/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_spec9_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:58:09,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:58:09,359 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 05:58:09,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:58:09,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:58:09,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:58:09,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:58:09,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:58:09,386 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:58:09,389 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:58:09,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:58:09,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:58:09,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:58:09,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:58:09,392 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:58:09,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:58:09,392 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:58:09,393 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:58:09,393 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:58:09,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:58:09,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:58:09,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:58:09,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:58:09,394 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:58:09,394 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:58:09,394 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:58:09,394 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:58:09,395 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:58:09,395 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:58:09,395 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:58:09,396 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:58:09,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:58:09,396 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:58:09,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:58:09,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:58:09,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:58:09,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:58:09,397 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:58:09,397 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:58:09,397 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:58:09,397 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:58:09,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:58:09,398 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:58:09,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:58:09,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:58:09,398 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:58:09,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:58:09,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:58:09,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:58:09,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:58:09,639 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:58:09,639 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:58:09,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c [2023-12-25 05:58:10,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:58:11,157 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:58:11,158 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c [2023-12-25 05:58:11,186 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf6660ce/8dfeb90ae699411e93e59996d24f71db/FLAG248edcf60 [2023-12-25 05:58:11,202 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf6660ce/8dfeb90ae699411e93e59996d24f71db [2023-12-25 05:58:11,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:58:11,206 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:58:11,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:58:11,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:58:11,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:58:11,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:58:11" (1/1) ... [2023-12-25 05:58:11,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42030fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:11, skipping insertion in model container [2023-12-25 05:58:11,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:58:11" (1/1) ... [2023-12-25 05:58:11,280 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:58:11,789 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c[63802,63815] [2023-12-25 05:58:11,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:58:11,810 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:58:11,829 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:58:11,902 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_spec9_product28.cil.c[63802,63815] [2023-12-25 05:58:11,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:58:11,916 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:58:11,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [48] [2023-12-25 05:58:11,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [105] [2023-12-25 05:58:11,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [122] [2023-12-25 05:58:11,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [160] [2023-12-25 05:58:11,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [505] [2023-12-25 05:58:11,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [726] [2023-12-25 05:58:11,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1801] [2023-12-25 05:58:11,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2167] [2023-12-25 05:58:11,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2432] [2023-12-25 05:58:11,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2571] [2023-12-25 05:58:11,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2968] [2023-12-25 05:58:12,036 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_spec9_product28.cil.c[63802,63815] [2023-12-25 05:58:12,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:58:12,059 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:58:12,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12 WrapperNode [2023-12-25 05:58:12,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:58:12,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:58:12,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:58:12,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:58:12,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,145 INFO L138 Inliner]: procedures = 131, calls = 199, calls flagged for inlining = 56, calls inlined = 46, statements flattened = 818 [2023-12-25 05:58:12,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:58:12,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:58:12,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:58:12,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:58:12,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,177 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,203 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 05:58:12,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:58:12,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:58:12,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:58:12,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:58:12,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (1/1) ... [2023-12-25 05:58:12,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:58:12,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:58:12,312 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 05:58:12,320 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 05:58:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:58:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:58:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:58:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:58:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:58:12,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:58:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:58:12,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:58:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:58:12,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:58:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:58:12,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:58:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:58:12,338 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:58:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:58:12,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:58:12,338 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:58:12,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:58:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:58:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:58:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:58:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:58:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:58:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:58:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:58:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:58:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:58:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:58:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:58:12,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:58:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:58:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:58:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:58:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:58:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:58:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:58:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:58:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:58:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:58:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:58:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:58:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:58:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:58:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:58:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:58:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:58:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:58:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:58:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:58:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:58:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:58:12,506 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:58:12,509 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:58:13,170 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:58:13,240 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:58:13,241 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:58:13,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:58:13 BoogieIcfgContainer [2023-12-25 05:58:13,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:58:13,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:58:13,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:58:13,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:58:13,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:58:11" (1/3) ... [2023-12-25 05:58:13,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a57948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:58:13, skipping insertion in model container [2023-12-25 05:58:13,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:12" (2/3) ... [2023-12-25 05:58:13,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a57948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:58:13, skipping insertion in model container [2023-12-25 05:58:13,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:58:13" (3/3) ... [2023-12-25 05:58:13,248 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product28.cil.c [2023-12-25 05:58:13,263 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:58:13,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:58:13,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:58:13,323 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;@53ee29ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:58:13,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:58:13,330 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 05:58:13,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:58:13,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:13,355 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:13,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:13,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:13,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1674852989, now seen corresponding path program 1 times [2023-12-25 05:58:13,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:13,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913445908] [2023-12-25 05:58:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:13,372 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 05:58:13,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:13,374 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 05:58:13,424 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 05:58:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:13,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:58:13,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:58:13,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:13,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913445908] [2023-12-25 05:58:13,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913445908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:13,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:13,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:58:13,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685225950] [2023-12-25 05:58:13,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:13,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:58:13,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:13,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:58:13,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:58:13,738 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 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:13,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:13,809 INFO L93 Difference]: Finished difference Result 465 states and 692 transitions. [2023-12-25 05:58:13,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:58:13,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-25 05:58:13,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:13,832 INFO L225 Difference]: With dead ends: 465 [2023-12-25 05:58:13,832 INFO L226 Difference]: Without dead ends: 300 [2023-12-25 05:58:13,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 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 05:58:13,838 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:13,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 446 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:13,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-25 05:58:13,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-12-25 05:58:13,912 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 05:58:13,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 453 transitions. [2023-12-25 05:58:13,929 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 453 transitions. Word has length 92 [2023-12-25 05:58:13,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:13,930 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 453 transitions. [2023-12-25 05:58:13,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:13,930 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 453 transitions. [2023-12-25 05:58:13,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 05:58:13,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:13,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:13,966 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 05:58:14,155 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 05:58:14,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:14,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:14,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2120346786, now seen corresponding path program 1 times [2023-12-25 05:58:14,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:14,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982994192] [2023-12-25 05:58:14,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:14,158 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 05:58:14,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:14,167 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 05:58:14,168 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 05:58:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:14,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:58:14,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 05:58:14,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:14,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:14,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982994192] [2023-12-25 05:58:14,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982994192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:14,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:14,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967668299] [2023-12-25 05:58:14,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:14,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:14,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:14,501 INFO L87 Difference]: Start difference. First operand 300 states and 453 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:14,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:14,612 INFO L93 Difference]: Finished difference Result 595 states and 900 transitions. [2023-12-25 05:58:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:14,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 93 [2023-12-25 05:58:14,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:14,616 INFO L225 Difference]: With dead ends: 595 [2023-12-25 05:58:14,616 INFO L226 Difference]: Without dead ends: 302 [2023-12-25 05:58:14,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 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 05:58:14,619 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 8 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1725 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 05:58:14,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1725 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:14,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-25 05:58:14,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-12-25 05:58:14,634 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 05:58:14,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 456 transitions. [2023-12-25 05:58:14,637 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 456 transitions. Word has length 93 [2023-12-25 05:58:14,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:14,637 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 456 transitions. [2023-12-25 05:58:14,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:14,637 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 456 transitions. [2023-12-25 05:58:14,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 05:58:14,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:14,640 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:14,659 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 05:58:14,846 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 05:58:14,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:14,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:14,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1133758379, now seen corresponding path program 1 times [2023-12-25 05:58:14,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:14,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955859362] [2023-12-25 05:58:14,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:14,848 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 05:58:14,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:14,855 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 05:58:14,856 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 05:58:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:15,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:58:15,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:15,124 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 05:58:15,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:15,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:15,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955859362] [2023-12-25 05:58:15,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955859362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:15,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:15,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:15,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613398559] [2023-12-25 05:58:15,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:15,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:15,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:15,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:15,128 INFO L87 Difference]: Start difference. First operand 302 states and 456 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:15,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:15,245 INFO L93 Difference]: Finished difference Result 597 states and 904 transitions. [2023-12-25 05:58:15,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:15,246 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 94 [2023-12-25 05:58:15,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:15,251 INFO L225 Difference]: With dead ends: 597 [2023-12-25 05:58:15,251 INFO L226 Difference]: Without dead ends: 304 [2023-12-25 05:58:15,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:58:15,255 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 8 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1711 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 05:58:15,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1711 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:15,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-25 05:58:15,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2023-12-25 05:58:15,291 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 05:58:15,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 461 transitions. [2023-12-25 05:58:15,293 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 461 transitions. Word has length 94 [2023-12-25 05:58:15,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:15,293 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 461 transitions. [2023-12-25 05:58:15,293 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 461 transitions. [2023-12-25 05:58:15,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 05:58:15,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:15,295 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:15,307 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 05:58:15,504 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 05:58:15,505 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:15,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:15,505 INFO L85 PathProgramCache]: Analyzing trace with hash -898877952, now seen corresponding path program 1 times [2023-12-25 05:58:15,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:15,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11245190] [2023-12-25 05:58:15,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:15,506 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 05:58:15,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:15,510 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 05:58:15,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:58:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:15,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:58:15,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:58:15,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:15,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:15,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11245190] [2023-12-25 05:58:15,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11245190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:15,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:15,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:15,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943762957] [2023-12-25 05:58:15,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:15,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:15,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:15,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:15,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:15,785 INFO L87 Difference]: Start difference. First operand 304 states and 461 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:15,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:15,864 INFO L93 Difference]: Finished difference Result 589 states and 894 transitions. [2023-12-25 05:58:15,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:15,865 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2023-12-25 05:58:15,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:15,867 INFO L225 Difference]: With dead ends: 589 [2023-12-25 05:58:15,867 INFO L226 Difference]: Without dead ends: 304 [2023-12-25 05:58:15,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:58:15,869 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 8 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1725 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 05:58:15,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1725 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:15,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-25 05:58:15,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2023-12-25 05:58:15,877 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 05:58:15,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 460 transitions. [2023-12-25 05:58:15,879 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 460 transitions. Word has length 95 [2023-12-25 05:58:15,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:15,879 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 460 transitions. [2023-12-25 05:58:15,879 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, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:15,879 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 460 transitions. [2023-12-25 05:58:15,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:58:15,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:15,881 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:15,901 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 05:58:16,102 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 05:58:16,103 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:16,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:16,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1021405611, now seen corresponding path program 2 times [2023-12-25 05:58:16,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:16,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788209668] [2023-12-25 05:58:16,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:58:16,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:58:16,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:16,108 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 05:58:16,125 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 05:58:16,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:58:16,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:58:16,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:16,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-25 05:58:16,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:16,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:16,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788209668] [2023-12-25 05:58:16,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788209668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:16,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:16,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:16,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049803100] [2023-12-25 05:58:16,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:16,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:16,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:16,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:16,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:16,313 INFO L87 Difference]: Start difference. First operand 304 states and 460 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:16,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:16,357 INFO L93 Difference]: Finished difference Result 465 states and 686 transitions. [2023-12-25 05:58:16,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:16,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2023-12-25 05:58:16,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:16,361 INFO L225 Difference]: With dead ends: 465 [2023-12-25 05:58:16,361 INFO L226 Difference]: Without dead ends: 306 [2023-12-25 05:58:16,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 05:58:16,363 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:16,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 885 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:16,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-25 05:58:16,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-12-25 05:58:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 231 states have (on average 1.5497835497835497) internal successors, (358), 236 states have internal predecessors, (358), 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 05:58:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 462 transitions. [2023-12-25 05:58:16,378 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 462 transitions. Word has length 96 [2023-12-25 05:58:16,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:16,380 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 462 transitions. [2023-12-25 05:58:16,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:16,380 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 462 transitions. [2023-12-25 05:58:16,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:58:16,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:16,382 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] [2023-12-25 05:58:16,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 05:58:16,584 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 05:58:16,585 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:16,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1577161243, now seen corresponding path program 1 times [2023-12-25 05:58:16,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:16,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381374126] [2023-12-25 05:58:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:16,586 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 05:58:16,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:16,587 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 05:58:16,589 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 05:58:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:16,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:58:16,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:16,847 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:58:16,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:16,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:16,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381374126] [2023-12-25 05:58:16,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381374126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:16,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:16,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:16,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920028258] [2023-12-25 05:58:16,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:16,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:16,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:16,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:16,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:16,849 INFO L87 Difference]: Start difference. First operand 306 states and 462 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:16,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:16,930 INFO L93 Difference]: Finished difference Result 595 states and 901 transitions. [2023-12-25 05:58:16,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:16,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2023-12-25 05:58:16,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:16,932 INFO L225 Difference]: With dead ends: 595 [2023-12-25 05:58:16,933 INFO L226 Difference]: Without dead ends: 308 [2023-12-25 05:58:16,934 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 05:58:16,934 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 6 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:16,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1727 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:16,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-12-25 05:58:16,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2023-12-25 05:58:16,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 232 states have (on average 1.5474137931034482) internal successors, (359), 238 states have internal predecessors, (359), 50 states have call successors, (50), 22 states have call predecessors, (50), 25 states have return successors, (56), 49 states have call predecessors, (56), 49 states have call successors, (56) [2023-12-25 05:58:16,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 465 transitions. [2023-12-25 05:58:16,943 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 465 transitions. Word has length 101 [2023-12-25 05:58:16,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:16,944 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 465 transitions. [2023-12-25 05:58:16,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:16,944 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 465 transitions. [2023-12-25 05:58:16,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:58:16,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:16,945 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:16,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:58:17,152 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 05:58:17,152 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:17,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash -801350251, now seen corresponding path program 1 times [2023-12-25 05:58:17,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:17,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085277450] [2023-12-25 05:58:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:17,153 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 05:58:17,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:17,155 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 05:58:17,160 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 05:58:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:17,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:58:17,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:17,389 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:58:17,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:17,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:17,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085277450] [2023-12-25 05:58:17,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085277450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:17,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:17,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:17,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578459411] [2023-12-25 05:58:17,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:17,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:17,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:17,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:17,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:17,391 INFO L87 Difference]: Start difference. First operand 308 states and 465 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:17,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:17,477 INFO L93 Difference]: Finished difference Result 593 states and 896 transitions. [2023-12-25 05:58:17,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:17,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 102 [2023-12-25 05:58:17,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:17,479 INFO L225 Difference]: With dead ends: 593 [2023-12-25 05:58:17,479 INFO L226 Difference]: Without dead ends: 308 [2023-12-25 05:58:17,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 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 05:58:17,481 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 8 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:17,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1712 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:17,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-12-25 05:58:17,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2023-12-25 05:58:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 232 states have (on average 1.5474137931034482) internal successors, (359), 238 states have internal predecessors, (359), 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 05:58:17,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 464 transitions. [2023-12-25 05:58:17,490 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 464 transitions. Word has length 102 [2023-12-25 05:58:17,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:17,490 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 464 transitions. [2023-12-25 05:58:17,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:17,491 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 464 transitions. [2023-12-25 05:58:17,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:58:17,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:17,492 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] [2023-12-25 05:58:17,511 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 05:58:17,711 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 05:58:17,712 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:17,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2111442420, now seen corresponding path program 2 times [2023-12-25 05:58:17,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:17,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801466770] [2023-12-25 05:58:17,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:58:17,713 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 05:58:17,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:17,714 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 05:58:17,717 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 05:58:17,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 05:58:17,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:58:17,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:58:17,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:18,026 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:58:18,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:18,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:18,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801466770] [2023-12-25 05:58:18,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801466770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:18,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:18,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:18,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114878634] [2023-12-25 05:58:18,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:18,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:18,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:18,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:18,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:18,028 INFO L87 Difference]: Start difference. First operand 308 states and 464 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:18,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:18,129 INFO L93 Difference]: Finished difference Result 595 states and 901 transitions. [2023-12-25 05:58:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:18,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 103 [2023-12-25 05:58:18,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:18,132 INFO L225 Difference]: With dead ends: 595 [2023-12-25 05:58:18,132 INFO L226 Difference]: Without dead ends: 310 [2023-12-25 05:58:18,133 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 05:58:18,133 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 6 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:18,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1714 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:18,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-12-25 05:58:18,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2023-12-25 05:58:18,141 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 05:58:18,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 469 transitions. [2023-12-25 05:58:18,143 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 469 transitions. Word has length 103 [2023-12-25 05:58:18,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:18,143 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 469 transitions. [2023-12-25 05:58:18,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:58:18,143 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 469 transitions. [2023-12-25 05:58:18,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:58:18,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:18,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:18,164 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 05:58:18,351 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 05:58:18,351 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:18,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:18,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2058092592, now seen corresponding path program 1 times [2023-12-25 05:58:18,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:18,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116015484] [2023-12-25 05:58:18,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:18,353 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 05:58:18,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:18,354 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 05:58:18,356 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 05:58:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:18,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:18,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:18,600 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:18,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:18,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:18,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116015484] [2023-12-25 05:58:18,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116015484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:18,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:18,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:18,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022836582] [2023-12-25 05:58:18,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:18,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:18,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:18,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:18,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:18,602 INFO L87 Difference]: Start difference. First operand 310 states and 469 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:18,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:18,640 INFO L93 Difference]: Finished difference Result 642 states and 984 transitions. [2023-12-25 05:58:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:18,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2023-12-25 05:58:18,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:18,643 INFO L225 Difference]: With dead ends: 642 [2023-12-25 05:58:18,643 INFO L226 Difference]: Without dead ends: 358 [2023-12-25 05:58:18,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:18,649 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 95 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:18,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 861 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:18,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-25 05:58:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 353. [2023-12-25 05:58:18,661 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 05:58:18,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 546 transitions. [2023-12-25 05:58:18,662 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 546 transitions. Word has length 104 [2023-12-25 05:58:18,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:18,663 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 546 transitions. [2023-12-25 05:58:18,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 546 transitions. [2023-12-25 05:58:18,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:58:18,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:18,665 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:18,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:58:18,872 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 05:58:18,873 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:18,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:18,874 INFO L85 PathProgramCache]: Analyzing trace with hash 230255241, now seen corresponding path program 1 times [2023-12-25 05:58:18,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:18,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53775586] [2023-12-25 05:58:18,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:18,875 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 05:58:18,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:18,876 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 05:58:18,915 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 05:58:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:19,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:58:19,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:19,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:58:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:19,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:19,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53775586] [2023-12-25 05:58:19,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53775586] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:58:19,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:58:19,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:58:19,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685015705] [2023-12-25 05:58:19,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:58:19,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:58:19,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:19,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:58:19,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:58:19,161 INFO L87 Difference]: Start difference. First operand 353 states and 546 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:58:19,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:19,350 INFO L93 Difference]: Finished difference Result 822 states and 1321 transitions. [2023-12-25 05:58:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:58:19,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 105 [2023-12-25 05:58:19,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:19,354 INFO L225 Difference]: With dead ends: 822 [2023-12-25 05:58:19,354 INFO L226 Difference]: Without dead ends: 663 [2023-12-25 05:58:19,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 204 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 05:58:19,356 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 327 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:19,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1978 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:58:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2023-12-25 05:58:19,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 648. [2023-12-25 05:58:19,375 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 05:58:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1074 transitions. [2023-12-25 05:58:19,378 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1074 transitions. Word has length 105 [2023-12-25 05:58:19,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:19,378 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1074 transitions. [2023-12-25 05:58:19,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:58:19,378 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1074 transitions. [2023-12-25 05:58:19,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:58:19,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:19,381 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:19,401 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 05:58:19,608 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 05:58:19,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:19,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:19,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1424036646, now seen corresponding path program 1 times [2023-12-25 05:58:19,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:19,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174251011] [2023-12-25 05:58:19,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:19,610 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 05:58:19,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:19,613 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 05:58:19,614 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 05:58:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:19,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:19,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:19,837 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:19,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:19,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:19,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174251011] [2023-12-25 05:58:19,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174251011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:19,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:19,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:19,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603710860] [2023-12-25 05:58:19,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:19,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:19,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:19,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:19,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:19,840 INFO L87 Difference]: Start difference. First operand 648 states and 1074 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:19,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:19,893 INFO L93 Difference]: Finished difference Result 1533 states and 2577 transitions. [2023-12-25 05:58:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-12-25 05:58:19,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:19,898 INFO L225 Difference]: With dead ends: 1533 [2023-12-25 05:58:19,898 INFO L226 Difference]: Without dead ends: 945 [2023-12-25 05:58:19,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:19,900 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 93 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 888 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 05:58:19,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 888 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:19,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2023-12-25 05:58:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 940. [2023-12-25 05:58:19,933 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 05:58:19,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1589 transitions. [2023-12-25 05:58:19,937 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1589 transitions. Word has length 111 [2023-12-25 05:58:19,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:19,937 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1589 transitions. [2023-12-25 05:58:19,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:19,937 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1589 transitions. [2023-12-25 05:58:19,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:58:19,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:19,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:19,965 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 05:58:20,150 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 05:58:20,150 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:20,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:20,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2086109936, now seen corresponding path program 1 times [2023-12-25 05:58:20,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:20,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842907649] [2023-12-25 05:58:20,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:20,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:58:20,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:20,154 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 05:58:20,154 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 05:58:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:20,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:20,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:20,399 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:20,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:20,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:20,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842907649] [2023-12-25 05:58:20,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842907649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:20,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:20,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:20,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442054713] [2023-12-25 05:58:20,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:20,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:20,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:20,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:20,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:20,401 INFO L87 Difference]: Start difference. First operand 940 states and 1589 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:20,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:20,499 INFO L93 Difference]: Finished difference Result 2230 states and 3788 transitions. [2023-12-25 05:58:20,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:20,500 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2023-12-25 05:58:20,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:20,506 INFO L225 Difference]: With dead ends: 2230 [2023-12-25 05:58:20,506 INFO L226 Difference]: Without dead ends: 1400 [2023-12-25 05:58:20,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 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 05:58:20,510 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 91 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:20,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 879 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:20,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2023-12-25 05:58:20,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1395. [2023-12-25 05:58:20,564 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 05:58:20,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 2373 transitions. [2023-12-25 05:58:20,570 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 2373 transitions. Word has length 112 [2023-12-25 05:58:20,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:20,570 INFO L495 AbstractCegarLoop]: Abstraction has 1395 states and 2373 transitions. [2023-12-25 05:58:20,570 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:20,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 2373 transitions. [2023-12-25 05:58:20,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:58:20,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:20,576 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:20,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-25 05:58:20,781 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 05:58:20,782 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:20,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:20,783 INFO L85 PathProgramCache]: Analyzing trace with hash 218611272, now seen corresponding path program 1 times [2023-12-25 05:58:20,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:20,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785404805] [2023-12-25 05:58:20,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:20,784 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 05:58:20,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:20,785 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 05:58:20,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:58:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:20,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:20,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:20,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:20,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:20,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785404805] [2023-12-25 05:58:20,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785404805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:20,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:20,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:20,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101627931] [2023-12-25 05:58:20,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:20,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:20,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:20,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:20,993 INFO L87 Difference]: Start difference. First operand 1395 states and 2373 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:21,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:21,089 INFO L93 Difference]: Finished difference Result 3248 states and 5566 transitions. [2023-12-25 05:58:21,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:21,089 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-12-25 05:58:21,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:21,098 INFO L225 Difference]: With dead ends: 3248 [2023-12-25 05:58:21,099 INFO L226 Difference]: Without dead ends: 2083 [2023-12-25 05:58:21,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 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 05:58:21,104 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 89 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 876 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 05:58:21,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 876 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:21,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2023-12-25 05:58:21,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2078. [2023-12-25 05:58:21,189 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 05:58:21,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 3561 transitions. [2023-12-25 05:58:21,197 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 3561 transitions. Word has length 113 [2023-12-25 05:58:21,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:21,197 INFO L495 AbstractCegarLoop]: Abstraction has 2078 states and 3561 transitions. [2023-12-25 05:58:21,197 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:21,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 3561 transitions. [2023-12-25 05:58:21,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:58:21,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:21,205 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:21,227 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 05:58:21,411 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 05:58:21,412 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:21,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:21,412 INFO L85 PathProgramCache]: Analyzing trace with hash 84901553, now seen corresponding path program 1 times [2023-12-25 05:58:21,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:21,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705406169] [2023-12-25 05:58:21,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:21,413 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 05:58:21,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:21,414 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 05:58:21,440 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 05:58:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:21,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:21,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:21,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:21,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:21,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705406169] [2023-12-25 05:58:21,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705406169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:21,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:21,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:21,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549323356] [2023-12-25 05:58:21,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:21,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:21,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:21,691 INFO L87 Difference]: Start difference. First operand 2078 states and 3561 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:21,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:21,881 INFO L93 Difference]: Finished difference Result 4818 states and 8314 transitions. [2023-12-25 05:58:21,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:21,882 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2023-12-25 05:58:21,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:21,897 INFO L225 Difference]: With dead ends: 4818 [2023-12-25 05:58:21,897 INFO L226 Difference]: Without dead ends: 3167 [2023-12-25 05:58:21,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 05:58:21,903 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 87 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 876 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 05:58:21,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 876 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:21,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2023-12-25 05:58:22,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3162. [2023-12-25 05:58:22,042 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 05:58:22,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 5441 transitions. [2023-12-25 05:58:22,054 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 5441 transitions. Word has length 114 [2023-12-25 05:58:22,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:22,055 INFO L495 AbstractCegarLoop]: Abstraction has 3162 states and 5441 transitions. [2023-12-25 05:58:22,055 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 5441 transitions. [2023-12-25 05:58:22,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:58:22,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:22,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:22,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-25 05:58:22,290 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 05:58:22,290 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:22,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:22,291 INFO L85 PathProgramCache]: Analyzing trace with hash 815130500, now seen corresponding path program 1 times [2023-12-25 05:58:22,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:22,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530063923] [2023-12-25 05:58:22,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:22,292 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 05:58:22,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:22,293 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 05:58:22,312 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 05:58:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:22,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:22,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:22,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:22,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:22,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530063923] [2023-12-25 05:58:22,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530063923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:22,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:22,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:22,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780323189] [2023-12-25 05:58:22,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:22,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:22,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:22,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:22,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:22,524 INFO L87 Difference]: Start difference. First operand 3162 states and 5441 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:22,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:22,763 INFO L93 Difference]: Finished difference Result 7649 states and 13226 transitions. [2023-12-25 05:58:22,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:22,763 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2023-12-25 05:58:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:22,786 INFO L225 Difference]: With dead ends: 7649 [2023-12-25 05:58:22,786 INFO L226 Difference]: Without dead ends: 5137 [2023-12-25 05:58:22,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 05:58:22,796 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 85 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 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 05:58:22,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 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 05:58:22,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2023-12-25 05:58:23,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5132. [2023-12-25 05:58:23,044 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 05:58:23,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5132 states to 5132 states and 8828 transitions. [2023-12-25 05:58:23,066 INFO L78 Accepts]: Start accepts. Automaton has 5132 states and 8828 transitions. Word has length 115 [2023-12-25 05:58:23,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:23,067 INFO L495 AbstractCegarLoop]: Abstraction has 5132 states and 8828 transitions. [2023-12-25 05:58:23,067 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:23,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5132 states and 8828 transitions. [2023-12-25 05:58:23,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:58:23,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:23,082 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:23,098 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 05:58:23,288 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 05:58:23,288 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:23,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:23,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1606121099, now seen corresponding path program 1 times [2023-12-25 05:58:23,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:23,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256882842] [2023-12-25 05:58:23,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:23,289 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 05:58:23,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:23,290 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 05:58:23,332 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 05:58:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:23,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:23,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:23,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:23,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:23,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256882842] [2023-12-25 05:58:23,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256882842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:23,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:23,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:23,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670560324] [2023-12-25 05:58:23,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:23,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:23,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:23,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:23,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:23,527 INFO L87 Difference]: Start difference. First operand 5132 states and 8828 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:23,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:23,808 INFO L93 Difference]: Finished difference Result 12630 states and 21863 transitions. [2023-12-25 05:58:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:23,809 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2023-12-25 05:58:23,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:23,848 INFO L225 Difference]: With dead ends: 12630 [2023-12-25 05:58:23,848 INFO L226 Difference]: Without dead ends: 8514 [2023-12-25 05:58:23,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 05:58:23,864 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 83 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 883 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 05:58:23,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 883 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:23,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8514 states. [2023-12-25 05:58:24,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8514 to 8509. [2023-12-25 05:58:24,248 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 05:58:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8509 states to 8509 states and 14641 transitions. [2023-12-25 05:58:24,278 INFO L78 Accepts]: Start accepts. Automaton has 8509 states and 14641 transitions. Word has length 116 [2023-12-25 05:58:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:24,278 INFO L495 AbstractCegarLoop]: Abstraction has 8509 states and 14641 transitions. [2023-12-25 05:58:24,279 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 8509 states and 14641 transitions. [2023-12-25 05:58:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 05:58:24,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:24,302 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:24,322 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 05:58:24,507 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 05:58:24,508 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:24,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash 616158342, now seen corresponding path program 1 times [2023-12-25 05:58:24,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:24,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577857514] [2023-12-25 05:58:24,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:24,509 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 05:58:24,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:24,510 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 05:58:24,511 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 05:58:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:24,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:24,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:24,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:24,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:24,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577857514] [2023-12-25 05:58:24,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577857514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:24,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:24,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:24,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761913005] [2023-12-25 05:58:24,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:24,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:24,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:24,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:24,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:24,741 INFO L87 Difference]: Start difference. First operand 8509 states and 14641 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:25,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:25,169 INFO L93 Difference]: Finished difference Result 21982 states and 37981 transitions. [2023-12-25 05:58:25,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:25,170 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2023-12-25 05:58:25,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:25,240 INFO L225 Difference]: With dead ends: 21982 [2023-12-25 05:58:25,241 INFO L226 Difference]: Without dead ends: 14898 [2023-12-25 05:58:25,272 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 05:58:25,273 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 81 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 888 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 05:58:25,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 888 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:25,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14898 states. [2023-12-25 05:58:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14898 to 14893. [2023-12-25 05:58:25,910 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 05:58:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14893 states to 14893 states and 25548 transitions. [2023-12-25 05:58:25,968 INFO L78 Accepts]: Start accepts. Automaton has 14893 states and 25548 transitions. Word has length 117 [2023-12-25 05:58:25,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:25,968 INFO L495 AbstractCegarLoop]: Abstraction has 14893 states and 25548 transitions. [2023-12-25 05:58:25,968 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14893 states and 25548 transitions. [2023-12-25 05:58:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:58:26,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:26,002 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:26,024 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 05:58:26,211 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 05:58:26,212 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:26,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:26,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1350385334, now seen corresponding path program 1 times [2023-12-25 05:58:26,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:26,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076254490] [2023-12-25 05:58:26,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:26,213 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 05:58:26,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:26,229 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 05:58:26,244 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 (19)] Waiting until timeout for monitored process [2023-12-25 05:58:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:26,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:26,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:26,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:26,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:26,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076254490] [2023-12-25 05:58:26,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076254490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:26,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:26,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:26,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630792460] [2023-12-25 05:58:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:26,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:26,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:26,547 INFO L87 Difference]: Start difference. First operand 14893 states and 25548 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:27,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:27,209 INFO L93 Difference]: Finished difference Result 39341 states and 67827 transitions. [2023-12-25 05:58:27,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:27,209 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2023-12-25 05:58:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:27,321 INFO L225 Difference]: With dead ends: 39341 [2023-12-25 05:58:27,321 INFO L226 Difference]: Without dead ends: 26465 [2023-12-25 05:58:27,360 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 05:58:27,361 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 79 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 879 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 05:58:27,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 879 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:27,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26465 states. [2023-12-25 05:58:28,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26465 to 26460. [2023-12-25 05:58:28,461 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 05:58:28,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26460 states to 26460 states and 45305 transitions. [2023-12-25 05:58:28,555 INFO L78 Accepts]: Start accepts. Automaton has 26460 states and 45305 transitions. Word has length 118 [2023-12-25 05:58:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:28,555 INFO L495 AbstractCegarLoop]: Abstraction has 26460 states and 45305 transitions. [2023-12-25 05:58:28,555 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 26460 states and 45305 transitions. [2023-12-25 05:58:28,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 05:58:28,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:28,587 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:28,610 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 05:58:28,793 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 05:58:28,793 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:28,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:28,794 INFO L85 PathProgramCache]: Analyzing trace with hash 133765608, now seen corresponding path program 1 times [2023-12-25 05:58:28,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:28,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318270472] [2023-12-25 05:58:28,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:28,794 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 05:58:28,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:28,810 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 05:58:28,848 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 05:58:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:29,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:29,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:29,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:29,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:29,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318270472] [2023-12-25 05:58:29,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318270472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:29,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:29,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:29,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930485634] [2023-12-25 05:58:29,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:29,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:29,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:29,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:29,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:29,054 INFO L87 Difference]: Start difference. First operand 26460 states and 45305 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:30,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:30,508 INFO L93 Difference]: Finished difference Result 71953 states and 123719 transitions. [2023-12-25 05:58:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:30,509 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2023-12-25 05:58:30,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:30,669 INFO L225 Difference]: With dead ends: 71953 [2023-12-25 05:58:30,669 INFO L226 Difference]: Without dead ends: 48225 [2023-12-25 05:58:30,845 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 05:58:30,846 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 77 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 883 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 05:58:30,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 883 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:30,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48225 states. [2023-12-25 05:58:32,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48225 to 48220. [2023-12-25 05:58:32,955 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 05:58:33,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48220 states to 48220 states and 82319 transitions. [2023-12-25 05:58:33,141 INFO L78 Accepts]: Start accepts. Automaton has 48220 states and 82319 transitions. Word has length 119 [2023-12-25 05:58:33,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:33,141 INFO L495 AbstractCegarLoop]: Abstraction has 48220 states and 82319 transitions. [2023-12-25 05:58:33,141 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:33,141 INFO L276 IsEmpty]: Start isEmpty. Operand 48220 states and 82319 transitions. [2023-12-25 05:58:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:58:33,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:33,172 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:33,196 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 05:58:33,378 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 05:58:33,378 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:33,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:33,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1145062230, now seen corresponding path program 1 times [2023-12-25 05:58:33,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:33,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908532713] [2023-12-25 05:58:33,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:33,379 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 05:58:33,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:33,381 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 05:58:33,418 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 05:58:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:33,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:33,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-25 05:58:33,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:33,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:33,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908532713] [2023-12-25 05:58:33,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908532713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:33,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:33,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:33,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748764892] [2023-12-25 05:58:33,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:33,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:33,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:33,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:33,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:33,597 INFO L87 Difference]: Start difference. First operand 48220 states and 82319 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:36,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:36,364 INFO L93 Difference]: Finished difference Result 89672 states and 153514 transitions. [2023-12-25 05:58:36,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:36,365 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2023-12-25 05:58:36,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:36,730 INFO L225 Difference]: With dead ends: 89672 [2023-12-25 05:58:36,731 INFO L226 Difference]: Without dead ends: 89513 [2023-12-25 05:58:36,784 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 05:58:36,785 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 75 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 879 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 05:58:36,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 879 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:36,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89513 states. [2023-12-25 05:58:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89513 to 89508. [2023-12-25 05:58:40,095 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 05:58:40,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89508 states to 89508 states and 152193 transitions. [2023-12-25 05:58:40,388 INFO L78 Accepts]: Start accepts. Automaton has 89508 states and 152193 transitions. Word has length 120 [2023-12-25 05:58:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:40,388 INFO L495 AbstractCegarLoop]: Abstraction has 89508 states and 152193 transitions. [2023-12-25 05:58:40,388 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, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:58:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 89508 states and 152193 transitions. [2023-12-25 05:58:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:58:40,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:40,421 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:40,444 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 05:58:40,627 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 05:58:40,627 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:40,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:40,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1898950695, now seen corresponding path program 1 times [2023-12-25 05:58:40,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:40,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503002294] [2023-12-25 05:58:40,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:40,628 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 05:58:40,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:40,630 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 05:58:40,662 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 05:58:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:40,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:58:40,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:58:40,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:58:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:58:41,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:41,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503002294] [2023-12-25 05:58:41,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503002294] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:58:41,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:58:41,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:58:41,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044914541] [2023-12-25 05:58:41,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:58:41,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:58:41,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:41,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:58:41,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:58:41,714 INFO L87 Difference]: Start difference. First operand 89508 states and 152193 transitions. Second operand has 16 states, 16 states have (on average 9.6875) internal successors, (155), 14 states have internal predecessors, (155), 4 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-25 05:58:52,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:52,905 INFO L93 Difference]: Finished difference Result 263301 states and 454331 transitions. [2023-12-25 05:58:52,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:58:52,905 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.6875) internal successors, (155), 14 states have internal predecessors, (155), 4 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 121 [2023-12-25 05:58:52,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:54,332 INFO L225 Difference]: With dead ends: 263301 [2023-12-25 05:58:54,333 INFO L226 Difference]: Without dead ends: 263149 [2023-12-25 05:58:54,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 227 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 05:58:54,469 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 1870 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 3691 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1926 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 4148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 3691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:54,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1926 Valid, 2234 Invalid, 4148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 3691 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:58:54,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263149 states. [2023-12-25 05:59:05,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263149 to 179017. [2023-12-25 05:59:05,664 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, (39392), 30647 states have call predecessors, (39392), 30644 states have call successors, (39392) [2023-12-25 05:59:06,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179017 states to 179017 states and 308751 transitions. [2023-12-25 05:59:06,829 INFO L78 Accepts]: Start accepts. Automaton has 179017 states and 308751 transitions. Word has length 121 [2023-12-25 05:59:06,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:59:06,829 INFO L495 AbstractCegarLoop]: Abstraction has 179017 states and 308751 transitions. [2023-12-25 05:59:06,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.6875) internal successors, (155), 14 states have internal predecessors, (155), 4 states have call successors, (26), 6 states have call predecessors, (26), 9 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2023-12-25 05:59:06,830 INFO L276 IsEmpty]: Start isEmpty. Operand 179017 states and 308751 transitions. [2023-12-25 05:59:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:59:06,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:59:06,939 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:59:06,948 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 05:59:07,146 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 05:59:07,147 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:59:07,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:59:07,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1356525126, now seen corresponding path program 1 times [2023-12-25 05:59:07,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:59:07,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088002959] [2023-12-25 05:59:07,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:59:07,149 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 05:59:07,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:59:07,150 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 05:59:07,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:59:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:59:07,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:59:07,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:59:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:59:07,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:59:07,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:59:07,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088002959] [2023-12-25 05:59:07,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088002959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:59:07,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:59:07,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:59:07,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432895140] [2023-12-25 05:59:07,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:59:07,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:59:07,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:59:07,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:59:07,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:59:07,416 INFO L87 Difference]: Start difference. First operand 179017 states and 308751 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:59:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:59:14,438 INFO L93 Difference]: Finished difference Result 266169 states and 459129 transitions. [2023-12-25 05:59:14,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:59:14,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2023-12-25 05:59:14,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:59:15,381 INFO L225 Difference]: With dead ends: 266169 [2023-12-25 05:59:15,382 INFO L226 Difference]: Without dead ends: 176658 [2023-12-25 05:59:15,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 05:59:15,575 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 10 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:59:15,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1713 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:59:15,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176658 states. [2023-12-25 05:59:23,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176658 to 176652. [2023-12-25 05:59:24,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176652 states, 146404 states have (on average 1.61035217617005) internal successors, (235762), 146302 states have internal predecessors, (235762), 30197 states have call successors, (30197), 45 states have call predecessors, (30197), 50 states have return successors, (37735), 30308 states have call predecessors, (37735), 30195 states have call successors, (37735) [2023-12-25 05:59:24,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176652 states to 176652 states and 303694 transitions. [2023-12-25 05:59:24,977 INFO L78 Accepts]: Start accepts. Automaton has 176652 states and 303694 transitions. Word has length 122 [2023-12-25 05:59:24,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:59:24,977 INFO L495 AbstractCegarLoop]: Abstraction has 176652 states and 303694 transitions. [2023-12-25 05:59:24,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:59:24,978 INFO L276 IsEmpty]: Start isEmpty. Operand 176652 states and 303694 transitions. [2023-12-25 05:59:25,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:59:25,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:59:25,054 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:59:25,060 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 (23)] Ended with exit code 0 [2023-12-25 05:59:25,260 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 05:59:25,260 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:59:25,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:59:25,260 INFO L85 PathProgramCache]: Analyzing trace with hash 112876094, now seen corresponding path program 1 times [2023-12-25 05:59:25,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:59:25,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141737021] [2023-12-25 05:59:25,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:59:25,261 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 05:59:25,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:59:25,262 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 05:59:25,295 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 05:59:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:59:25,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:59:25,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:59:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:59:25,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:59:25,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:59:25,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141737021] [2023-12-25 05:59:25,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141737021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:59:25,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:59:25,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:59:25,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646430317] [2023-12-25 05:59:25,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:59:25,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:59:25,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:59:25,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:59:25,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:59:25,573 INFO L87 Difference]: Start difference. First operand 176652 states and 303694 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:59:32,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:59:32,711 INFO L93 Difference]: Finished difference Result 177096 states and 304345 transitions. [2023-12-25 05:59:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:59:32,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 122 [2023-12-25 05:59:32,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:59:33,671 INFO L225 Difference]: With dead ends: 177096 [2023-12-25 05:59:33,671 INFO L226 Difference]: Without dead ends: 176714 [2023-12-25 05:59:33,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 114 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 05:59:33,750 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 578 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:59:33,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 2807 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:59:33,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176714 states. [2023-12-25 05:59:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176714 to 176710. [2023-12-25 05:59:43,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176710 states, 146447 states have (on average 1.6102890465492636) internal successors, (235822), 146347 states have internal predecessors, (235822), 30211 states have call successors, (30211), 47 states have call predecessors, (30211), 51 states have return successors, (37751), 30321 states have call predecessors, (37751), 30209 states have call successors, (37751) [2023-12-25 05:59:43,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176710 states to 176710 states and 303784 transitions. [2023-12-25 05:59:43,943 INFO L78 Accepts]: Start accepts. Automaton has 176710 states and 303784 transitions. Word has length 122 [2023-12-25 05:59:43,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:59:43,944 INFO L495 AbstractCegarLoop]: Abstraction has 176710 states and 303784 transitions. [2023-12-25 05:59:43,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:59:43,944 INFO L276 IsEmpty]: Start isEmpty. Operand 176710 states and 303784 transitions. [2023-12-25 05:59:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:59:44,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:59:44,023 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:59:44,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-25 05:59:44,229 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 05:59:44,229 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:59:44,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:59:44,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1406026447, now seen corresponding path program 1 times [2023-12-25 05:59:44,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:59:44,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505747066] [2023-12-25 05:59:44,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:59:44,230 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 05:59:44,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:59:44,231 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 05:59:44,233 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 05:59:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:59:44,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:59:44,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:59:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:59:44,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:59:44,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:59:44,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505747066] [2023-12-25 05:59:44,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505747066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:59:44,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:59:44,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-25 05:59:44,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68856001] [2023-12-25 05:59:44,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:59:44,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 05:59:44,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:59:44,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 05:59:44,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:59:44,773 INFO L87 Difference]: Start difference. First operand 176710 states and 303784 transitions. Second operand has 13 states, 12 states have (on average 7.75) internal successors, (93), 10 states have internal predecessors, (93), 6 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12)