/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:46:59,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:46:59,264 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:46:59,269 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:46:59,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:46:59,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:46:59,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:46:59,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:46:59,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:46:59,299 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:46:59,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:46:59,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:46:59,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:46:59,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:46:59,301 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:46:59,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:46:59,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:46:59,302 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:46:59,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:46:59,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:46:59,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:46:59,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:46:59,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:46:59,304 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:46:59,304 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:46:59,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:46:59,304 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:46:59,304 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:46:59,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:46:59,304 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:46:59,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:46:59,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:46:59,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:46:59,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:46:59,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:46:59,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:46:59,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:46:59,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:46:59,306 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:46:59,306 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:46:59,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:46:59,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:46:59,307 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:46:59,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:46:59,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:46:59,307 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:46:59,308 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:46:59,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:46:59,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:46:59,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:46:59,531 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:46:59,531 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:46:59,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c [2023-12-25 05:47:00,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:47:00,797 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:47:00,797 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c [2023-12-25 05:47:00,818 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1982049a6/00a4712591fb435699886c0df3df5722/FLAG0bb40182c [2023-12-25 05:47:00,829 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1982049a6/00a4712591fb435699886c0df3df5722 [2023-12-25 05:47:00,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:47:00,832 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:47:00,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:47:00,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:47:00,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:47:00,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:47:00" (1/1) ... [2023-12-25 05:47:00,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd43b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:00, skipping insertion in model container [2023-12-25 05:47:00,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:47:00" (1/1) ... [2023-12-25 05:47:00,887 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:47:01,067 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c[5243,5256] [2023-12-25 05:47:01,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:47:01,362 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:47:01,399 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:47:01,407 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c[5243,5256] [2023-12-25 05:47:01,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:47:01,483 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:47:01,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2023-12-25 05:47:01,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [208] [2023-12-25 05:47:01,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [217] [2023-12-25 05:47:01,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [619] [2023-12-25 05:47:01,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [985] [2023-12-25 05:47:01,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1288] [2023-12-25 05:47:01,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1504] [2023-12-25 05:47:01,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1539] [2023-12-25 05:47:01,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [1903] [2023-12-25 05:47:01,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1961] [2023-12-25 05:47:01,492 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3028] [2023-12-25 05:47:01,496 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product30.cil.c[5243,5256] [2023-12-25 05:47:01,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:47:01,555 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:47:01,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01 WrapperNode [2023-12-25 05:47:01,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:47:01,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:47:01,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:47:01,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:47:01,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,616 INFO L138 Inliner]: procedures = 134, calls = 211, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 883 [2023-12-25 05:47:01,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:47:01,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:47:01,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:47:01,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:47:01,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,633 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,648 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-25 05:47:01,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,660 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:47:01,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:47:01,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:47:01,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:47:01,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (1/1) ... [2023-12-25 05:47:01,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:47:01,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:47:01,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 05:47:01,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 05:47:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:47:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:47:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:47:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:47:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:47:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:47:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:47:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:47:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:47:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:47:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:47:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:47:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:47:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:47:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:47:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:47:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:47:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:47:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:47:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:47:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:47:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:47:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:47:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:47:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:47:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:47:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:47:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:47:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:47:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:47:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:47:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:47:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:47:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:47:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:47:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:47:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:47:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:47:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:47:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:47:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:47:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:47:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:47:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:47:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:47:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:47:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:47:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:47:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:47:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:47:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:47:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:47:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:47:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:47:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:47:01,942 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:47:01,945 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:47:02,589 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:47:02,648 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:47:02,648 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:47:02,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:47:02 BoogieIcfgContainer [2023-12-25 05:47:02,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:47:02,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:47:02,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:47:02,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:47:02,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:47:00" (1/3) ... [2023-12-25 05:47:02,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d715a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:47:02, skipping insertion in model container [2023-12-25 05:47:02,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:47:01" (2/3) ... [2023-12-25 05:47:02,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d715a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:47:02, skipping insertion in model container [2023-12-25 05:47:02,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:47:02" (3/3) ... [2023-12-25 05:47:02,656 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product30.cil.c [2023-12-25 05:47:02,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:47:02,668 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:47:02,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:47:02,756 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;@1b43cfb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:47:02,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:47:02,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 330 states, 246 states have (on average 1.5691056910569106) internal successors, (386), 252 states have internal predecessors, (386), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-25 05:47:02,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:47:02,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:02,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:02,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:02,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:02,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1424803274, now seen corresponding path program 1 times [2023-12-25 05:47:02,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:02,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071242710] [2023-12-25 05:47:02,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:02,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:02,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:02,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:02,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:47:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:03,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:47:03,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:03,173 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-25 05:47:03,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:03,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:03,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071242710] [2023-12-25 05:47:03,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071242710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:03,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:03,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:47:03,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291515964] [2023-12-25 05:47:03,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:03,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:47:03,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:03,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:47:03,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:47:03,201 INFO L87 Difference]: Start difference. First operand has 330 states, 246 states have (on average 1.5691056910569106) internal successors, (386), 252 states have internal predecessors, (386), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:03,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:03,278 INFO L93 Difference]: Finished difference Result 514 states and 767 transitions. [2023-12-25 05:47:03,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:47:03,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 123 [2023-12-25 05:47:03,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:03,289 INFO L225 Difference]: With dead ends: 514 [2023-12-25 05:47:03,289 INFO L226 Difference]: Without dead ends: 326 [2023-12-25 05:47:03,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:47:03,295 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:03,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 482 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:03,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-12-25 05:47:03,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2023-12-25 05:47:03,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 244 states have (on average 1.5532786885245902) internal successors, (379), 248 states have internal predecessors, (379), 58 states have call successors, (58), 24 states have call predecessors, (58), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-25 05:47:03,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 492 transitions. [2023-12-25 05:47:03,353 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 492 transitions. Word has length 123 [2023-12-25 05:47:03,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:03,354 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 492 transitions. [2023-12-25 05:47:03,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:03,354 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 492 transitions. [2023-12-25 05:47:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:47:03,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:03,358 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:03,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:47:03,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:03,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:03,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:03,564 INFO L85 PathProgramCache]: Analyzing trace with hash -187869655, now seen corresponding path program 1 times [2023-12-25 05:47:03,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:03,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143221734] [2023-12-25 05:47:03,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:03,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:03,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:03,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:03,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:47:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:03,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:47:03,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:47:03,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:03,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:03,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143221734] [2023-12-25 05:47:03,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143221734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:03,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:03,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:03,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325869164] [2023-12-25 05:47:03,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:03,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:03,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:03,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:03,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:03,942 INFO L87 Difference]: Start difference. First operand 326 states and 492 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:04,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:04,055 INFO L93 Difference]: Finished difference Result 647 states and 978 transitions. [2023-12-25 05:47:04,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:04,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2023-12-25 05:47:04,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:04,058 INFO L225 Difference]: With dead ends: 647 [2023-12-25 05:47:04,058 INFO L226 Difference]: Without dead ends: 328 [2023-12-25 05:47:04,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:04,060 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 8 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:04,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1869 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:04,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-12-25 05:47:04,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2023-12-25 05:47:04,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 245 states have (on average 1.5510204081632653) internal successors, (380), 250 states have internal predecessors, (380), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (57), 55 states have call predecessors, (57), 55 states have call successors, (57) [2023-12-25 05:47:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 495 transitions. [2023-12-25 05:47:04,076 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 495 transitions. Word has length 124 [2023-12-25 05:47:04,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:04,076 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 495 transitions. [2023-12-25 05:47:04,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:04,077 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 495 transitions. [2023-12-25 05:47:04,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:47:04,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:04,078 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:04,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:04,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:04,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:04,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:04,286 INFO L85 PathProgramCache]: Analyzing trace with hash -324557879, now seen corresponding path program 1 times [2023-12-25 05:47:04,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:04,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946041877] [2023-12-25 05:47:04,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:04,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:04,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:04,288 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:04,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:47:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:04,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:47:04,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:04,565 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:47:04,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:04,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:04,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946041877] [2023-12-25 05:47:04,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946041877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:04,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:04,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:04,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262892757] [2023-12-25 05:47:04,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:04,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:04,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:04,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:04,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:04,568 INFO L87 Difference]: Start difference. First operand 328 states and 495 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:04,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:04,680 INFO L93 Difference]: Finished difference Result 649 states and 982 transitions. [2023-12-25 05:47:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:04,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 125 [2023-12-25 05:47:04,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:04,684 INFO L225 Difference]: With dead ends: 649 [2023-12-25 05:47:04,684 INFO L226 Difference]: Without dead ends: 330 [2023-12-25 05:47:04,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:04,687 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 8 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:04,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1855 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:04,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-12-25 05:47:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2023-12-25 05:47:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 246 states have (on average 1.548780487804878) internal successors, (381), 252 states have internal predecessors, (381), 58 states have call successors, (58), 24 states have call predecessors, (58), 25 states have return successors, (61), 55 states have call predecessors, (61), 55 states have call successors, (61) [2023-12-25 05:47:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 500 transitions. [2023-12-25 05:47:04,709 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 500 transitions. Word has length 125 [2023-12-25 05:47:04,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:04,710 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 500 transitions. [2023-12-25 05:47:04,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:04,711 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 500 transitions. [2023-12-25 05:47:04,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:47:04,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:04,713 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:04,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:04,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:04,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:04,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:04,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1125092775, now seen corresponding path program 1 times [2023-12-25 05:47:04,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:04,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631196669] [2023-12-25 05:47:04,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:04,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:04,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:04,924 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:04,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:47:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:05,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:47:05,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:05,240 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:47:05,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:05,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:05,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631196669] [2023-12-25 05:47:05,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631196669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:05,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:05,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:05,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305481808] [2023-12-25 05:47:05,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:05,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:05,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:05,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:05,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:05,242 INFO L87 Difference]: Start difference. First operand 330 states and 500 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:05,331 INFO L93 Difference]: Finished difference Result 641 states and 972 transitions. [2023-12-25 05:47:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:05,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2023-12-25 05:47:05,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:05,337 INFO L225 Difference]: With dead ends: 641 [2023-12-25 05:47:05,342 INFO L226 Difference]: Without dead ends: 330 [2023-12-25 05:47:05,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:05,347 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 8 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:05,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1869 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:05,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-12-25 05:47:05,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2023-12-25 05:47:05,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 246 states have (on average 1.548780487804878) internal successors, (381), 252 states have internal predecessors, (381), 58 states have call successors, (58), 24 states have call predecessors, (58), 25 states have return successors, (60), 55 states have call predecessors, (60), 55 states have call successors, (60) [2023-12-25 05:47:05,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 499 transitions. [2023-12-25 05:47:05,359 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 499 transitions. Word has length 126 [2023-12-25 05:47:05,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:05,359 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 499 transitions. [2023-12-25 05:47:05,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:05,359 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 499 transitions. [2023-12-25 05:47:05,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:47:05,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:05,361 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:05,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:05,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:05,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:05,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1428520283, now seen corresponding path program 2 times [2023-12-25 05:47:05,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:05,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130884579] [2023-12-25 05:47:05,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:47:05,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:05,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:05,567 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:05,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:47:05,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:47:05,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:47:05,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:05,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 05:47:05,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:05,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:05,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130884579] [2023-12-25 05:47:05,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130884579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:05,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:05,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:05,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649132700] [2023-12-25 05:47:05,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:05,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:05,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:05,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:05,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:05,765 INFO L87 Difference]: Start difference. First operand 330 states and 499 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:05,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:05,805 INFO L93 Difference]: Finished difference Result 513 states and 757 transitions. [2023-12-25 05:47:05,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:05,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 127 [2023-12-25 05:47:05,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:05,808 INFO L225 Difference]: With dead ends: 513 [2023-12-25 05:47:05,808 INFO L226 Difference]: Without dead ends: 332 [2023-12-25 05:47:05,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:05,809 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 0 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:05,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 957 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:05,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-25 05:47:05,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2023-12-25 05:47:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 248 states have (on average 1.5443548387096775) internal successors, (383), 254 states have internal predecessors, (383), 58 states have call successors, (58), 24 states have call predecessors, (58), 25 states have return successors, (60), 55 states have call predecessors, (60), 55 states have call successors, (60) [2023-12-25 05:47:05,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 501 transitions. [2023-12-25 05:47:05,820 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 501 transitions. Word has length 127 [2023-12-25 05:47:05,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:05,820 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 501 transitions. [2023-12-25 05:47:05,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 501 transitions. [2023-12-25 05:47:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 05:47:05,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:05,822 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:05,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:06,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:06,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:06,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1681861898, now seen corresponding path program 1 times [2023-12-25 05:47:06,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:06,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420221263] [2023-12-25 05:47:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:06,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:06,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:06,034 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:06,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:47:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:06,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:47:06,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:06,366 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-25 05:47:06,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:06,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:06,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420221263] [2023-12-25 05:47:06,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420221263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:06,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:06,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:06,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496503713] [2023-12-25 05:47:06,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:06,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:06,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:06,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:06,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:06,368 INFO L87 Difference]: Start difference. First operand 332 states and 501 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:06,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:06,450 INFO L93 Difference]: Finished difference Result 647 states and 979 transitions. [2023-12-25 05:47:06,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:06,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2023-12-25 05:47:06,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:06,453 INFO L225 Difference]: With dead ends: 647 [2023-12-25 05:47:06,453 INFO L226 Difference]: Without dead ends: 334 [2023-12-25 05:47:06,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:06,454 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 6 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:06,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1871 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-25 05:47:06,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2023-12-25 05:47:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 249 states have (on average 1.5421686746987953) internal successors, (384), 256 states have internal predecessors, (384), 58 states have call successors, (58), 24 states have call predecessors, (58), 26 states have return successors, (62), 55 states have call predecessors, (62), 55 states have call successors, (62) [2023-12-25 05:47:06,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 504 transitions. [2023-12-25 05:47:06,463 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 504 transitions. Word has length 134 [2023-12-25 05:47:06,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:06,463 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 504 transitions. [2023-12-25 05:47:06,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:06,463 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 504 transitions. [2023-12-25 05:47:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:47:06,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:06,465 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:06,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:06,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:06,672 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:06,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1640120913, now seen corresponding path program 1 times [2023-12-25 05:47:06,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:06,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772753606] [2023-12-25 05:47:06,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:06,675 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 [2023-12-25 05:47:06,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:06,676 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:06,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:47:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:06,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:47:06,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:06,941 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:47:06,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:06,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:06,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772753606] [2023-12-25 05:47:06,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772753606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:06,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:06,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:06,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384345429] [2023-12-25 05:47:06,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:06,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:06,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:06,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:06,942 INFO L87 Difference]: Start difference. First operand 334 states and 504 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:07,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:07,037 INFO L93 Difference]: Finished difference Result 645 states and 974 transitions. [2023-12-25 05:47:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:07,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2023-12-25 05:47:07,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:07,040 INFO L225 Difference]: With dead ends: 645 [2023-12-25 05:47:07,040 INFO L226 Difference]: Without dead ends: 334 [2023-12-25 05:47:07,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:07,041 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 8 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:07,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1856 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:07,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-25 05:47:07,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2023-12-25 05:47:07,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 249 states have (on average 1.5421686746987953) internal successors, (384), 256 states have internal predecessors, (384), 58 states have call successors, (58), 24 states have call predecessors, (58), 26 states have return successors, (61), 55 states have call predecessors, (61), 55 states have call successors, (61) [2023-12-25 05:47:07,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 503 transitions. [2023-12-25 05:47:07,073 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 503 transitions. Word has length 135 [2023-12-25 05:47:07,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:07,074 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 503 transitions. [2023-12-25 05:47:07,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:07,074 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 503 transitions. [2023-12-25 05:47:07,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 05:47:07,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:07,075 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:07,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:07,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:07,283 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:07,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash 817933617, now seen corresponding path program 2 times [2023-12-25 05:47:07,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:07,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071155769] [2023-12-25 05:47:07,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:47:07,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:07,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:07,285 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:07,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:47:07,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 05:47:07,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:47:07,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:47:07,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:07,699 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:47:07,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:47:07,939 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 05:47:07,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:07,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071155769] [2023-12-25 05:47:07,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071155769] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:47:07,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:47:07,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:47:07,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144661231] [2023-12-25 05:47:07,940 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:47:07,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:47:07,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:07,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:47:07,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:47:07,941 INFO L87 Difference]: Start difference. First operand 334 states and 503 transitions. Second operand has 16 states, 16 states have (on average 9.375) internal successors, (150), 14 states have internal predecessors, (150), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:47:10,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:10,637 INFO L93 Difference]: Finished difference Result 1073 states and 1631 transitions. [2023-12-25 05:47:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:47:10,638 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.375) internal successors, (150), 14 states have internal predecessors, (150), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) Word has length 136 [2023-12-25 05:47:10,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:10,642 INFO L225 Difference]: With dead ends: 1073 [2023-12-25 05:47:10,642 INFO L226 Difference]: Without dead ends: 897 [2023-12-25 05:47:10,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:47:10,644 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1574 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 3690 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 4106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 3690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:10,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 1996 Invalid, 4106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 3690 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 05:47:10,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2023-12-25 05:47:10,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 667. [2023-12-25 05:47:10,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 501 states have (on average 1.5429141716566865) internal successors, (773), 511 states have internal predecessors, (773), 112 states have call successors, (112), 48 states have call predecessors, (112), 53 states have return successors, (123), 111 states have call predecessors, (123), 108 states have call successors, (123) [2023-12-25 05:47:10,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1008 transitions. [2023-12-25 05:47:10,674 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1008 transitions. Word has length 136 [2023-12-25 05:47:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:10,674 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1008 transitions. [2023-12-25 05:47:10,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.375) internal successors, (150), 14 states have internal predecessors, (150), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:47:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1008 transitions. [2023-12-25 05:47:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:47:10,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:10,677 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:10,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:10,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:10,887 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:10,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:10,888 INFO L85 PathProgramCache]: Analyzing trace with hash 585691127, now seen corresponding path program 1 times [2023-12-25 05:47:10,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:10,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094413522] [2023-12-25 05:47:10,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:10,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:10,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:10,890 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:10,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:47:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:11,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:47:11,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 05:47:11,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:11,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:11,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094413522] [2023-12-25 05:47:11,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094413522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:11,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:11,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:11,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684152688] [2023-12-25 05:47:11,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:11,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:11,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:11,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:11,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:11,181 INFO L87 Difference]: Start difference. First operand 667 states and 1008 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:11,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:11,301 INFO L93 Difference]: Finished difference Result 1301 states and 1974 transitions. [2023-12-25 05:47:11,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:11,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 137 [2023-12-25 05:47:11,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:11,304 INFO L225 Difference]: With dead ends: 1301 [2023-12-25 05:47:11,305 INFO L226 Difference]: Without dead ends: 673 [2023-12-25 05:47:11,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:11,307 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 6 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:11,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1858 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:11,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-25 05:47:11,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 671. [2023-12-25 05:47:11,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 503 states have (on average 1.540755467196819) internal successors, (775), 515 states have internal predecessors, (775), 112 states have call successors, (112), 48 states have call predecessors, (112), 55 states have return successors, (128), 111 states have call predecessors, (128), 108 states have call successors, (128) [2023-12-25 05:47:11,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1015 transitions. [2023-12-25 05:47:11,336 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1015 transitions. Word has length 137 [2023-12-25 05:47:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:11,336 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 1015 transitions. [2023-12-25 05:47:11,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1015 transitions. [2023-12-25 05:47:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 05:47:11,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:11,339 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:11,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:11,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:11,546 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:11,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:11,546 INFO L85 PathProgramCache]: Analyzing trace with hash 266641266, now seen corresponding path program 1 times [2023-12-25 05:47:11,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:11,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724493893] [2023-12-25 05:47:11,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:11,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:11,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:11,549 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:11,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:47:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:11,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:11,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:11,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:11,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:11,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724493893] [2023-12-25 05:47:11,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724493893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:11,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:11,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:11,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506422917] [2023-12-25 05:47:11,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:11,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:11,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:11,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:11,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:11,799 INFO L87 Difference]: Start difference. First operand 671 states and 1015 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:11,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:11,853 INFO L93 Difference]: Finished difference Result 1401 states and 2154 transitions. [2023-12-25 05:47:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:11,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2023-12-25 05:47:11,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:11,857 INFO L225 Difference]: With dead ends: 1401 [2023-12-25 05:47:11,857 INFO L226 Difference]: Without dead ends: 775 [2023-12-25 05:47:11,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:11,860 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 102 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:11,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 931 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:11,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-12-25 05:47:11,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 765. [2023-12-25 05:47:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 575 states have (on average 1.5565217391304347) internal successors, (895), 587 states have internal predecessors, (895), 134 states have call successors, (134), 48 states have call predecessors, (134), 55 states have return successors, (158), 133 states have call predecessors, (158), 130 states have call successors, (158) [2023-12-25 05:47:11,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1187 transitions. [2023-12-25 05:47:11,887 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1187 transitions. Word has length 138 [2023-12-25 05:47:11,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:11,887 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 1187 transitions. [2023-12-25 05:47:11,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:11,888 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1187 transitions. [2023-12-25 05:47:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 05:47:11,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:11,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:11,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:12,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:12,100 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:12,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:12,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2132898705, now seen corresponding path program 1 times [2023-12-25 05:47:12,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:12,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914681259] [2023-12-25 05:47:12,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:12,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:12,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:12,103 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:12,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:47:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:12,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:47:12,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:12,385 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:47:12,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:12,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:12,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914681259] [2023-12-25 05:47:12,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914681259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:12,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:12,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:47:12,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154798280] [2023-12-25 05:47:12,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:12,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:47:12,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:12,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:47:12,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:47:12,387 INFO L87 Difference]: Start difference. First operand 765 states and 1187 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:12,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:12,465 INFO L93 Difference]: Finished difference Result 1499 states and 2323 transitions. [2023-12-25 05:47:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:47:12,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2023-12-25 05:47:12,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:12,468 INFO L225 Difference]: With dead ends: 1499 [2023-12-25 05:47:12,468 INFO L226 Difference]: Without dead ends: 777 [2023-12-25 05:47:12,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:12,471 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 453 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:12,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 980 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:12,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2023-12-25 05:47:12,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 773. [2023-12-25 05:47:12,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 581 states have (on average 1.5387263339070567) internal successors, (894), 593 states have internal predecessors, (894), 134 states have call successors, (134), 50 states have call predecessors, (134), 57 states have return successors, (156), 133 states have call predecessors, (156), 130 states have call successors, (156) [2023-12-25 05:47:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1184 transitions. [2023-12-25 05:47:12,496 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1184 transitions. Word has length 139 [2023-12-25 05:47:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:12,496 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1184 transitions. [2023-12-25 05:47:12,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:47:12,497 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1184 transitions. [2023-12-25 05:47:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 05:47:12,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:12,499 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:12,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:12,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:12,705 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:12,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:12,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1294062405, now seen corresponding path program 1 times [2023-12-25 05:47:12,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:12,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219207197] [2023-12-25 05:47:12,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:12,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:12,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:12,707 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:12,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:47:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:12,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:47:12,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:12,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:47:13,018 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:13,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:13,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219207197] [2023-12-25 05:47:13,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219207197] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:47:13,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:47:13,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:47:13,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967312953] [2023-12-25 05:47:13,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:47:13,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:47:13,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:13,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:47:13,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:13,020 INFO L87 Difference]: Start difference. First operand 773 states and 1184 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:47:13,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:13,246 INFO L93 Difference]: Finished difference Result 1785 states and 2850 transitions. [2023-12-25 05:47:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:47:13,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 140 [2023-12-25 05:47:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:13,253 INFO L225 Difference]: With dead ends: 1785 [2023-12-25 05:47:13,253 INFO L226 Difference]: Without dead ends: 1423 [2023-12-25 05:47:13,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:47:13,255 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 367 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:13,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 2494 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:47:13,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2023-12-25 05:47:13,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1393. [2023-12-25 05:47:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1073 states have (on average 1.5880708294501398) internal successors, (1704), 1085 states have internal predecessors, (1704), 262 states have call successors, (262), 50 states have call predecessors, (262), 57 states have return successors, (324), 261 states have call predecessors, (324), 258 states have call successors, (324) [2023-12-25 05:47:13,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 2290 transitions. [2023-12-25 05:47:13,308 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 2290 transitions. Word has length 140 [2023-12-25 05:47:13,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:13,308 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 2290 transitions. [2023-12-25 05:47:13,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:47:13,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 2290 transitions. [2023-12-25 05:47:13,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:47:13,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:13,314 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:13,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-25 05:47:13,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:13,521 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:13,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:13,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1451411922, now seen corresponding path program 1 times [2023-12-25 05:47:13,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:13,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064561446] [2023-12-25 05:47:13,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:13,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:13,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:13,523 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:13,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:47:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:13,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:13,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:13,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:13,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:13,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064561446] [2023-12-25 05:47:13,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064561446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:13,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:13,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:13,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737495434] [2023-12-25 05:47:13,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:13,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:13,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:13,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:13,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:13,752 INFO L87 Difference]: Start difference. First operand 1393 states and 2290 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:13,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:13,842 INFO L93 Difference]: Finished difference Result 3243 states and 5447 transitions. [2023-12-25 05:47:13,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:13,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-12-25 05:47:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:13,876 INFO L225 Difference]: With dead ends: 3243 [2023-12-25 05:47:13,876 INFO L226 Difference]: Without dead ends: 1987 [2023-12-25 05:47:13,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:13,881 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 96 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:13,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 954 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:13,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2023-12-25 05:47:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1977. [2023-12-25 05:47:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1977 states, 1529 states have (on average 1.6075866579463702) internal successors, (2458), 1541 states have internal predecessors, (2458), 390 states have call successors, (390), 50 states have call predecessors, (390), 57 states have return successors, (492), 389 states have call predecessors, (492), 386 states have call successors, (492) [2023-12-25 05:47:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 3340 transitions. [2023-12-25 05:47:13,957 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 3340 transitions. Word has length 143 [2023-12-25 05:47:13,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:13,958 INFO L495 AbstractCegarLoop]: Abstraction has 1977 states and 3340 transitions. [2023-12-25 05:47:13,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:13,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 3340 transitions. [2023-12-25 05:47:13,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-25 05:47:13,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:13,967 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:13,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:14,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:14,172 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:14,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:14,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1405483058, now seen corresponding path program 1 times [2023-12-25 05:47:14,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:14,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57883112] [2023-12-25 05:47:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:14,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:14,174 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:14,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:47:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:14,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:14,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:14,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:14,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:14,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57883112] [2023-12-25 05:47:14,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57883112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:14,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:14,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:14,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169131599] [2023-12-25 05:47:14,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:14,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:14,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:14,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:14,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:14,393 INFO L87 Difference]: Start difference. First operand 1977 states and 3340 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:14,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:14,493 INFO L93 Difference]: Finished difference Result 4667 states and 7951 transitions. [2023-12-25 05:47:14,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:14,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2023-12-25 05:47:14,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:14,505 INFO L225 Difference]: With dead ends: 4667 [2023-12-25 05:47:14,506 INFO L226 Difference]: Without dead ends: 2927 [2023-12-25 05:47:14,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:14,513 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 94 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:14,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 945 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:14,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2023-12-25 05:47:14,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2917. [2023-12-25 05:47:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2279 states have (on average 1.612988152698552) internal successors, (3676), 2291 states have internal predecessors, (3676), 580 states have call successors, (580), 50 states have call predecessors, (580), 57 states have return successors, (714), 579 states have call predecessors, (714), 576 states have call successors, (714) [2023-12-25 05:47:14,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 4970 transitions. [2023-12-25 05:47:14,685 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 4970 transitions. Word has length 144 [2023-12-25 05:47:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:14,685 INFO L495 AbstractCegarLoop]: Abstraction has 2917 states and 4970 transitions. [2023-12-25 05:47:14,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 4970 transitions. [2023-12-25 05:47:14,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:47:14,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:14,698 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:14,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:14,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:14,905 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:14,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash 728922620, now seen corresponding path program 1 times [2023-12-25 05:47:14,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:14,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537919642] [2023-12-25 05:47:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:14,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:14,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:14,907 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:14,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:47:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:15,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:15,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:15,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:15,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:15,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537919642] [2023-12-25 05:47:15,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537919642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:15,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:15,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:15,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674946420] [2023-12-25 05:47:15,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:15,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:15,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:15,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:15,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:15,133 INFO L87 Difference]: Start difference. First operand 2917 states and 4970 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:15,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:15,319 INFO L93 Difference]: Finished difference Result 6769 states and 11657 transitions. [2023-12-25 05:47:15,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:15,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2023-12-25 05:47:15,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:15,337 INFO L225 Difference]: With dead ends: 6769 [2023-12-25 05:47:15,337 INFO L226 Difference]: Without dead ends: 4341 [2023-12-25 05:47:15,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:15,347 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 92 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:15,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 940 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:15,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4341 states. [2023-12-25 05:47:15,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4341 to 4331. [2023-12-25 05:47:15,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4331 states, 3447 states have (on average 1.6176385262547142) internal successors, (5576), 3459 states have internal predecessors, (5576), 826 states have call successors, (826), 50 states have call predecessors, (826), 57 states have return successors, (1044), 825 states have call predecessors, (1044), 822 states have call successors, (1044) [2023-12-25 05:47:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 7446 transitions. [2023-12-25 05:47:15,541 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 7446 transitions. Word has length 145 [2023-12-25 05:47:15,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:15,541 INFO L495 AbstractCegarLoop]: Abstraction has 4331 states and 7446 transitions. [2023-12-25 05:47:15,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:15,542 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 7446 transitions. [2023-12-25 05:47:15,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-25 05:47:15,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:15,561 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:15,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:15,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:15,768 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:15,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:15,768 INFO L85 PathProgramCache]: Analyzing trace with hash 26888211, now seen corresponding path program 1 times [2023-12-25 05:47:15,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:15,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366958173] [2023-12-25 05:47:15,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:15,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:15,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:15,770 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:15,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:47:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:15,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:15,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:16,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:16,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:16,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366958173] [2023-12-25 05:47:16,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366958173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:16,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:16,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:16,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745205268] [2023-12-25 05:47:16,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:16,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:16,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:16,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:16,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:16,003 INFO L87 Difference]: Start difference. First operand 4331 states and 7446 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:16,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:16,203 INFO L93 Difference]: Finished difference Result 10017 states and 17401 transitions. [2023-12-25 05:47:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:16,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2023-12-25 05:47:16,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:16,247 INFO L225 Difference]: With dead ends: 10017 [2023-12-25 05:47:16,247 INFO L226 Difference]: Without dead ends: 6587 [2023-12-25 05:47:16,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:16,260 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 90 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:16,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 940 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:16,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6587 states. [2023-12-25 05:47:16,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6587 to 6577. [2023-12-25 05:47:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 5335 states have (on average 1.620618556701031) internal successors, (8646), 5347 states have internal predecessors, (8646), 1184 states have call successors, (1184), 50 states have call predecessors, (1184), 57 states have return successors, (1542), 1183 states have call predecessors, (1542), 1180 states have call successors, (1542) [2023-12-25 05:47:16,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 11372 transitions. [2023-12-25 05:47:16,541 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 11372 transitions. Word has length 146 [2023-12-25 05:47:16,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:16,541 INFO L495 AbstractCegarLoop]: Abstraction has 6577 states and 11372 transitions. [2023-12-25 05:47:16,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:16,542 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 11372 transitions. [2023-12-25 05:47:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:47:16,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:16,565 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:16,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:16,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:16,776 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:16,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:16,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1758795528, now seen corresponding path program 1 times [2023-12-25 05:47:16,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:16,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497734867] [2023-12-25 05:47:16,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:16,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:16,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:16,778 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:16,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:47:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:17,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:17,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:17,055 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:17,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:17,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:17,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497734867] [2023-12-25 05:47:17,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497734867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:17,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:17,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:17,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59919785] [2023-12-25 05:47:17,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:17,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:17,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:17,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:17,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:17,058 INFO L87 Difference]: Start difference. First operand 6577 states and 11372 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:17,361 INFO L93 Difference]: Finished difference Result 15865 states and 27655 transitions. [2023-12-25 05:47:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:17,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2023-12-25 05:47:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:17,401 INFO L225 Difference]: With dead ends: 15865 [2023-12-25 05:47:17,401 INFO L226 Difference]: Without dead ends: 10659 [2023-12-25 05:47:17,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:17,416 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 88 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:17,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 953 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10659 states. [2023-12-25 05:47:17,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10659 to 10649. [2023-12-25 05:47:17,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10649 states, 8655 states have (on average 1.612940496822646) internal successors, (13960), 8667 states have internal predecessors, (13960), 1936 states have call successors, (1936), 50 states have call predecessors, (1936), 57 states have return successors, (2538), 1935 states have call predecessors, (2538), 1932 states have call successors, (2538) [2023-12-25 05:47:17,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10649 states to 10649 states and 18434 transitions. [2023-12-25 05:47:17,860 INFO L78 Accepts]: Start accepts. Automaton has 10649 states and 18434 transitions. Word has length 147 [2023-12-25 05:47:17,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:17,860 INFO L495 AbstractCegarLoop]: Abstraction has 10649 states and 18434 transitions. [2023-12-25 05:47:17,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:17,860 INFO L276 IsEmpty]: Start isEmpty. Operand 10649 states and 18434 transitions. [2023-12-25 05:47:17,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-25 05:47:17,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:17,895 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:17,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:18,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:18,101 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:18,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:18,101 INFO L85 PathProgramCache]: Analyzing trace with hash -358890217, now seen corresponding path program 1 times [2023-12-25 05:47:18,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:18,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980131300] [2023-12-25 05:47:18,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:18,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:18,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:18,103 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:18,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:47:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:18,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:18,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:18,371 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:18,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:18,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:18,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980131300] [2023-12-25 05:47:18,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980131300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:18,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:18,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:18,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19790620] [2023-12-25 05:47:18,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:18,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:18,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:18,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:18,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:18,376 INFO L87 Difference]: Start difference. First operand 10649 states and 18434 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:18,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:18,887 INFO L93 Difference]: Finished difference Result 26163 states and 45521 transitions. [2023-12-25 05:47:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:18,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2023-12-25 05:47:18,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:18,939 INFO L225 Difference]: With dead ends: 26163 [2023-12-25 05:47:18,939 INFO L226 Difference]: Without dead ends: 17647 [2023-12-25 05:47:18,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:18,961 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 86 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:18,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 949 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:18,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17647 states. [2023-12-25 05:47:19,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17647 to 17637. [2023-12-25 05:47:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17637 states, 14431 states have (on average 1.6104220081768414) internal successors, (23240), 14443 states have internal predecessors, (23240), 3148 states have call successors, (3148), 50 states have call predecessors, (3148), 57 states have return successors, (4050), 3147 states have call predecessors, (4050), 3144 states have call successors, (4050) [2023-12-25 05:47:19,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17637 states to 17637 states and 30438 transitions. [2023-12-25 05:47:19,718 INFO L78 Accepts]: Start accepts. Automaton has 17637 states and 30438 transitions. Word has length 148 [2023-12-25 05:47:19,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:19,719 INFO L495 AbstractCegarLoop]: Abstraction has 17637 states and 30438 transitions. [2023-12-25 05:47:19,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 17637 states and 30438 transitions. [2023-12-25 05:47:19,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:47:19,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:19,765 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:19,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:19,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:19,971 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:19,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:19,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1043196998, now seen corresponding path program 1 times [2023-12-25 05:47:19,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:19,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138372134] [2023-12-25 05:47:19,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:19,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:19,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:19,973 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:20,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:47:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:20,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:20,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:20,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:20,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:20,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138372134] [2023-12-25 05:47:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138372134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:20,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:20,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:20,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97902990] [2023-12-25 05:47:20,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:20,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:20,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:20,214 INFO L87 Difference]: Start difference. First operand 17637 states and 30438 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:21,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:21,208 INFO L93 Difference]: Finished difference Result 45497 states and 78949 transitions. [2023-12-25 05:47:21,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:21,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2023-12-25 05:47:21,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:21,324 INFO L225 Difference]: With dead ends: 45497 [2023-12-25 05:47:21,325 INFO L226 Difference]: Without dead ends: 30847 [2023-12-25 05:47:21,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:21,364 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 84 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:21,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 962 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:21,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30847 states. [2023-12-25 05:47:22,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30847 to 30837. [2023-12-25 05:47:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30837 states, 25225 states have (on average 1.6010307234886025) internal successors, (40386), 25237 states have internal predecessors, (40386), 5554 states have call successors, (5554), 50 states have call predecessors, (5554), 57 states have return successors, (7162), 5553 states have call predecessors, (7162), 5550 states have call successors, (7162) [2023-12-25 05:47:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30837 states to 30837 states and 53102 transitions. [2023-12-25 05:47:22,932 INFO L78 Accepts]: Start accepts. Automaton has 30837 states and 53102 transitions. Word has length 149 [2023-12-25 05:47:22,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:22,933 INFO L495 AbstractCegarLoop]: Abstraction has 30837 states and 53102 transitions. [2023-12-25 05:47:22,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:22,933 INFO L276 IsEmpty]: Start isEmpty. Operand 30837 states and 53102 transitions. [2023-12-25 05:47:23,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-25 05:47:23,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:23,019 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:23,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:23,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:23,226 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:23,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:23,226 INFO L85 PathProgramCache]: Analyzing trace with hash 565717144, now seen corresponding path program 1 times [2023-12-25 05:47:23,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:23,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658224154] [2023-12-25 05:47:23,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:23,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:23,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:23,228 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:23,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:47:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:23,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:23,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:23,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:23,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:23,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658224154] [2023-12-25 05:47:23,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658224154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:23,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:23,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:23,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764260602] [2023-12-25 05:47:23,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:23,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:23,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:23,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:23,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:23,475 INFO L87 Difference]: Start difference. First operand 30837 states and 53102 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:25,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:25,390 INFO L93 Difference]: Finished difference Result 81427 states and 141063 transitions. [2023-12-25 05:47:25,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:25,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-12-25 05:47:25,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:25,592 INFO L225 Difference]: With dead ends: 81427 [2023-12-25 05:47:25,592 INFO L226 Difference]: Without dead ends: 54803 [2023-12-25 05:47:25,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:25,647 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 82 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:25,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 943 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:25,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54803 states. [2023-12-25 05:47:27,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54803 to 54793. [2023-12-25 05:47:28,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54793 states, 45103 states have (on average 1.5967452275901826) internal successors, (72018), 45115 states have internal predecessors, (72018), 9632 states have call successors, (9632), 50 states have call predecessors, (9632), 57 states have return successors, (12594), 9631 states have call predecessors, (12594), 9628 states have call successors, (12594) [2023-12-25 05:47:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54793 states to 54793 states and 94244 transitions. [2023-12-25 05:47:28,243 INFO L78 Accepts]: Start accepts. Automaton has 54793 states and 94244 transitions. Word has length 150 [2023-12-25 05:47:28,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:28,243 INFO L495 AbstractCegarLoop]: Abstraction has 54793 states and 94244 transitions. [2023-12-25 05:47:28,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 54793 states and 94244 transitions. [2023-12-25 05:47:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:47:28,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:28,380 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:28,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:28,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:28,582 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:28,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:28,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1237276964, now seen corresponding path program 1 times [2023-12-25 05:47:28,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:28,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471059163] [2023-12-25 05:47:28,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:28,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:28,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:28,585 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:28,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:47:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:29,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:29,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:29,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:29,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:29,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471059163] [2023-12-25 05:47:29,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471059163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:29,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:29,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:29,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755785075] [2023-12-25 05:47:29,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:29,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:29,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:29,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:29,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:29,059 INFO L87 Difference]: Start difference. First operand 54793 states and 94244 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:32,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:32,397 INFO L93 Difference]: Finished difference Result 149021 states and 256447 transitions. [2023-12-25 05:47:32,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:32,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2023-12-25 05:47:32,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:32,910 INFO L225 Difference]: With dead ends: 149021 [2023-12-25 05:47:32,910 INFO L226 Difference]: Without dead ends: 99919 [2023-12-25 05:47:33,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:33,021 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 80 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:33,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 948 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:33,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99919 states. [2023-12-25 05:47:37,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99919 to 99909. [2023-12-25 05:47:37,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99909 states, 82789 states have (on average 1.5910084673084588) internal successors, (131718), 82801 states have internal predecessors, (131718), 17062 states have call successors, (17062), 50 states have call predecessors, (17062), 57 states have return successors, (21620), 17061 states have call predecessors, (21620), 17058 states have call successors, (21620) [2023-12-25 05:47:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99909 states to 99909 states and 170400 transitions. [2023-12-25 05:47:37,689 INFO L78 Accepts]: Start accepts. Automaton has 99909 states and 170400 transitions. Word has length 151 [2023-12-25 05:47:37,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:37,690 INFO L495 AbstractCegarLoop]: Abstraction has 99909 states and 170400 transitions. [2023-12-25 05:47:37,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:37,690 INFO L276 IsEmpty]: Start isEmpty. Operand 99909 states and 170400 transitions. [2023-12-25 05:47:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-25 05:47:37,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:37,871 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:37,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:38,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:38,075 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:38,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:38,076 INFO L85 PathProgramCache]: Analyzing trace with hash 838733688, now seen corresponding path program 1 times [2023-12-25 05:47:38,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:38,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518469762] [2023-12-25 05:47:38,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:38,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:38,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:38,078 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:38,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:47:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:38,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:47:38,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:38,321 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:47:38,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:38,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:38,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518469762] [2023-12-25 05:47:38,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518469762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:38,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:38,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:47:38,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272825174] [2023-12-25 05:47:38,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:38,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:47:38,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:38,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:47:38,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:38,323 INFO L87 Difference]: Start difference. First operand 99909 states and 170400 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:44,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:44,151 INFO L93 Difference]: Finished difference Result 185995 states and 318086 transitions. [2023-12-25 05:47:44,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:47:44,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2023-12-25 05:47:44,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:44,974 INFO L225 Difference]: With dead ends: 185995 [2023-12-25 05:47:44,974 INFO L226 Difference]: Without dead ends: 185633 [2023-12-25 05:47:45,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:47:45,050 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 78 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:45,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 943 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:47:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185633 states. [2023-12-25 05:47:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185633 to 185623. [2023-12-25 05:47:52,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185623 states, 154905 states have (on average 1.5836544979180789) internal successors, (245316), 154917 states have internal predecessors, (245316), 30660 states have call successors, (30660), 50 states have call predecessors, (30660), 57 states have return successors, (39402), 30659 states have call predecessors, (39402), 30656 states have call successors, (39402) [2023-12-25 05:47:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185623 states to 185623 states and 315378 transitions. [2023-12-25 05:47:53,802 INFO L78 Accepts]: Start accepts. Automaton has 185623 states and 315378 transitions. Word has length 152 [2023-12-25 05:47:53,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:53,803 INFO L495 AbstractCegarLoop]: Abstraction has 185623 states and 315378 transitions. [2023-12-25 05:47:53,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:47:53,803 INFO L276 IsEmpty]: Start isEmpty. Operand 185623 states and 315378 transitions. [2023-12-25 05:47:54,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:47:54,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:54,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:47:54,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:54,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:54,246 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:54,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:54,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1666881829, now seen corresponding path program 1 times [2023-12-25 05:47:54,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:54,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788273101] [2023-12-25 05:47:54,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:54,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:54,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:54,249 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:54,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:47:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:54,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:47:54,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:54,593 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:47:54,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:47:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:47:54,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:54,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788273101] [2023-12-25 05:47:54,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788273101] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:47:54,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:47:54,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:47:54,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185496318] [2023-12-25 05:47:54,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:47:54,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:47:54,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:54,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:47:54,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:47:54,835 INFO L87 Difference]: Start difference. First operand 185623 states and 315378 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:48:06,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:06,312 INFO L93 Difference]: Finished difference Result 272983 states and 464045 transitions. [2023-12-25 05:48:06,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:48:06,313 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) Word has length 153 [2023-12-25 05:48:06,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:07,720 INFO L225 Difference]: With dead ends: 272983 [2023-12-25 05:48:07,721 INFO L226 Difference]: Without dead ends: 272805 [2023-12-25 05:48:07,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:48:07,842 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 1656 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 4376 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 4805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 4376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:07,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 2339 Invalid, 4805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 4376 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-25 05:48:08,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272805 states. [2023-12-25 05:48:18,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272805 to 185625. [2023-12-25 05:48:18,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185625 states, 154907 states have (on average 1.583646962370971) internal successors, (245318), 154918 states have internal predecessors, (245318), 30660 states have call successors, (30660), 50 states have call predecessors, (30660), 57 states have return successors, (39402), 30660 states have call predecessors, (39402), 30656 states have call successors, (39402) [2023-12-25 05:48:19,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185625 states to 185625 states and 315380 transitions. [2023-12-25 05:48:19,292 INFO L78 Accepts]: Start accepts. Automaton has 185625 states and 315380 transitions. Word has length 153 [2023-12-25 05:48:19,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:19,293 INFO L495 AbstractCegarLoop]: Abstraction has 185625 states and 315380 transitions. [2023-12-25 05:48:19,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 14 states have internal predecessors, (176), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-25 05:48:19,293 INFO L276 IsEmpty]: Start isEmpty. Operand 185625 states and 315380 transitions. [2023-12-25 05:48:19,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:48:19,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:19,549 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:19,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-25 05:48:19,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:19,750 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:19,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:19,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1315842913, now seen corresponding path program 1 times [2023-12-25 05:48:19,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:19,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028197571] [2023-12-25 05:48:19,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:19,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:19,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:19,752 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:19,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:48:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:20,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:48:20,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:20,309 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:48:20,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:20,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:20,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028197571] [2023-12-25 05:48:20,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028197571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:20,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:20,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:48:20,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902320942] [2023-12-25 05:48:20,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:20,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:48:20,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:20,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:48:20,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:48:20,311 INFO L87 Difference]: Start difference. First operand 185625 states and 315380 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:48:27,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:27,187 INFO L93 Difference]: Finished difference Result 275963 states and 468954 transitions. [2023-12-25 05:48:27,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:48:27,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2023-12-25 05:48:27,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:27,937 INFO L225 Difference]: With dead ends: 275963 [2023-12-25 05:48:27,937 INFO L226 Difference]: Without dead ends: 183152 [2023-12-25 05:48:28,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:48:28,133 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 10 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:28,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1841 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:48:28,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183152 states. [2023-12-25 05:48:36,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183152 to 183150. [2023-12-25 05:48:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183150 states, 152885 states have (on average 1.5845439382542434) internal successors, (242253), 152783 states have internal predecessors, (242253), 30211 states have call successors, (30211), 49 states have call predecessors, (30211), 53 states have return successors, (37747), 30321 states have call predecessors, (37747), 30207 states have call successors, (37747) [2023-12-25 05:48:37,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183150 states to 183150 states and 310211 transitions. [2023-12-25 05:48:37,867 INFO L78 Accepts]: Start accepts. Automaton has 183150 states and 310211 transitions. Word has length 153 [2023-12-25 05:48:37,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:37,867 INFO L495 AbstractCegarLoop]: Abstraction has 183150 states and 310211 transitions. [2023-12-25 05:48:37,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:48:37,867 INFO L276 IsEmpty]: Start isEmpty. Operand 183150 states and 310211 transitions. [2023-12-25 05:48:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-25 05:48:38,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:38,439 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:38,446 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 (25)] Ended with exit code 0 [2023-12-25 05:48:38,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:38,640 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:38,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:38,640 INFO L85 PathProgramCache]: Analyzing trace with hash 263327521, now seen corresponding path program 1 times [2023-12-25 05:48:38,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:38,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91166525] [2023-12-25 05:48:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:38,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:38,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:38,642 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:38,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:48:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:38,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:48:38,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 05:48:38,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:38,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:38,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91166525] [2023-12-25 05:48:38,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91166525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:38,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:38,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:48:38,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443257918] [2023-12-25 05:48:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:38,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:48:38,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:38,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:48:38,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:48:38,960 INFO L87 Difference]: Start difference. First operand 183150 states and 310211 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-25 05:48:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:48:45,943 INFO L93 Difference]: Finished difference Result 183678 states and 310989 transitions. [2023-12-25 05:48:45,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:48:45,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 154 [2023-12-25 05:48:45,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:48:46,844 INFO L225 Difference]: With dead ends: 183678 [2023-12-25 05:48:46,844 INFO L226 Difference]: Without dead ends: 183264 [2023-12-25 05:48:46,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:48:46,914 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 641 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:48:46,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 3004 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:48:47,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183264 states. [2023-12-25 05:48:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183264 to 183260. [2023-12-25 05:48:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183260 states, 152958 states have (on average 1.5844284051831221) internal successors, (242351), 152859 states have internal predecessors, (242351), 30247 states have call successors, (30247), 51 states have call predecessors, (30247), 54 states have return successors, (37787), 30357 states have call predecessors, (37787), 30243 states have call successors, (37787) [2023-12-25 05:48:57,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183260 states to 183260 states and 310385 transitions. [2023-12-25 05:48:57,476 INFO L78 Accepts]: Start accepts. Automaton has 183260 states and 310385 transitions. Word has length 154 [2023-12-25 05:48:57,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:48:57,477 INFO L495 AbstractCegarLoop]: Abstraction has 183260 states and 310385 transitions. [2023-12-25 05:48:57,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-25 05:48:57,477 INFO L276 IsEmpty]: Start isEmpty. Operand 183260 states and 310385 transitions. [2023-12-25 05:48:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 05:48:57,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:48:57,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:48:57,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:48:57,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:57,888 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:48:57,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:48:57,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1302694127, now seen corresponding path program 1 times [2023-12-25 05:48:57,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:48:57,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816601386] [2023-12-25 05:48:57,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:48:57,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:48:57,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:48:57,890 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:48:57,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:48:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:48:58,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 05:48:58,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:48:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:48:58,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:48:58,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:48:58,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [816601386] [2023-12-25 05:48:58,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [816601386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:48:58,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:48:58,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 05:48:58,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189700263] [2023-12-25 05:48:58,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:48:58,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:48:58,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:48:58,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:48:58,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:48:58,514 INFO L87 Difference]: Start difference. First operand 183260 states and 310385 transitions. Second operand has 14 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 6 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-25 05:49:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:14,859 INFO L93 Difference]: Finished difference Result 365931 states and 630572 transitions. [2023-12-25 05:49:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 05:49:14,860 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 6 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 157 [2023-12-25 05:49:14,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:16,877 INFO L225 Difference]: With dead ends: 365931 [2023-12-25 05:49:16,877 INFO L226 Difference]: Without dead ends: 365499 [2023-12-25 05:49:17,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2023-12-25 05:49:17,072 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 976 mSDsluCounter, 5396 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 5989 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:17,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 5989 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 05:49:17,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365499 states.