:06,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488840889] [2023-12-16 17:29:06,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:06,675 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 [2023-12-16 17:29:06,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:06,687 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) [2023-12-16 17:29:06,707 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 [2023-12-16 17:29:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:06,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:06,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:06,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:06,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:06,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488840889] [2023-12-16 17:29:06,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488840889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:06,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:06,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:06,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213031990] [2023-12-16 17:29:06,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:06,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:06,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:06,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:06,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:06,967 INFO L87 Difference]: Start difference. First operand 9160 states and 15573 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:07,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:07,530 INFO L93 Difference]: Finished difference Result 23624 states and 40335 transitions. [2023-12-16 17:29:07,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:07,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2023-12-16 17:29:07,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:07,587 INFO L225 Difference]: With dead ends: 23624 [2023-12-16 17:29:07,588 INFO L226 Difference]: Without dead ends: 16053 [2023-12-16 17:29:07,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:07,615 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 91 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:07,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 860 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16053 states. [2023-12-16 17:29:08,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16053 to 16048. [2023-12-16 17:29:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16048 states, 13253 states have (on average 1.6089187353806684) internal successors, (21323), 13259 states have internal predecessors, (21323), 2771 states have call successors, (2771), 20 states have call predecessors, (2771), 23 states have return successors, (3106), 2770 states have call predecessors, (3106), 2770 states have call successors, (3106) [2023-12-16 17:29:08,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16048 states to 16048 states and 27200 transitions. [2023-12-16 17:29:08,463 INFO L78 Accepts]: Start accepts. Automaton has 16048 states and 27200 transitions. Word has length 108 [2023-12-16 17:29:08,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:08,463 INFO L495 AbstractCegarLoop]: Abstraction has 16048 states and 27200 transitions. [2023-12-16 17:29:08,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:08,463 INFO L276 IsEmpty]: Start isEmpty. Operand 16048 states and 27200 transitions. [2023-12-16 17:29:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 17:29:08,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:08,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:08,484 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 [2023-12-16 17:29:08,684 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 [2023-12-16 17:29:08,684 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:08,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:08,685 INFO L85 PathProgramCache]: Analyzing trace with hash 451466458, now seen corresponding path program 1 times [2023-12-16 17:29:08,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:08,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102274418] [2023-12-16 17:29:08,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:08,686 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 [2023-12-16 17:29:08,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:08,687 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) [2023-12-16 17:29:08,691 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 [2023-12-16 17:29:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:08,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:08,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:08,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:08,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:08,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102274418] [2023-12-16 17:29:08,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102274418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:08,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:08,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:08,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835166592] [2023-12-16 17:29:08,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:08,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:08,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:08,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:08,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:08,912 INFO L87 Difference]: Start difference. First operand 16048 states and 27200 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:09,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:09,892 INFO L93 Difference]: Finished difference Result 42397 states and 72201 transitions. [2023-12-16 17:29:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:09,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2023-12-16 17:29:09,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:10,019 INFO L225 Difference]: With dead ends: 42397 [2023-12-16 17:29:10,019 INFO L226 Difference]: Without dead ends: 28579 [2023-12-16 17:29:10,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:10,059 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 89 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:10,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 853 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:10,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28579 states. [2023-12-16 17:29:11,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28579 to 28574. [2023-12-16 17:29:11,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28574 states, 23740 states have (on average 1.6048020219039596) internal successors, (38098), 23746 states have internal predecessors, (38098), 4810 states have call successors, (4810), 20 states have call predecessors, (4810), 23 states have return successors, (5419), 4809 states have call predecessors, (5419), 4809 states have call successors, (5419) [2023-12-16 17:29:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28574 states to 28574 states and 48327 transitions. [2023-12-16 17:29:11,597 INFO L78 Accepts]: Start accepts. Automaton has 28574 states and 48327 transitions. Word has length 109 [2023-12-16 17:29:11,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:11,597 INFO L495 AbstractCegarLoop]: Abstraction has 28574 states and 48327 transitions. [2023-12-16 17:29:11,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:11,598 INFO L276 IsEmpty]: Start isEmpty. Operand 28574 states and 48327 transitions. [2023-12-16 17:29:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 17:29:11,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:11,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:11,629 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 [2023-12-16 17:29:11,829 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 [2023-12-16 17:29:11,830 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:11,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:11,830 INFO L85 PathProgramCache]: Analyzing trace with hash -421998311, now seen corresponding path program 1 times [2023-12-16 17:29:11,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:11,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420050693] [2023-12-16 17:29:11,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:11,831 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 [2023-12-16 17:29:11,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:11,839 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) [2023-12-16 17:29:11,885 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 [2023-12-16 17:29:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:12,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:12,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:12,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:12,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:12,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420050693] [2023-12-16 17:29:12,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420050693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:12,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:12,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:12,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176282768] [2023-12-16 17:29:12,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:12,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:12,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:12,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:12,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:12,073 INFO L87 Difference]: Start difference. First operand 28574 states and 48327 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:13,900 INFO L93 Difference]: Finished difference Result 77774 states and 132043 transitions. [2023-12-16 17:29:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:13,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2023-12-16 17:29:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:14,169 INFO L225 Difference]: With dead ends: 77774 [2023-12-16 17:29:14,169 INFO L226 Difference]: Without dead ends: 52201 [2023-12-16 17:29:14,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:14,236 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 87 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:14,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 855 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:14,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52201 states. [2023-12-16 17:29:16,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52201 to 52196. [2023-12-16 17:29:16,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52196 states, 43647 states have (on average 1.5994226407313217) internal successors, (69810), 43653 states have internal predecessors, (69810), 8525 states have call successors, (8525), 20 states have call predecessors, (8525), 23 states have return successors, (9666), 8524 states have call predecessors, (9666), 8524 states have call successors, (9666) [2023-12-16 17:29:17,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52196 states to 52196 states and 88001 transitions. [2023-12-16 17:29:17,126 INFO L78 Accepts]: Start accepts. Automaton has 52196 states and 88001 transitions. Word has length 110 [2023-12-16 17:29:17,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:17,126 INFO L495 AbstractCegarLoop]: Abstraction has 52196 states and 88001 transitions. [2023-12-16 17:29:17,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 52196 states and 88001 transitions. [2023-12-16 17:29:17,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 17:29:17,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:17,150 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:17,171 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 [2023-12-16 17:29:17,357 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 [2023-12-16 17:29:17,357 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:17,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:17,358 INFO L85 PathProgramCache]: Analyzing trace with hash -456977830, now seen corresponding path program 1 times [2023-12-16 17:29:17,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:17,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819525756] [2023-12-16 17:29:17,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:17,358 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 [2023-12-16 17:29:17,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:17,359 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) [2023-12-16 17:29:17,392 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 [2023-12-16 17:29:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:17,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:29:17,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:29:17,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:17,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:17,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819525756] [2023-12-16 17:29:17,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819525756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:17,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:17,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:29:17,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982603045] [2023-12-16 17:29:17,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:17,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:29:17,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:17,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:29:17,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:17,564 INFO L87 Difference]: Start difference. First operand 52196 states and 88001 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:20,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:20,662 INFO L93 Difference]: Finished difference Result 97292 states and 164408 transitions. [2023-12-16 17:29:20,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:29:20,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2023-12-16 17:29:20,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:21,011 INFO L225 Difference]: With dead ends: 97292 [2023-12-16 17:29:21,011 INFO L226 Difference]: Without dead ends: 97150 [2023-12-16 17:29:21,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:29:21,043 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 85 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:21,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 853 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:29:21,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97150 states. [2023-12-16 17:29:24,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97150 to 97145. [2023-12-16 17:29:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97145 states, 81797 states have (on average 1.592601195642872) internal successors, (130270), 81803 states have internal predecessors, (130270), 15324 states have call successors, (15324), 20 states have call predecessors, (15324), 23 states have return successors, (17511), 15323 states have call predecessors, (17511), 15323 states have call successors, (17511) [2023-12-16 17:29:25,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97145 states to 97145 states and 163105 transitions. [2023-12-16 17:29:25,192 INFO L78 Accepts]: Start accepts. Automaton has 97145 states and 163105 transitions. Word has length 111 [2023-12-16 17:29:25,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:25,192 INFO L495 AbstractCegarLoop]: Abstraction has 97145 states and 163105 transitions. [2023-12-16 17:29:25,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:29:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 97145 states and 163105 transitions. [2023-12-16 17:29:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 17:29:25,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:25,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-16 17:29:25,236 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 [2023-12-16 17:29:25,421 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 [2023-12-16 17:29:25,421 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:25,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:25,422 INFO L85 PathProgramCache]: Analyzing trace with hash -222087718, now seen corresponding path program 1 times [2023-12-16 17:29:25,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:25,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999757301] [2023-12-16 17:29:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:25,422 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 [2023-12-16 17:29:25,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:25,423 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) [2023-12-16 17:29:25,456 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 [2023-12-16 17:29:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:25,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-16 17:29:25,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 17:29:25,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:25,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:25,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999757301] [2023-12-16 17:29:25,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999757301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:25,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:25,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 17:29:25,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324878815] [2023-12-16 17:29:25,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:25,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 17:29:25,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:25,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 17:29:25,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:29:25,946 INFO L87 Difference]: Start difference. First operand 97145 states and 163105 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 5 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 17:29:33,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:29:33,605 INFO L93 Difference]: Finished difference Result 193561 states and 330522 transitions. [2023-12-16 17:29:33,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:29:33,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 5 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 112 [2023-12-16 17:29:33,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:29:34,856 INFO L225 Difference]: With dead ends: 193561 [2023-12-16 17:29:34,856 INFO L226 Difference]: Without dead ends: 193426 [2023-12-16 17:29:34,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2023-12-16 17:29:34,953 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 732 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:34,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 4676 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 17:29:35,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193426 states. [2023-12-16 17:29:44,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193426 to 193410. [2023-12-16 17:29:44,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193410 states, 162915 states have (on average 1.593554921277967) internal successors, (259614), 162817 states have internal predecessors, (259614), 30441 states have call successors, (30441), 47 states have call predecessors, (30441), 53 states have return successors, (38097), 30551 states have call predecessors, (38097), 30438 states have call successors, (38097) [2023-12-16 17:29:45,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193410 states to 193410 states and 328152 transitions. [2023-12-16 17:29:45,312 INFO L78 Accepts]: Start accepts. Automaton has 193410 states and 328152 transitions. Word has length 112 [2023-12-16 17:29:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:29:45,312 INFO L495 AbstractCegarLoop]: Abstraction has 193410 states and 328152 transitions. [2023-12-16 17:29:45,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 5 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-12-16 17:29:45,313 INFO L276 IsEmpty]: Start isEmpty. Operand 193410 states and 328152 transitions. [2023-12-16 17:29:45,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 17:29:45,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:29:45,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:45,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:29:45,555 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 [2023-12-16 17:29:45,555 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:29:45,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:29:45,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1194496571, now seen corresponding path program 1 times [2023-12-16 17:29:45,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:29:45,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910618092] [2023-12-16 17:29:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:29:45,556 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 [2023-12-16 17:29:45,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:29:45,572 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) [2023-12-16 17:29:45,574 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 [2023-12-16 17:29:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:29:45,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:29:45,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:29:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 17:29:45,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:29:45,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:29:45,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910618092] [2023-12-16 17:29:45,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910618092] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:29:45,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:29:45,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:29:45,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900593859] [2023-12-16 17:29:45,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:29:45,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:29:45,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:29:45,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:29:45,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:29:45,877 INFO L87 Difference]: Start difference. First operand 193410 states and 328152 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Received shutdown request... [2023-12-16 17:29:52,644 WARN L340 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)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:29:52,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:29:52,644 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:29:52,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:29:52,645 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 667 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 2367 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:29:52,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 2367 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:29:52,647 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:29:52,657 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 [2023-12-16 17:29:52,854 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 [2023-12-16 17:29:52,855 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (193410states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (158359 states constructed, input type IntersectNwa). [2023-12-16 17:29:52,859 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:29:52,861 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:29:52,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:29:52 BoogieIcfgContainer [2023-12-16 17:29:52,862 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:29:52,862 INFO L158 Benchmark]: Toolchain (without parser) took 60734.11ms. Allocated memory was 331.4MB in the beginning and 7.8GB in the end (delta: 7.4GB). Free memory was 277.5MB in the beginning and 5.6GB in the end (delta: -5.3GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-16 17:29:52,863 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 221.2MB. Free memory is still 171.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:29:52,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 910.86ms. Allocated memory is still 331.4MB. Free memory was 277.1MB in the beginning and 292.3MB in the end (delta: -15.2MB). Peak memory consumption was 66.0MB. Max. memory is 8.0GB. [2023-12-16 17:29:52,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 164.11ms. Allocated memory is still 331.4MB. Free memory was 292.3MB in the beginning and 286.5MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 17:29:52,863 INFO L158 Benchmark]: Boogie Preprocessor took 108.94ms. Allocated memory is still 331.4MB. Free memory was 286.0MB in the beginning and 279.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 17:29:52,863 INFO L158 Benchmark]: RCFGBuilder took 1215.84ms. Allocated memory is still 331.4MB. Free memory was 279.7MB in the beginning and 196.9MB in the end (delta: 82.8MB). Peak memory consumption was 82.8MB. Max. memory is 8.0GB. [2023-12-16 17:29:52,863 INFO L158 Benchmark]: TraceAbstraction took 58326.98ms. Allocated memory was 331.4MB in the beginning and 7.8GB in the end (delta: 7.4GB). Free memory was 196.4MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-16 17:29:52,864 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 221.2MB. Free memory is still 171.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 910.86ms. Allocated memory is still 331.4MB. Free memory was 277.1MB in the beginning and 292.3MB in the end (delta: -15.2MB). Peak memory consumption was 66.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 164.11ms. Allocated memory is still 331.4MB. Free memory was 292.3MB in the beginning and 286.5MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.94ms. Allocated memory is still 331.4MB. Free memory was 286.0MB in the beginning and 279.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1215.84ms. Allocated memory is still 331.4MB. Free memory was 279.7MB in the beginning and 196.9MB in the end (delta: 82.8MB). Peak memory consumption was 82.8MB. Max. memory is 8.0GB. * TraceAbstraction took 58326.98ms. Allocated memory was 331.4MB in the beginning and 7.8GB in the end (delta: 7.4GB). Free memory was 196.4MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] - GenericResultAtLocation [Line: 414]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [414] - GenericResultAtLocation [Line: 538]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [538] - GenericResultAtLocation [Line: 767]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [767] - GenericResultAtLocation [Line: 784]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [784] - GenericResultAtLocation [Line: 1189]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1189] - GenericResultAtLocation [Line: 1227]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1227] - GenericResultAtLocation [Line: 1257]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1257] - GenericResultAtLocation [Line: 1557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1557] - GenericResultAtLocation [Line: 1566]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1566] - GenericResultAtLocation [Line: 2637]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2637] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1562]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1562). Cancelled while NwaCegarLoop was constructing difference of abstraction (193410states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (158359 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 294 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.3s, OverallIterations: 23, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 25.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3558 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3350 mSDsluCounter, 30260 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20255 mSDsCounter, 211 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2817 IncrementalHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 211 mSolverCounterUnsat, 10005 mSDtfsCounter, 2817 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2394 GetRequests, 2317 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193410occurred in iteration=22, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.1s AutomataMinimizationTime, 22 MinimizatonAttempts, 94 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2294 NumberOfCodeBlocks, 2242 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2369 ConstructedInterpolants, 0 QuantifiedInterpolants, 3479 SizeOfPredicates, 43 NumberOfNonLiveVariables, 10921 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 24 InterpolantComputations, 22 PerfectInterpolantSequences, 719/723 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown