/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_spec4_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:49:26,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:49:26,124 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 05:49:26,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:49:26,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:49:26,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:49:26,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:49:26,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:49:26,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:49:26,162 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:49:26,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:49:26,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:49:26,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:49:26,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:49:26,164 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:49:26,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:49:26,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:49:26,173 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:49:26,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:49:26,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:49:26,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:49:26,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:49:26,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:49:26,177 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:49:26,177 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:49:26,178 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:49:26,178 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:49:26,178 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:49:26,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:49:26,178 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:49:26,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:49:26,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:49:26,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:49:26,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:49:26,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:49:26,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:49:26,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:49:26,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:49:26,181 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:49:26,182 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:49:26,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:49:26,182 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:49:26,182 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:49:26,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:49:26,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:49:26,183 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:49:26,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:49:26,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:49:26,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:49:26,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:49:26,467 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:49:26,467 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:49:26,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product28.cil.c [2023-12-25 05:49:27,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:49:27,952 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:49:27,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product28.cil.c [2023-12-25 05:49:27,971 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a7ee17d/469b2cd06c6946e5ab1b2b0849f858a6/FLAG9873cbbe1 [2023-12-25 05:49:27,986 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a7ee17d/469b2cd06c6946e5ab1b2b0849f858a6 [2023-12-25 05:49:27,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:49:27,990 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:49:27,994 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:49:27,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:49:27,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:49:27,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:49:27" (1/1) ... [2023-12-25 05:49:28,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f92b89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28, skipping insertion in model container [2023-12-25 05:49:28,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:49:27" (1/1) ... [2023-12-25 05:49:28,081 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:49:28,323 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_spec4_product28.cil.c[8467,8480] [2023-12-25 05:49:28,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:49:28,563 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:49:28,583 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:49:28,612 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_spec4_product28.cil.c[8467,8480] [2023-12-25 05:49:28,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:49:28,715 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:49:28,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-25 05:49:28,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [97] [2023-12-25 05:49:28,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [445] [2023-12-25 05:49:28,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [454] [2023-12-25 05:49:28,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [471] [2023-12-25 05:49:28,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [871] [2023-12-25 05:49:28,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1092] [2023-12-25 05:49:28,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2167] [2023-12-25 05:49:28,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2303] [2023-12-25 05:49:28,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2568] [2023-12-25 05:49:28,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2595] [2023-12-25 05:49:28,769 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_spec4_product28.cil.c[8467,8480] [2023-12-25 05:49:28,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:49:28,891 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:49:28,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28 WrapperNode [2023-12-25 05:49:28,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:49:28,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:49:28,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:49:28,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:49:28,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:28,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:28,998 INFO L138 Inliner]: procedures = 130, calls = 196, calls flagged for inlining = 55, calls inlined = 45, statements flattened = 807 [2023-12-25 05:49:28,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:49:28,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:49:28,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:49:28,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:49:29,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,041 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 05:49:29,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:49:29,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:49:29,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:49:29,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:49:29,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (1/1) ... [2023-12-25 05:49:29,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:49:29,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:49:29,134 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 05:49:29,169 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 05:49:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:49:29,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:49:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:49:29,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:49:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:49:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:49:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:49:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:49:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:49:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:49:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:49:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:49:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:49:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:49:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:49:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:49:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:49:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:49:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:49:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:49:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:49:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:49:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:49:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:49:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:49:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:49:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:49:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:49:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:49:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:49:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:49:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:49:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:49:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:49:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:49:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:49:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:49:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:49:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:49:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:49:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:49:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:49:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:49:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:49:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:49:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:49:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:49:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:49:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:49:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:49:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:49:29,403 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:49:29,409 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:49:30,224 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:49:30,324 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:49:30,324 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:49:30,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:49:30 BoogieIcfgContainer [2023-12-25 05:49:30,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:49:30,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:49:30,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:49:30,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:49:30,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:49:27" (1/3) ... [2023-12-25 05:49:30,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864d704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:49:30, skipping insertion in model container [2023-12-25 05:49:30,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:49:28" (2/3) ... [2023-12-25 05:49:30,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864d704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:49:30, skipping insertion in model container [2023-12-25 05:49:30,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:49:30" (3/3) ... [2023-12-25 05:49:30,335 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product28.cil.c [2023-12-25 05:49:30,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:49:30,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:49:30,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:49:30,422 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;@67585323, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:49:30,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:49:30,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 229 states have (on average 1.5764192139737991) internal successors, (361), 233 states have internal predecessors, (361), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-25 05:49:30,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 05:49:30,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:30,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:30,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:30,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash -413976073, now seen corresponding path program 1 times [2023-12-25 05:49:30,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:30,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203169214] [2023-12-25 05:49:30,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:30,465 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 05:49:30,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:30,469 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 05:49:30,471 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 05:49:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:30,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:49:30,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:30,886 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:49:30,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:30,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:30,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203169214] [2023-12-25 05:49:30,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203169214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:30,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:30,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:49:30,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31314625] [2023-12-25 05:49:30,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:30,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:49:30,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:30,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:49:30,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:49:30,945 INFO L87 Difference]: Start difference. First operand has 303 states, 229 states have (on average 1.5764192139737991) internal successors, (361), 233 states have internal predecessors, (361), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:31,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:31,069 INFO L93 Difference]: Finished difference Result 465 states and 692 transitions. [2023-12-25 05:49:31,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:49:31,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 98 [2023-12-25 05:49:31,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:31,093 INFO L225 Difference]: With dead ends: 465 [2023-12-25 05:49:31,094 INFO L226 Difference]: Without dead ends: 300 [2023-12-25 05:49:31,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 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 05:49:31,103 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:31,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:49:31,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-25 05:49:31,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-12-25 05:49:31,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 227 states have (on average 1.5594713656387664) internal successors, (354), 230 states have internal predecessors, (354), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-25 05:49:31,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 453 transitions. [2023-12-25 05:49:31,187 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 453 transitions. Word has length 98 [2023-12-25 05:49:31,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:31,189 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 453 transitions. [2023-12-25 05:49:31,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:31,189 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 453 transitions. [2023-12-25 05:49:31,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 05:49:31,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:31,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:31,205 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 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:31,403 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 05:49:31,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:31,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:31,404 INFO L85 PathProgramCache]: Analyzing trace with hash 468515798, now seen corresponding path program 1 times [2023-12-25 05:49:31,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:31,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350582429] [2023-12-25 05:49:31,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:31,406 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 05:49:31,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:31,407 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 05:49:31,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:49:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:31,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:49:31,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 05:49:31,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:31,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:31,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350582429] [2023-12-25 05:49:31,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350582429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:31,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:31,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:49:31,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187810847] [2023-12-25 05:49:31,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:31,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:49:31,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:31,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:49:31,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:49:31,835 INFO L87 Difference]: Start difference. First operand 300 states and 453 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:31,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:31,990 INFO L93 Difference]: Finished difference Result 595 states and 900 transitions. [2023-12-25 05:49:31,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:49:31,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 99 [2023-12-25 05:49:31,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:31,995 INFO L225 Difference]: With dead ends: 595 [2023-12-25 05:49:31,995 INFO L226 Difference]: Without dead ends: 302 [2023-12-25 05:49:31,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 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 05:49:32,000 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 8 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:32,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1729 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:49:32,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-25 05:49:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-12-25 05:49:32,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 228 states have (on average 1.5570175438596492) internal successors, (355), 232 states have internal predecessors, (355), 50 states have call successors, (50), 22 states have call predecessors, (50), 23 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2023-12-25 05:49:32,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 456 transitions. [2023-12-25 05:49:32,026 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 456 transitions. Word has length 99 [2023-12-25 05:49:32,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:32,026 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 456 transitions. [2023-12-25 05:49:32,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 456 transitions. [2023-12-25 05:49:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 05:49:32,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:32,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:32,042 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 05:49:32,239 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 05:49:32,240 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:32,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:32,241 INFO L85 PathProgramCache]: Analyzing trace with hash -473480655, now seen corresponding path program 1 times [2023-12-25 05:49:32,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:32,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031928198] [2023-12-25 05:49:32,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:32,242 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 05:49:32,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:32,243 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 05:49:32,244 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 05:49:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:32,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:49:32,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:32,570 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-25 05:49:32,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:32,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:32,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031928198] [2023-12-25 05:49:32,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031928198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:32,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:32,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:49:32,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484990331] [2023-12-25 05:49:32,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:32,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:49:32,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:32,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:49:32,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:49:32,573 INFO L87 Difference]: Start difference. First operand 302 states and 456 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:32,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:32,700 INFO L93 Difference]: Finished difference Result 597 states and 904 transitions. [2023-12-25 05:49:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:49:32,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 100 [2023-12-25 05:49:32,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:32,703 INFO L225 Difference]: With dead ends: 597 [2023-12-25 05:49:32,703 INFO L226 Difference]: Without dead ends: 304 [2023-12-25 05:49:32,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 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 05:49:32,705 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 8 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:32,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1715 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:49:32,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-25 05:49:32,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2023-12-25 05:49:32,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 229 states have (on average 1.554585152838428) internal successors, (356), 234 states have internal predecessors, (356), 50 states have call successors, (50), 22 states have call predecessors, (50), 24 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2023-12-25 05:49:32,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 461 transitions. [2023-12-25 05:49:32,722 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 461 transitions. Word has length 100 [2023-12-25 05:49:32,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:32,722 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 461 transitions. [2023-12-25 05:49:32,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:32,723 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 461 transitions. [2023-12-25 05:49:32,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:49:32,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:32,725 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:49:32,732 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 05:49:32,929 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 05:49:32,930 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:32,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:32,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1035341448, now seen corresponding path program 1 times [2023-12-25 05:49:32,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:32,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34199731] [2023-12-25 05:49:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:32,931 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 05:49:32,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:32,933 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 05:49:32,935 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 05:49:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:33,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:49:33,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:49:33,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:33,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:33,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34199731] [2023-12-25 05:49:33,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34199731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:33,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:33,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:49:33,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229627578] [2023-12-25 05:49:33,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:33,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:49:33,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:33,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:49:33,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:49:33,250 INFO L87 Difference]: Start difference. First operand 304 states and 461 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:33,356 INFO L93 Difference]: Finished difference Result 589 states and 894 transitions. [2023-12-25 05:49:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:49:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2023-12-25 05:49:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:33,359 INFO L225 Difference]: With dead ends: 589 [2023-12-25 05:49:33,360 INFO L226 Difference]: Without dead ends: 304 [2023-12-25 05:49:33,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 05:49:33,362 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 8 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:33,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1729 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:49:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-25 05:49:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2023-12-25 05:49:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 229 states have (on average 1.554585152838428) internal successors, (356), 234 states have internal predecessors, (356), 50 states have call successors, (50), 22 states have call predecessors, (50), 24 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2023-12-25 05:49:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 460 transitions. [2023-12-25 05:49:33,379 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 460 transitions. Word has length 101 [2023-12-25 05:49:33,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:33,380 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 460 transitions. [2023-12-25 05:49:33,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 460 transitions. [2023-12-25 05:49:33,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:49:33,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:33,383 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:33,392 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 05:49:33,591 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 05:49:33,592 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:33,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:33,592 INFO L85 PathProgramCache]: Analyzing trace with hash -736699471, now seen corresponding path program 2 times [2023-12-25 05:49:33,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:33,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671467854] [2023-12-25 05:49:33,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:49:33,594 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 05:49:33,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:33,595 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 05:49:33,598 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 05:49:33,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:49:33,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:49:33,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:49:33,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:33,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:49:33,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:33,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:33,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671467854] [2023-12-25 05:49:33,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671467854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:33,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:33,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:49:33,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814285075] [2023-12-25 05:49:33,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:33,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:49:33,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:33,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:49:33,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:49:33,965 INFO L87 Difference]: Start difference. First operand 304 states and 460 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:34,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:34,430 INFO L93 Difference]: Finished difference Result 592 states and 899 transitions. [2023-12-25 05:49:34,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:49:34,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2023-12-25 05:49:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:34,435 INFO L225 Difference]: With dead ends: 592 [2023-12-25 05:49:34,435 INFO L226 Difference]: Without dead ends: 590 [2023-12-25 05:49:34,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:49:34,437 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 382 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:34,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 2866 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:49:34,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-12-25 05:49:34,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 587. [2023-12-25 05:49:34,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 446 states have (on average 1.562780269058296) internal successors, (697), 453 states have internal predecessors, (697), 94 states have call successors, (94), 43 states have call predecessors, (94), 46 states have return successors, (104), 94 states have call predecessors, (104), 92 states have call successors, (104) [2023-12-25 05:49:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 895 transitions. [2023-12-25 05:49:34,468 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 895 transitions. Word has length 102 [2023-12-25 05:49:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:34,469 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 895 transitions. [2023-12-25 05:49:34,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:34,469 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 895 transitions. [2023-12-25 05:49:34,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:49:34,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:34,472 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:49:34,481 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 05:49:34,680 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 05:49:34,680 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:34,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:34,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1192713586, now seen corresponding path program 1 times [2023-12-25 05:49:34,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:34,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602894634] [2023-12-25 05:49:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:34,682 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 05:49:34,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:34,683 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 05:49:34,684 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 05:49:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:34,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:49:34,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:49:34,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:34,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:34,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602894634] [2023-12-25 05:49:34,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602894634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:34,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:34,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:49:34,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816912920] [2023-12-25 05:49:34,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:34,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:49:34,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:34,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:49:34,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:49:34,974 INFO L87 Difference]: Start difference. First operand 587 states and 895 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:35,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:35,087 INFO L93 Difference]: Finished difference Result 1157 states and 1767 transitions. [2023-12-25 05:49:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:49:35,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2023-12-25 05:49:35,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:35,094 INFO L225 Difference]: With dead ends: 1157 [2023-12-25 05:49:35,094 INFO L226 Difference]: Without dead ends: 589 [2023-12-25 05:49:35,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 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 05:49:35,099 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 6 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:35,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1731 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:49:35,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2023-12-25 05:49:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 589. [2023-12-25 05:49:35,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 447 states have (on average 1.5615212527964206) internal successors, (698), 455 states have internal predecessors, (698), 94 states have call successors, (94), 43 states have call predecessors, (94), 47 states have return successors, (106), 94 states have call predecessors, (106), 92 states have call successors, (106) [2023-12-25 05:49:35,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 898 transitions. [2023-12-25 05:49:35,133 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 898 transitions. Word has length 103 [2023-12-25 05:49:35,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:35,133 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 898 transitions. [2023-12-25 05:49:35,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:35,134 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 898 transitions. [2023-12-25 05:49:35,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:49:35,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:35,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:35,148 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 (7)] Ended with exit code 0 [2023-12-25 05:49:35,345 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 05:49:35,346 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:35,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash 379153122, now seen corresponding path program 1 times [2023-12-25 05:49:35,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:35,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202270658] [2023-12-25 05:49:35,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:35,347 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 05:49:35,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:35,348 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 05:49:35,349 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 05:49:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:35,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:49:35,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:49:35,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:35,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:35,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202270658] [2023-12-25 05:49:35,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202270658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:35,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:35,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:49:35,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266447642] [2023-12-25 05:49:35,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:35,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:49:35,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:35,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:49:35,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:49:35,610 INFO L87 Difference]: Start difference. First operand 589 states and 898 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:35,709 INFO L93 Difference]: Finished difference Result 871 states and 1326 transitions. [2023-12-25 05:49:35,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:49:35,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2023-12-25 05:49:35,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:35,712 INFO L225 Difference]: With dead ends: 871 [2023-12-25 05:49:35,712 INFO L226 Difference]: Without dead ends: 306 [2023-12-25 05:49:35,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 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 05:49:35,714 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 8 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:35,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1716 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:49:35,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-25 05:49:35,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-12-25 05:49:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 230 states have (on average 1.5521739130434782) internal successors, (357), 236 states have internal predecessors, (357), 50 states have call successors, (50), 22 states have call predecessors, (50), 25 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2023-12-25 05:49:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 462 transitions. [2023-12-25 05:49:35,725 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 462 transitions. Word has length 104 [2023-12-25 05:49:35,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:35,725 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 462 transitions. [2023-12-25 05:49:35,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:35,726 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 462 transitions. [2023-12-25 05:49:35,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:49:35,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:35,728 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:35,739 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 05:49:35,935 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 05:49:35,936 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:35,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:35,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1103448086, now seen corresponding path program 1 times [2023-12-25 05:49:35,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:35,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544049008] [2023-12-25 05:49:35,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:35,937 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 05:49:35,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:35,938 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 05:49:35,939 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 05:49:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:36,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:49:36,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:49:36,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:36,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:36,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544049008] [2023-12-25 05:49:36,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544049008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:36,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:36,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:49:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544811134] [2023-12-25 05:49:36,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:36,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:49:36,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:36,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:49:36,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:49:36,215 INFO L87 Difference]: Start difference. First operand 306 states and 462 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:36,325 INFO L93 Difference]: Finished difference Result 591 states and 897 transitions. [2023-12-25 05:49:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:49:36,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2023-12-25 05:49:36,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:36,328 INFO L225 Difference]: With dead ends: 591 [2023-12-25 05:49:36,328 INFO L226 Difference]: Without dead ends: 308 [2023-12-25 05:49:36,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 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 05:49:36,330 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 6 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:36,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1718 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:49:36,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-12-25 05:49:36,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2023-12-25 05:49:36,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 231 states have (on average 1.5497835497835497) internal successors, (358), 238 states have internal predecessors, (358), 50 states have call successors, (50), 22 states have call predecessors, (50), 26 states have return successors, (59), 49 states have call predecessors, (59), 49 states have call successors, (59) [2023-12-25 05:49:36,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 467 transitions. [2023-12-25 05:49:36,342 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 467 transitions. Word has length 104 [2023-12-25 05:49:36,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:36,343 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 467 transitions. [2023-12-25 05:49:36,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:49:36,343 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 467 transitions. [2023-12-25 05:49:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:49:36,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:36,345 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:36,356 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 05:49:36,553 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 05:49:36,554 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:36,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:36,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1067381378, now seen corresponding path program 1 times [2023-12-25 05:49:36,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:36,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170755698] [2023-12-25 05:49:36,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:36,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:49:36,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:36,557 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 05:49:36,558 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 05:49:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:36,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:36,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:36,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:36,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:36,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170755698] [2023-12-25 05:49:36,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170755698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:36,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:36,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:36,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470111724] [2023-12-25 05:49:36,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:36,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:36,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:36,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:36,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:36,800 INFO L87 Difference]: Start difference. First operand 308 states and 467 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:36,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:36,839 INFO L93 Difference]: Finished difference Result 469 states and 693 transitions. [2023-12-25 05:49:36,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:36,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2023-12-25 05:49:36,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:36,862 INFO L225 Difference]: With dead ends: 469 [2023-12-25 05:49:36,862 INFO L226 Difference]: Without dead ends: 310 [2023-12-25 05:49:36,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:36,864 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 0 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:36,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 887 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:36,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-12-25 05:49:36,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2023-12-25 05:49:36,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 233 states have (on average 1.5450643776824033) internal successors, (360), 240 states have internal predecessors, (360), 50 states have call successors, (50), 22 states have call predecessors, (50), 26 states have return successors, (59), 49 states have call predecessors, (59), 49 states have call successors, (59) [2023-12-25 05:49:36,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 469 transitions. [2023-12-25 05:49:36,878 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 469 transitions. Word has length 105 [2023-12-25 05:49:36,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:36,879 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 469 transitions. [2023-12-25 05:49:36,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:36,879 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 469 transitions. [2023-12-25 05:49:36,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 05:49:36,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:36,882 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:36,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-25 05:49:37,091 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 05:49:37,092 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:37,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:37,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1405716173, now seen corresponding path program 1 times [2023-12-25 05:49:37,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:37,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402433404] [2023-12-25 05:49:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:37,093 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 05:49:37,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:37,095 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 05:49:37,100 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 05:49:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:37,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:37,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:37,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:37,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:37,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402433404] [2023-12-25 05:49:37,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402433404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:37,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:37,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:37,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036059006] [2023-12-25 05:49:37,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:37,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:37,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:37,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:37,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:37,336 INFO L87 Difference]: Start difference. First operand 310 states and 469 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:37,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:37,382 INFO L93 Difference]: Finished difference Result 642 states and 984 transitions. [2023-12-25 05:49:37,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:37,382 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2023-12-25 05:49:37,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:37,385 INFO L225 Difference]: With dead ends: 642 [2023-12-25 05:49:37,385 INFO L226 Difference]: Without dead ends: 358 [2023-12-25 05:49:37,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:37,387 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 95 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:37,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 851 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:37,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-25 05:49:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 353. [2023-12-25 05:49:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 265 states have (on average 1.558490566037736) internal successors, (413), 272 states have internal predecessors, (413), 61 states have call successors, (61), 22 states have call predecessors, (61), 26 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2023-12-25 05:49:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 546 transitions. [2023-12-25 05:49:37,402 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 546 transitions. Word has length 110 [2023-12-25 05:49:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:37,403 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 546 transitions. [2023-12-25 05:49:37,403 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 546 transitions. [2023-12-25 05:49:37,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:49:37,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:37,405 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:37,415 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 05:49:37,615 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 05:49:37,615 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:37,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:37,616 INFO L85 PathProgramCache]: Analyzing trace with hash 868232542, now seen corresponding path program 1 times [2023-12-25 05:49:37,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:37,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132963751] [2023-12-25 05:49:37,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:37,617 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 05:49:37,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:37,619 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 05:49:37,623 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 05:49:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:37,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:49:37,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:37,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:49:37,959 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:37,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:37,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132963751] [2023-12-25 05:49:37,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132963751] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:49:37,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:49:37,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:49:37,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277279513] [2023-12-25 05:49:37,961 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:49:37,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:49:37,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:37,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:49:37,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:49:37,963 INFO L87 Difference]: Start difference. First operand 353 states and 546 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:49:38,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:38,194 INFO L93 Difference]: Finished difference Result 822 states and 1321 transitions. [2023-12-25 05:49:38,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:49:38,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 111 [2023-12-25 05:49:38,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:38,200 INFO L225 Difference]: With dead ends: 822 [2023-12-25 05:49:38,200 INFO L226 Difference]: Without dead ends: 663 [2023-12-25 05:49:38,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 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 05:49:38,202 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 494 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:38,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1609 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:49:38,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2023-12-25 05:49:38,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 648. [2023-12-25 05:49:38,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 496 states have (on average 1.6189516129032258) internal successors, (803), 503 states have internal predecessors, (803), 125 states have call successors, (125), 22 states have call predecessors, (125), 26 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2023-12-25 05:49:38,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1074 transitions. [2023-12-25 05:49:38,230 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1074 transitions. Word has length 111 [2023-12-25 05:49:38,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:38,231 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1074 transitions. [2023-12-25 05:49:38,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:49:38,231 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1074 transitions. [2023-12-25 05:49:38,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 05:49:38,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:38,235 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:49:38,243 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 05:49:38,442 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 05:49:38,443 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:38,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:38,443 INFO L85 PathProgramCache]: Analyzing trace with hash 593859387, now seen corresponding path program 1 times [2023-12-25 05:49:38,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:38,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84677353] [2023-12-25 05:49:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:38,444 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 05:49:38,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:38,446 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 05:49:38,480 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 05:49:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:38,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:38,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:38,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:38,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:38,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84677353] [2023-12-25 05:49:38,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84677353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:38,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:38,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:38,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596232920] [2023-12-25 05:49:38,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:38,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:38,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:38,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:38,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:38,697 INFO L87 Difference]: Start difference. First operand 648 states and 1074 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:38,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:38,759 INFO L93 Difference]: Finished difference Result 1533 states and 2577 transitions. [2023-12-25 05:49:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:38,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2023-12-25 05:49:38,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:38,766 INFO L225 Difference]: With dead ends: 1533 [2023-12-25 05:49:38,766 INFO L226 Difference]: Without dead ends: 945 [2023-12-25 05:49:38,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 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 05:49:38,770 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 93 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:38,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 890 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:38,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2023-12-25 05:49:38,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 940. [2023-12-25 05:49:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 724 states have (on average 1.6298342541436464) internal successors, (1180), 731 states have internal predecessors, (1180), 189 states have call successors, (189), 22 states have call predecessors, (189), 26 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2023-12-25 05:49:38,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1589 transitions. [2023-12-25 05:49:38,815 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1589 transitions. Word has length 117 [2023-12-25 05:49:38,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:38,815 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1589 transitions. [2023-12-25 05:49:38,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:38,815 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1589 transitions. [2023-12-25 05:49:38,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:49:38,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:38,821 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:49:38,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:39,029 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 05:49:39,030 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:39,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:39,030 INFO L85 PathProgramCache]: Analyzing trace with hash -803479539, now seen corresponding path program 1 times [2023-12-25 05:49:39,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:39,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698547976] [2023-12-25 05:49:39,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:39,031 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 05:49:39,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:39,032 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 05:49:39,033 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 05:49:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:39,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:39,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:39,266 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:39,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:39,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:39,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698547976] [2023-12-25 05:49:39,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1698547976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:39,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:39,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:39,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459226020] [2023-12-25 05:49:39,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:39,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:39,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:39,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:39,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:39,269 INFO L87 Difference]: Start difference. First operand 940 states and 1589 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:39,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:39,374 INFO L93 Difference]: Finished difference Result 2230 states and 3788 transitions. [2023-12-25 05:49:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:39,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2023-12-25 05:49:39,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:39,383 INFO L225 Difference]: With dead ends: 2230 [2023-12-25 05:49:39,383 INFO L226 Difference]: Without dead ends: 1400 [2023-12-25 05:49:39,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 05:49:39,389 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 91 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:39,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 884 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:39,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2023-12-25 05:49:39,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1395. [2023-12-25 05:49:39,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1084 states have (on average 1.636531365313653) internal successors, (1774), 1091 states have internal predecessors, (1774), 284 states have call successors, (284), 22 states have call predecessors, (284), 26 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2023-12-25 05:49:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 2373 transitions. [2023-12-25 05:49:39,459 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 2373 transitions. Word has length 118 [2023-12-25 05:49:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:39,460 INFO L495 AbstractCegarLoop]: Abstraction has 1395 states and 2373 transitions. [2023-12-25 05:49:39,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 2373 transitions. [2023-12-25 05:49:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 05:49:39,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:39,470 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:49:39,484 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 05:49:39,684 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 05:49:39,685 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:39,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:39,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1159932381, now seen corresponding path program 1 times [2023-12-25 05:49:39,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:39,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480747502] [2023-12-25 05:49:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:39,687 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 05:49:39,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:39,688 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 05:49:39,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:49:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:39,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:39,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:39,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:39,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:39,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480747502] [2023-12-25 05:49:39,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480747502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:39,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:39,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:39,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839473387] [2023-12-25 05:49:39,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:39,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:39,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:39,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:39,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:39,941 INFO L87 Difference]: Start difference. First operand 1395 states and 2373 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:40,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:40,041 INFO L93 Difference]: Finished difference Result 3248 states and 5566 transitions. [2023-12-25 05:49:40,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:40,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2023-12-25 05:49:40,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:40,053 INFO L225 Difference]: With dead ends: 3248 [2023-12-25 05:49:40,053 INFO L226 Difference]: Without dead ends: 2083 [2023-12-25 05:49:40,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 05:49:40,059 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 89 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:40,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 878 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:40,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2023-12-25 05:49:40,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2078. [2023-12-25 05:49:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 1644 states have (on average 1.6423357664233578) internal successors, (2700), 1651 states have internal predecessors, (2700), 407 states have call successors, (407), 22 states have call predecessors, (407), 26 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2023-12-25 05:49:40,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 3561 transitions. [2023-12-25 05:49:40,175 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 3561 transitions. Word has length 119 [2023-12-25 05:49:40,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:40,175 INFO L495 AbstractCegarLoop]: Abstraction has 2078 states and 3561 transitions. [2023-12-25 05:49:40,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:40,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 3561 transitions. [2023-12-25 05:49:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:49:40,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:40,189 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:40,203 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 05:49:40,397 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 05:49:40,398 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:40,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:40,398 INFO L85 PathProgramCache]: Analyzing trace with hash -2092714002, now seen corresponding path program 1 times [2023-12-25 05:49:40,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:40,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394255348] [2023-12-25 05:49:40,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:40,399 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 05:49:40,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:40,401 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 05:49:40,403 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 05:49:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:40,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:40,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:40,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:40,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:40,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394255348] [2023-12-25 05:49:40,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394255348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:40,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:40,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:40,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124982654] [2023-12-25 05:49:40,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:40,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:40,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:40,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:40,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:40,669 INFO L87 Difference]: Start difference. First operand 2078 states and 3561 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:40,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:40,806 INFO L93 Difference]: Finished difference Result 4818 states and 8314 transitions. [2023-12-25 05:49:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:40,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-12-25 05:49:40,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:40,827 INFO L225 Difference]: With dead ends: 4818 [2023-12-25 05:49:40,827 INFO L226 Difference]: Without dead ends: 3167 [2023-12-25 05:49:40,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 05:49:40,837 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 87 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:40,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 878 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:40,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2023-12-25 05:49:40,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3162. [2023-12-25 05:49:41,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3162 states, 2549 states have (on average 1.6461357395056886) internal successors, (4196), 2556 states have internal predecessors, (4196), 586 states have call successors, (586), 22 states have call predecessors, (586), 26 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2023-12-25 05:49:41,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 5441 transitions. [2023-12-25 05:49:41,018 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 5441 transitions. Word has length 120 [2023-12-25 05:49:41,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:41,019 INFO L495 AbstractCegarLoop]: Abstraction has 3162 states and 5441 transitions. [2023-12-25 05:49:41,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:41,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 5441 transitions. [2023-12-25 05:49:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:49:41,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:41,034 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:49:41,048 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 05:49:41,242 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 05:49:41,242 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:41,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:41,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1525973785, now seen corresponding path program 1 times [2023-12-25 05:49:41,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:41,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175051082] [2023-12-25 05:49:41,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:41,244 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 05:49:41,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:41,245 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 05:49:41,248 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 05:49:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:41,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:41,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:41,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:41,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:41,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175051082] [2023-12-25 05:49:41,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175051082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:41,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:41,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:41,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771143666] [2023-12-25 05:49:41,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:41,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:41,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:41,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:41,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:41,526 INFO L87 Difference]: Start difference. First operand 3162 states and 5441 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:41,724 INFO L93 Difference]: Finished difference Result 7649 states and 13226 transitions. [2023-12-25 05:49:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:41,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2023-12-25 05:49:41,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:41,757 INFO L225 Difference]: With dead ends: 7649 [2023-12-25 05:49:41,757 INFO L226 Difference]: Without dead ends: 5137 [2023-12-25 05:49:41,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 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 05:49:41,768 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 85 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:41,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 895 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:41,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2023-12-25 05:49:42,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5132. [2023-12-25 05:49:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5132 states, 4143 states have (on average 1.6381848901762008) internal successors, (6787), 4150 states have internal predecessors, (6787), 962 states have call successors, (962), 22 states have call predecessors, (962), 26 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2023-12-25 05:49:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5132 states to 5132 states and 8828 transitions. [2023-12-25 05:49:42,109 INFO L78 Accepts]: Start accepts. Automaton has 5132 states and 8828 transitions. Word has length 121 [2023-12-25 05:49:42,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:42,110 INFO L495 AbstractCegarLoop]: Abstraction has 5132 states and 8828 transitions. [2023-12-25 05:49:42,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:42,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5132 states and 8828 transitions. [2023-12-25 05:49:42,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:49:42,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:42,132 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-25 05:49:42,139 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 05:49:42,339 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 05:49:42,340 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:42,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:42,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2080387762, now seen corresponding path program 1 times [2023-12-25 05:49:42,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:42,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847772940] [2023-12-25 05:49:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:42,341 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 05:49:42,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:42,343 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 05:49:42,377 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 05:49:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:42,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:42,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:42,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:42,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:42,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847772940] [2023-12-25 05:49:42,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847772940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:42,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:42,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:42,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038014045] [2023-12-25 05:49:42,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:42,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:42,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:42,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:42,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:42,600 INFO L87 Difference]: Start difference. First operand 5132 states and 8828 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:42,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:42,900 INFO L93 Difference]: Finished difference Result 12630 states and 21863 transitions. [2023-12-25 05:49:42,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:42,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-12-25 05:49:42,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:42,957 INFO L225 Difference]: With dead ends: 12630 [2023-12-25 05:49:42,957 INFO L226 Difference]: Without dead ends: 8514 [2023-12-25 05:49:42,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 05:49:42,976 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 83 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:42,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 881 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8514 states. [2023-12-25 05:49:43,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8514 to 8509. [2023-12-25 05:49:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8509 states, 6914 states have (on average 1.6358113971651722) internal successors, (11310), 6921 states have internal predecessors, (11310), 1568 states have call successors, (1568), 22 states have call predecessors, (1568), 26 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2023-12-25 05:49:43,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8509 states to 8509 states and 14641 transitions. [2023-12-25 05:49:43,441 INFO L78 Accepts]: Start accepts. Automaton has 8509 states and 14641 transitions. Word has length 122 [2023-12-25 05:49:43,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:43,441 INFO L495 AbstractCegarLoop]: Abstraction has 8509 states and 14641 transitions. [2023-12-25 05:49:43,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:43,441 INFO L276 IsEmpty]: Start isEmpty. Operand 8509 states and 14641 transitions. [2023-12-25 05:49:43,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:49:43,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:43,470 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:49:43,478 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 05:49:43,678 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 05:49:43,679 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:43,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:43,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1929376667, now seen corresponding path program 1 times [2023-12-25 05:49:43,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:43,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264551942] [2023-12-25 05:49:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:43,680 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 05:49:43,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:43,681 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 05:49:43,682 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 05:49:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:43,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:43,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:43,910 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:43,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:43,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:43,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264551942] [2023-12-25 05:49:43,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264551942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:43,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:43,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:43,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686072474] [2023-12-25 05:49:43,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:43,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:43,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:43,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:43,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:43,915 INFO L87 Difference]: Start difference. First operand 8509 states and 14641 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:44,439 INFO L93 Difference]: Finished difference Result 21982 states and 37981 transitions. [2023-12-25 05:49:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:44,440 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2023-12-25 05:49:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:44,506 INFO L225 Difference]: With dead ends: 21982 [2023-12-25 05:49:44,506 INFO L226 Difference]: Without dead ends: 14898 [2023-12-25 05:49:44,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:44,540 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 81 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:44,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 898 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:44,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14898 states. [2023-12-25 05:49:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14898 to 14893. [2023-12-25 05:49:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14893 states, 12095 states have (on average 1.6260438197602316) internal successors, (19667), 12102 states have internal predecessors, (19667), 2771 states have call successors, (2771), 22 states have call predecessors, (2771), 26 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2023-12-25 05:49:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14893 states to 14893 states and 25548 transitions. [2023-12-25 05:49:45,472 INFO L78 Accepts]: Start accepts. Automaton has 14893 states and 25548 transitions. Word has length 123 [2023-12-25 05:49:45,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:45,472 INFO L495 AbstractCegarLoop]: Abstraction has 14893 states and 25548 transitions. [2023-12-25 05:49:45,473 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 14893 states and 25548 transitions. [2023-12-25 05:49:45,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:49:45,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:45,518 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:49:45,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:49:45,726 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 05:49:45,726 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:45,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1294665267, now seen corresponding path program 1 times [2023-12-25 05:49:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:45,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410137164] [2023-12-25 05:49:45,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:45,728 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 05:49:45,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:45,729 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 05:49:45,730 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 05:49:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:45,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:45,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:45,987 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:45,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:45,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:45,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410137164] [2023-12-25 05:49:45,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410137164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:45,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:45,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:45,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966359561] [2023-12-25 05:49:45,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:45,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:45,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:45,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:45,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:45,991 INFO L87 Difference]: Start difference. First operand 14893 states and 25548 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:47,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:47,002 INFO L93 Difference]: Finished difference Result 39341 states and 67827 transitions. [2023-12-25 05:49:47,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:47,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2023-12-25 05:49:47,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:47,136 INFO L225 Difference]: With dead ends: 39341 [2023-12-25 05:49:47,136 INFO L226 Difference]: Without dead ends: 26465 [2023-12-25 05:49:47,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 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 05:49:47,184 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 79 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:47,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 881 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:47,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26465 states. [2023-12-25 05:49:48,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26465 to 26460. [2023-12-25 05:49:48,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26460 states, 21623 states have (on average 1.6219765989918142) internal successors, (35072), 21630 states have internal predecessors, (35072), 4810 states have call successors, (4810), 22 states have call predecessors, (4810), 26 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2023-12-25 05:49:48,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26460 states to 26460 states and 45305 transitions. [2023-12-25 05:49:48,678 INFO L78 Accepts]: Start accepts. Automaton has 26460 states and 45305 transitions. Word has length 124 [2023-12-25 05:49:48,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:48,679 INFO L495 AbstractCegarLoop]: Abstraction has 26460 states and 45305 transitions. [2023-12-25 05:49:48,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:48,679 INFO L276 IsEmpty]: Start isEmpty. Operand 26460 states and 45305 transitions. [2023-12-25 05:49:48,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:49:48,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:48,721 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:49:48,732 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 05:49:48,929 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 05:49:48,930 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:48,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:48,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1751403395, now seen corresponding path program 1 times [2023-12-25 05:49:48,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:48,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481904873] [2023-12-25 05:49:48,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:48,931 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 05:49:48,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:48,932 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 05:49:48,934 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 05:49:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:49,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:49,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:49,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:49,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:49,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481904873] [2023-12-25 05:49:49,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481904873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:49,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:49,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:49,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209684491] [2023-12-25 05:49:49,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:49,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:49,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:49,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:49,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:49,179 INFO L87 Difference]: Start difference. First operand 26460 states and 45305 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:50,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:50,862 INFO L93 Difference]: Finished difference Result 71953 states and 123719 transitions. [2023-12-25 05:49:50,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:50,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2023-12-25 05:49:50,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:51,128 INFO L225 Difference]: With dead ends: 71953 [2023-12-25 05:49:51,129 INFO L226 Difference]: Without dead ends: 48225 [2023-12-25 05:49:51,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 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 05:49:51,220 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 77 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:51,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 887 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:51,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48225 states. [2023-12-25 05:49:54,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48225 to 48220. [2023-12-25 05:49:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48220 states, 39668 states have (on average 1.6165170918624585) internal successors, (64124), 39675 states have internal predecessors, (64124), 8525 states have call successors, (8525), 22 states have call predecessors, (8525), 26 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2023-12-25 05:49:54,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48220 states to 48220 states and 82319 transitions. [2023-12-25 05:49:54,391 INFO L78 Accepts]: Start accepts. Automaton has 48220 states and 82319 transitions. Word has length 125 [2023-12-25 05:49:54,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:49:54,391 INFO L495 AbstractCegarLoop]: Abstraction has 48220 states and 82319 transitions. [2023-12-25 05:49:54,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:54,391 INFO L276 IsEmpty]: Start isEmpty. Operand 48220 states and 82319 transitions. [2023-12-25 05:49:54,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:49:54,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:49:54,437 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:49:54,452 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 05:49:54,653 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 05:49:54,653 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:49:54,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:49:54,654 INFO L85 PathProgramCache]: Analyzing trace with hash -47176237, now seen corresponding path program 1 times [2023-12-25 05:49:54,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:49:54,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235086508] [2023-12-25 05:49:54,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:49:54,655 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 05:49:54,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:49:54,656 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 05:49:54,676 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 05:49:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:49:54,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:49:54,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:49:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:49:54,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:49:54,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:49:54,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235086508] [2023-12-25 05:49:54,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235086508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:49:54,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:49:54,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:49:54,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770718969] [2023-12-25 05:49:54,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:49:54,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:49:54,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:49:54,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:49:54,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:49:54,937 INFO L87 Difference]: Start difference. First operand 48220 states and 82319 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:49:57,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:49:57,800 INFO L93 Difference]: Finished difference Result 89672 states and 153514 transitions. [2023-12-25 05:49:57,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:49:57,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2023-12-25 05:49:57,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:49:58,175 INFO L225 Difference]: With dead ends: 89672 [2023-12-25 05:49:58,175 INFO L226 Difference]: Without dead ends: 89513 [2023-12-25 05:49:58,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 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 05:49:58,242 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 75 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:49:58,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 881 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:49:58,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89513 states. [2023-12-25 05:50:02,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89513 to 89508. [2023-12-25 05:50:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89508 states, 74157 states have (on average 1.6094771902854754) internal successors, (119354), 74164 states have internal predecessors, (119354), 15324 states have call successors, (15324), 22 states have call predecessors, (15324), 26 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2023-12-25 05:50:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89508 states to 89508 states and 152193 transitions. [2023-12-25 05:50:03,118 INFO L78 Accepts]: Start accepts. Automaton has 89508 states and 152193 transitions. Word has length 126 [2023-12-25 05:50:03,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:03,118 INFO L495 AbstractCegarLoop]: Abstraction has 89508 states and 152193 transitions. [2023-12-25 05:50:03,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:50:03,119 INFO L276 IsEmpty]: Start isEmpty. Operand 89508 states and 152193 transitions. [2023-12-25 05:50:03,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:50:03,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:03,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:50:03,192 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 05:50:03,389 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 05:50:03,390 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:03,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:03,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1341870980, now seen corresponding path program 1 times [2023-12-25 05:50:03,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:03,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879176383] [2023-12-25 05:50:03,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:03,391 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 05:50:03,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:03,393 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 05:50:03,397 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 05:50:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:03,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:50:03,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:50:03,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:50:04,066 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 05:50:04,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:04,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879176383] [2023-12-25 05:50:04,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879176383] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:50:04,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:50:04,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:50:04,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049055615] [2023-12-25 05:50:04,067 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:50:04,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:50:04,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:04,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:50:04,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:50:04,069 INFO L87 Difference]: Start difference. First operand 89508 states and 152193 transitions. Second operand has 16 states, 16 states have (on average 10.0625) internal successors, (161), 14 states have internal predecessors, (161), 4 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-25 05:50:15,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:15,677 INFO L93 Difference]: Finished difference Result 263301 states and 454333 transitions. [2023-12-25 05:50:15,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:50:15,679 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.0625) internal successors, (161), 14 states have internal predecessors, (161), 4 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) Word has length 127 [2023-12-25 05:50:15,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:17,376 INFO L225 Difference]: With dead ends: 263301 [2023-12-25 05:50:17,376 INFO L226 Difference]: Without dead ends: 263149 [2023-12-25 05:50:17,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:50:17,497 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 1872 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 3745 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 4203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 3745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:17,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 2324 Invalid, 4203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 3745 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:50:17,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263149 states. [2023-12-25 05:50:28,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263149 to 179017. [2023-12-25 05:50:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179017 states, 148317 states have (on average 1.6094783470539453) internal successors, (238713), 148328 states have internal predecessors, (238713), 30646 states have call successors, (30646), 45 states have call predecessors, (30646), 53 states have return successors, (39393), 30647 states have call predecessors, (39393), 30644 states have call successors, (39393) [2023-12-25 05:50:29,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179017 states to 179017 states and 308752 transitions. [2023-12-25 05:50:29,253 INFO L78 Accepts]: Start accepts. Automaton has 179017 states and 308752 transitions. Word has length 127 [2023-12-25 05:50:29,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:29,253 INFO L495 AbstractCegarLoop]: Abstraction has 179017 states and 308752 transitions. [2023-12-25 05:50:29,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.0625) internal successors, (161), 14 states have internal predecessors, (161), 4 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-25 05:50:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 179017 states and 308752 transitions. [2023-12-25 05:50:29,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:50:29,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:29,713 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:29,721 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 05:50:29,920 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 05:50:29,921 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:29,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:29,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1382001881, now seen corresponding path program 1 times [2023-12-25 05:50:29,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:29,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638763036] [2023-12-25 05:50:29,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:29,922 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 05:50:29,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:29,923 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 05:50:29,955 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 05:50:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:30,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:50:30,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:30,271 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:50:30,271 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:30,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:30,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638763036] [2023-12-25 05:50:30,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638763036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:30,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:30,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:50:30,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376424516] [2023-12-25 05:50:30,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:30,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:50:30,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:30,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:50:30,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:50:30,273 INFO L87 Difference]: Start difference. First operand 179017 states and 308752 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:50:37,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:37,039 INFO L93 Difference]: Finished difference Result 179461 states and 309407 transitions. [2023-12-25 05:50:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:50:37,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 128 [2023-12-25 05:50:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:37,886 INFO L225 Difference]: With dead ends: 179461 [2023-12-25 05:50:37,886 INFO L226 Difference]: Without dead ends: 179083 [2023-12-25 05:50:37,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 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 05:50:37,952 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 576 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:50:37,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 2811 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:50:38,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179083 states. [2023-12-25 05:50:47,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179083 to 179079. [2023-12-25 05:50:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179079 states, 148362 states have (on average 1.6094080694517463) internal successors, (238775), 148375 states have internal predecessors, (238775), 30662 states have call successors, (30662), 47 states have call predecessors, (30662), 54 states have return successors, (39414), 30662 states have call predecessors, (39414), 30660 states have call successors, (39414) [2023-12-25 05:50:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179079 states to 179079 states and 308851 transitions. [2023-12-25 05:50:48,681 INFO L78 Accepts]: Start accepts. Automaton has 179079 states and 308851 transitions. Word has length 128 [2023-12-25 05:50:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:50:48,683 INFO L495 AbstractCegarLoop]: Abstraction has 179079 states and 308851 transitions. [2023-12-25 05:50:48,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:50:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 179079 states and 308851 transitions. [2023-12-25 05:50:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:50:48,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:50:48,788 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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 05:50:48,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:50:48,990 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 05:50:48,991 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:50:48,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:50:48,991 INFO L85 PathProgramCache]: Analyzing trace with hash 641117299, now seen corresponding path program 1 times [2023-12-25 05:50:48,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:50:48,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464629411] [2023-12-25 05:50:48,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:50:48,992 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 05:50:48,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:50:48,993 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 05:50:48,994 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 05:50:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:50:49,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:50:49,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:50:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:50:49,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:50:49,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:50:49,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464629411] [2023-12-25 05:50:49,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464629411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:50:49,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:50:49,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:50:49,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597741343] [2023-12-25 05:50:49,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:50:49,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:50:49,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:50:49,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:50:49,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:50:49,237 INFO L87 Difference]: Start difference. First operand 179079 states and 308851 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:50:56,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:50:56,954 INFO L93 Difference]: Finished difference Result 266264 states and 459282 transitions. [2023-12-25 05:50:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:50:56,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2023-12-25 05:50:56,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:50:57,905 INFO L225 Difference]: With dead ends: 266264 [2023-12-25 05:50:57,906 INFO L226 Difference]: Without dead ends: 176720 [2023-12-25 05:50:58,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:50:58,094 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 10 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1717 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 05:50:58,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1717 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:50:58,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176720 states. [2023-12-25 05:51:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176720 to 176714. [2023-12-25 05:51:07,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176714 states, 146449 states have (on average 1.610280712056757) internal successors, (235824), 146349 states have internal predecessors, (235824), 30213 states have call successors, (30213), 47 states have call predecessors, (30213), 51 states have return successors, (37757), 30323 states have call predecessors, (37757), 30211 states have call successors, (37757) [2023-12-25 05:51:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176714 states to 176714 states and 303794 transitions. [2023-12-25 05:51:08,078 INFO L78 Accepts]: Start accepts. Automaton has 176714 states and 303794 transitions. Word has length 128 [2023-12-25 05:51:08,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:51:08,078 INFO L495 AbstractCegarLoop]: Abstraction has 176714 states and 303794 transitions. [2023-12-25 05:51:08,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:51:08,079 INFO L276 IsEmpty]: Start isEmpty. Operand 176714 states and 303794 transitions. [2023-12-25 05:51:08,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:51:08,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:51:08,188 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:51:08,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:51:08,388 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 05:51:08,389 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:51:08,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:51:08,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2018075898, now seen corresponding path program 1 times [2023-12-25 05:51:08,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:51:08,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214203326] [2023-12-25 05:51:08,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:51:08,390 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 05:51:08,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:51:08,391 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 05:51:08,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:51:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:51:08,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:51:08,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:51:09,295 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:51:09,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:51:09,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:51:09,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214203326] [2023-12-25 05:51:09,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214203326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:51:09,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:51:09,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-25 05:51:09,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637744677] [2023-12-25 05:51:09,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:51:09,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 05:51:09,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:51:09,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 05:51:09,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:51:09,298 INFO L87 Difference]: Start difference. First operand 176714 states and 303794 transitions. Second operand has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 10 states have internal predecessors, (97), 6 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-25 05:51:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:51:25,127 INFO L93 Difference]: Finished difference Result 352657 states and 617041 transitions. [2023-12-25 05:51:25,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 05:51:25,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 10 states have internal predecessors, (97), 6 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 131 [2023-12-25 05:51:25,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:51:27,021 INFO L225 Difference]: With dead ends: 352657 [2023-12-25 05:51:27,022 INFO L226 Difference]: Without dead ends: 352317 [2023-12-25 05:51:27,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2023-12-25 05:51:27,208 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 875 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:51:27,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 4899 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 05:51:27,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352317 states. [2023-12-25 05:51:49,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352317 to 352161. [2023-12-25 05:51:50,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352161 states, 291948 states have (on average 1.611139655007056) internal successors, (470369), 291566 states have internal predecessors, (470369), 60077 states have call successors, (60077), 123 states have call predecessors, (60077), 135 states have return successors, (84775), 60489 states have call predecessors, (84775), 60071 states have call successors, (84775) [2023-12-25 05:51:52,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352161 states to 352161 states and 615221 transitions. [2023-12-25 05:51:52,484 INFO L78 Accepts]: Start accepts. Automaton has 352161 states and 615221 transitions. Word has length 131 [2023-12-25 05:51:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:51:52,484 INFO L495 AbstractCegarLoop]: Abstraction has 352161 states and 615221 transitions. [2023-12-25 05:51:52,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.083333333333334) internal successors, (97), 10 states have internal predecessors, (97), 6 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-25 05:51:52,485 INFO L276 IsEmpty]: Start isEmpty. Operand 352161 states and 615221 transitions. [2023-12-25 05:51:53,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:51:53,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:51:53,144 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:51:53,151 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 05:51:53,345 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 05:51:53,345 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:51:53,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:51:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash -632239762, now seen corresponding path program 1 times [2023-12-25 05:51:53,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:51:53,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381236878] [2023-12-25 05:51:53,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:51:53,346 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 05:51:53,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:51:53,347 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 05:51:53,348 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 05:51:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:51:53,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:51:53,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:51:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:51:53,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:51:53,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:51:53,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381236878] [2023-12-25 05:51:53,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381236878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:51:53,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:51:53,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 05:51:53,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162758047] [2023-12-25 05:51:53,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:51:53,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 05:51:53,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:51:53,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 05:51:53,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:51:53,770 INFO L87 Difference]: Start difference. First operand 352161 states and 615221 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 8 states have internal predecessors, (94), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-12-25 05:52:08,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:52:08,837 INFO L93 Difference]: Finished difference Result 353187 states and 616711 transitions. [2023-12-25 05:52:08,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 05:52:08,838 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 8 states have internal predecessors, (94), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 132 [2023-12-25 05:52:08,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:52:10,803 INFO L225 Difference]: With dead ends: 353187 [2023-12-25 05:52:10,804 INFO L226 Difference]: Without dead ends: 352175 [2023-12-25 05:52:11,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:52:11,016 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 636 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:52:11,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 3083 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:52:11,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352175 states. [2023-12-25 05:52:31,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352175 to 352173. [2023-12-25 05:52:32,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352173 states, 291954 states have (on average 1.6111270953643382) internal successors, (470375), 291578 states have internal predecessors, (470375), 60077 states have call successors, (60077), 123 states have call predecessors, (60077), 141 states have return successors, (84789), 60489 states have call predecessors, (84789), 60071 states have call successors, (84789) [2023-12-25 05:52:34,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352173 states to 352173 states and 615241 transitions. [2023-12-25 05:52:34,818 INFO L78 Accepts]: Start accepts. Automaton has 352173 states and 615241 transitions. Word has length 132 [2023-12-25 05:52:34,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:52:34,819 INFO L495 AbstractCegarLoop]: Abstraction has 352173 states and 615241 transitions. [2023-12-25 05:52:34,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 8 states have internal predecessors, (94), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-12-25 05:52:34,819 INFO L276 IsEmpty]: Start isEmpty. Operand 352173 states and 615241 transitions. [2023-12-25 05:52:35,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:52:35,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:52:35,375 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:52:35,395 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 (27)] Ended with exit code 0 [2023-12-25 05:52:35,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:35,598 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:52:35,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:52:35,598 INFO L85 PathProgramCache]: Analyzing trace with hash -527620996, now seen corresponding path program 1 times [2023-12-25 05:52:35,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:52:35,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777670311] [2023-12-25 05:52:35,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:52:35,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:52:35,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:52:35,601 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:52:35,632 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 (28)] Waiting until timeout for monitored process [2023-12-25 05:52:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:52:35,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:52:35,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:52:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:52:36,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:52:36,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:52:36,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777670311] [2023-12-25 05:52:36,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777670311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:52:36,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:52:36,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-25 05:52:36,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319717742] [2023-12-25 05:52:36,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:52:36,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 05:52:36,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:52:36,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 05:52:36,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:52:36,290 INFO L87 Difference]: Start difference. First operand 352173 states and 615241 transitions. Second operand has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 10 states have internal predecessors, (98), 6 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-25 05:53:10,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:53:10,447 INFO L93 Difference]: Finished difference Result 700166 states and 1244861 transitions. [2023-12-25 05:53:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 05:53:10,447 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 10 states have internal predecessors, (98), 6 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 132 [2023-12-25 05:53:10,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:53:14,707 INFO L225 Difference]: With dead ends: 700166 [2023-12-25 05:53:14,707 INFO L226 Difference]: Without dead ends: 699478 [2023-12-25 05:53:15,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2023-12-25 05:53:15,095 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 863 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:53:15,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 4410 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 05:53:15,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699478 states. [2023-12-25 05:54:00,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699478 to 699176. [2023-12-25 05:54:01,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699176 states, 579776 states have (on average 1.6124589496633182) internal successors, (934865), 578827 states have internal predecessors, (934865), 119084 states have call successors, (119084), 273 states have call predecessors, (119084), 315 states have return successors, (188328), 120117 states have call predecessors, (188328), 119070 states have call successors, (188328) [2023-12-25 05:54:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699176 states to 699176 states and 1242277 transitions. [2023-12-25 05:54:07,173 INFO L78 Accepts]: Start accepts. Automaton has 699176 states and 1242277 transitions. Word has length 132 [2023-12-25 05:54:07,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:54:07,173 INFO L495 AbstractCegarLoop]: Abstraction has 699176 states and 1242277 transitions. [2023-12-25 05:54:07,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 10 states have internal predecessors, (98), 6 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-25 05:54:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 699176 states and 1242277 transitions. [2023-12-25 05:54:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:54:07,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:54:07,557 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:54:07,564 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:54:07,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:54:07,758 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:54:07,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:54:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 165480701, now seen corresponding path program 1 times [2023-12-25 05:54:07,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:54:07,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489290741] [2023-12-25 05:54:07,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:54:07,759 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 05:54:07,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:54:07,760 INFO L229 MonitoredProcess]: Starting monitored process 29 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 05:54:07,762 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 (29)] Waiting until timeout for monitored process