/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_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:58:22,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:58:22,156 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 05:58:22,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:58:22,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:58:22,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:58:22,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:58:22,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:58:22,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:58:22,185 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:58:22,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:58:22,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:58:22,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:58:22,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:58:22,186 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:58:22,187 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:58:22,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:58:22,187 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:58:22,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:58:22,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:58:22,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:58:22,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:58:22,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:58:22,189 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:58:22,189 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:58:22,189 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:58:22,189 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:58:22,189 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:58:22,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:58:22,190 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:58:22,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:58:22,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:58:22,191 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:58:22,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:58:22,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:58:22,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:58:22,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:58:22,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:58:22,191 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:58:22,192 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:58:22,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:58:22,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:58:22,192 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:58:22,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:58:22,192 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:58:22,192 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:58:22,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:58:22,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:58:22,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:58:22,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:58:22,456 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:58:22,456 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:58:22,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product30.cil.c [2023-12-25 05:58:23,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:58:23,871 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:58:23,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product30.cil.c [2023-12-25 05:58:23,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1802ef513/60f7c4716599443b9a70bbb9ef62d682/FLAGb65a22298 [2023-12-25 05:58:23,919 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1802ef513/60f7c4716599443b9a70bbb9ef62d682 [2023-12-25 05:58:23,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:58:23,922 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:58:23,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:58:23,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:58:23,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:58:23,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:58:23" (1/1) ... [2023-12-25 05:58:23,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f59432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:23, skipping insertion in model container [2023-12-25 05:58:23,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:58:23" (1/1) ... [2023-12-25 05:58:23,994 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:58:24,430 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_product30.cil.c[41508,41521] [2023-12-25 05:58:24,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:58:24,542 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:58:24,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:58:24,615 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_product30.cil.c[41508,41521] [2023-12-25 05:58:24,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:58:24,646 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:58:24,660 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-25 05:58:24,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [363] [2023-12-25 05:58:24,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [740] [2023-12-25 05:58:24,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [878] [2023-12-25 05:58:24,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1945] [2023-12-25 05:58:24,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1980] [2023-12-25 05:58:24,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [1989] [2023-12-25 05:58:24,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2031] [2023-12-25 05:58:24,663 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2048] [2023-12-25 05:58:24,663 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2445] [2023-12-25 05:58:24,663 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2811] [2023-12-25 05:58:24,688 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_product30.cil.c[41508,41521] [2023-12-25 05:58:24,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:58:24,750 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:58:24,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24 WrapperNode [2023-12-25 05:58:24,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:58:24,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:58:24,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:58:24,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:58:24,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,877 INFO L138 Inliner]: procedures = 134, calls = 207, calls flagged for inlining = 61, calls inlined = 51, statements flattened = 868 [2023-12-25 05:58:24,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:58:24,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:58:24,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:58:24,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:58:24,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,901 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,932 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 05:58:24,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:58:24,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:58:24,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:58:24,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:58:24,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (1/1) ... [2023-12-25 05:58:24,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:58:25,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:58:25,042 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 05:58:25,072 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 05:58:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-25 05:58:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-25 05:58:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-25 05:58:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-25 05:58:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-25 05:58:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-25 05:58:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:58:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:58:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:58:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:58:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:58:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:58:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:58:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:58:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-25 05:58:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-25 05:58:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:58:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:58:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:58:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:58:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:58:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:58:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:58:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:58:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:58:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:58:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:58:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:58:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:58:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:58:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:58:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:58:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:58:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:58:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-25 05:58:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:58:25,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:58:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:58:25,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:58:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:58:25,086 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:58:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:58:25,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:58:25,247 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:58:25,250 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:58:25,776 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:58:25,834 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:58:25,835 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:58:25,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:58:25 BoogieIcfgContainer [2023-12-25 05:58:25,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:58:25,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:58:25,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:58:25,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:58:25,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:58:23" (1/3) ... [2023-12-25 05:58:25,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc20cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:58:25, skipping insertion in model container [2023-12-25 05:58:25,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:58:24" (2/3) ... [2023-12-25 05:58:25,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc20cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:58:25, skipping insertion in model container [2023-12-25 05:58:25,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:58:25" (3/3) ... [2023-12-25 05:58:25,842 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product30.cil.c [2023-12-25 05:58:25,855 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:58:25,855 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:58:25,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:58:25,914 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;@2b39c7fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:58:25,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:58:25,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 246 states have internal predecessors, (381), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-25 05:58:25,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 05:58:25,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:25,949 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, 1, 1] [2023-12-25 05:58:25,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:25,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1024459576, now seen corresponding path program 1 times [2023-12-25 05:58:25,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:25,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459701230] [2023-12-25 05:58:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:25,964 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 05:58:25,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:25,968 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 05:58:25,974 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 05:58:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:26,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:58:26,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:26,285 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 05:58:26,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:26,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:26,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459701230] [2023-12-25 05:58:26,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459701230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:26,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:26,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:58:26,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947846688] [2023-12-25 05:58:26,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:26,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:58:26,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:26,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:58:26,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:58:26,321 INFO L87 Difference]: Start difference. First operand has 320 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 246 states have internal predecessors, (381), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:26,427 INFO L93 Difference]: Finished difference Result 495 states and 737 transitions. [2023-12-25 05:58:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:58:26,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2023-12-25 05:58:26,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:26,447 INFO L225 Difference]: With dead ends: 495 [2023-12-25 05:58:26,448 INFO L226 Difference]: Without dead ends: 317 [2023-12-25 05:58:26,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 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 05:58:26,457 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:26,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 469 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:26,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-12-25 05:58:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2023-12-25 05:58:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 240 states have (on average 1.5583333333333333) internal successors, (374), 243 states have internal predecessors, (374), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-25 05:58:26,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 479 transitions. [2023-12-25 05:58:26,533 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 479 transitions. Word has length 95 [2023-12-25 05:58:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:26,534 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 479 transitions. [2023-12-25 05:58:26,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 479 transitions. [2023-12-25 05:58:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:58:26,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:26,540 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, 1, 1, 1] [2023-12-25 05:58:26,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:58:26,748 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 05:58:26,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:26,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:26,750 INFO L85 PathProgramCache]: Analyzing trace with hash 961480731, now seen corresponding path program 1 times [2023-12-25 05:58:26,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:26,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553677273] [2023-12-25 05:58:26,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:26,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:58:26,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:26,752 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 05:58:26,772 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 05:58:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:27,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:58:27,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:27,072 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 05:58:27,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:27,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:27,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553677273] [2023-12-25 05:58:27,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553677273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:27,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:27,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:27,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137537138] [2023-12-25 05:58:27,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:27,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:27,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:27,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:27,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:27,075 INFO L87 Difference]: Start difference. First operand 317 states and 479 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:27,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:27,192 INFO L93 Difference]: Finished difference Result 629 states and 952 transitions. [2023-12-25 05:58:27,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:27,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 96 [2023-12-25 05:58:27,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:27,197 INFO L225 Difference]: With dead ends: 629 [2023-12-25 05:58:27,197 INFO L226 Difference]: Without dead ends: 319 [2023-12-25 05:58:27,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:58:27,199 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 8 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1817 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 05:58:27,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1817 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:27,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-12-25 05:58:27,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-12-25 05:58:27,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 241 states have (on average 1.5560165975103735) internal successors, (375), 245 states have internal predecessors, (375), 53 states have call successors, (53), 23 states have call predecessors, (53), 24 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2023-12-25 05:58:27,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 482 transitions. [2023-12-25 05:58:27,219 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 482 transitions. Word has length 96 [2023-12-25 05:58:27,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:27,219 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 482 transitions. [2023-12-25 05:58:27,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:27,220 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 482 transitions. [2023-12-25 05:58:27,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:58:27,221 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:27,221 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, 1, 1, 1] [2023-12-25 05:58:27,234 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 (3)] Ended with exit code 0 [2023-12-25 05:58:27,430 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 05:58:27,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:27,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:27,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1099257858, now seen corresponding path program 1 times [2023-12-25 05:58:27,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:27,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195915156] [2023-12-25 05:58:27,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:27,433 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 05:58:27,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:27,434 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 05:58:27,465 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 05:58:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:27,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:58:27,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:27,697 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 05:58:27,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:27,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:27,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195915156] [2023-12-25 05:58:27,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195915156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:27,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:27,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:27,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304227123] [2023-12-25 05:58:27,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:27,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:27,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:27,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:27,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:27,699 INFO L87 Difference]: Start difference. First operand 319 states and 482 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:27,824 INFO L93 Difference]: Finished difference Result 631 states and 956 transitions. [2023-12-25 05:58:27,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:27,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 97 [2023-12-25 05:58:27,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:27,828 INFO L225 Difference]: With dead ends: 631 [2023-12-25 05:58:27,828 INFO L226 Difference]: Without dead ends: 321 [2023-12-25 05:58:27,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 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 05:58:27,830 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 8 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:27,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1803 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:27,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-25 05:58:27,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2023-12-25 05:58:27,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 242 states have (on average 1.5537190082644627) internal successors, (376), 247 states have internal predecessors, (376), 53 states have call successors, (53), 23 states have call predecessors, (53), 25 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2023-12-25 05:58:27,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 487 transitions. [2023-12-25 05:58:27,883 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 487 transitions. Word has length 97 [2023-12-25 05:58:27,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:27,883 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 487 transitions. [2023-12-25 05:58:27,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 487 transitions. [2023-12-25 05:58:27,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 05:58:27,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:27,889 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] [2023-12-25 05:58:27,894 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 (4)] Ended with exit code 0 [2023-12-25 05:58:28,089 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 05:58:28,090 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:28,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:28,090 INFO L85 PathProgramCache]: Analyzing trace with hash -392641286, now seen corresponding path program 1 times [2023-12-25 05:58:28,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:28,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865329396] [2023-12-25 05:58:28,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:28,091 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 05:58:28,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:28,096 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 05:58:28,104 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 05:58:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:28,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:58:28,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:28,327 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 05:58:28,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:28,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:28,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865329396] [2023-12-25 05:58:28,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865329396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:28,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:28,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:28,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401836342] [2023-12-25 05:58:28,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:28,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:28,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:28,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:28,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:28,330 INFO L87 Difference]: Start difference. First operand 321 states and 487 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:28,417 INFO L93 Difference]: Finished difference Result 623 states and 946 transitions. [2023-12-25 05:58:28,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:28,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 98 [2023-12-25 05:58:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:28,419 INFO L225 Difference]: With dead ends: 623 [2023-12-25 05:58:28,419 INFO L226 Difference]: Without dead ends: 321 [2023-12-25 05:58:28,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 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 05:58:28,421 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 8 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1817 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 05:58:28,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1817 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-25 05:58:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2023-12-25 05:58:28,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 242 states have (on average 1.5537190082644627) internal successors, (376), 247 states have internal predecessors, (376), 53 states have call successors, (53), 23 states have call predecessors, (53), 25 states have return successors, (57), 52 states have call predecessors, (57), 52 states have call successors, (57) [2023-12-25 05:58:28,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 486 transitions. [2023-12-25 05:58:28,430 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 486 transitions. Word has length 98 [2023-12-25 05:58:28,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:28,431 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 486 transitions. [2023-12-25 05:58:28,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:28,431 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 486 transitions. [2023-12-25 05:58:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 05:58:28,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:28,432 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:28,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:58:28,652 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 05:58:28,652 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:28,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:28,653 INFO L85 PathProgramCache]: Analyzing trace with hash 688901571, now seen corresponding path program 2 times [2023-12-25 05:58:28,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:28,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313223808] [2023-12-25 05:58:28,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:58:28,654 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 05:58:28,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:28,655 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 05:58:28,704 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 05:58:28,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:58:28,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:58:28,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:28,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:28,869 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 05:58:28,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:28,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:28,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313223808] [2023-12-25 05:58:28,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313223808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:28,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:28,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:28,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569724989] [2023-12-25 05:58:28,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:28,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:28,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:28,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:28,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:28,871 INFO L87 Difference]: Start difference. First operand 321 states and 486 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:28,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:28,906 INFO L93 Difference]: Finished difference Result 495 states and 731 transitions. [2023-12-25 05:58:28,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:28,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2023-12-25 05:58:28,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:28,909 INFO L225 Difference]: With dead ends: 495 [2023-12-25 05:58:28,909 INFO L226 Difference]: Without dead ends: 323 [2023-12-25 05:58:28,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 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 05:58:28,911 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 0 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:28,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 931 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:28,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-25 05:58:28,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2023-12-25 05:58:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 244 states have (on average 1.5491803278688525) internal successors, (378), 249 states have internal predecessors, (378), 53 states have call successors, (53), 23 states have call predecessors, (53), 25 states have return successors, (57), 52 states have call predecessors, (57), 52 states have call successors, (57) [2023-12-25 05:58:28,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 488 transitions. [2023-12-25 05:58:28,928 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 488 transitions. Word has length 99 [2023-12-25 05:58:28,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:28,929 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 488 transitions. [2023-12-25 05:58:28,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:28,929 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 488 transitions. [2023-12-25 05:58:28,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:58:28,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:28,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:28,957 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 05:58:29,135 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 05:58:29,135 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:29,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:29,136 INFO L85 PathProgramCache]: Analyzing trace with hash -61092364, now seen corresponding path program 1 times [2023-12-25 05:58:29,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:29,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245634270] [2023-12-25 05:58:29,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:29,137 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 05:58:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:29,138 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 05:58:29,140 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 05:58:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:29,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:58:29,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:29,363 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 05:58:29,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:29,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:29,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245634270] [2023-12-25 05:58:29,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245634270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:29,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:29,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:29,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285008262] [2023-12-25 05:58:29,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:29,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:29,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:29,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:29,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:29,365 INFO L87 Difference]: Start difference. First operand 323 states and 488 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:29,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:29,445 INFO L93 Difference]: Finished difference Result 629 states and 953 transitions. [2023-12-25 05:58:29,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:29,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2023-12-25 05:58:29,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:29,447 INFO L225 Difference]: With dead ends: 629 [2023-12-25 05:58:29,447 INFO L226 Difference]: Without dead ends: 325 [2023-12-25 05:58:29,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 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 05:58:29,448 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 6 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1819 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 05:58:29,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1819 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:29,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-25 05:58:29,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2023-12-25 05:58:29,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 245 states have (on average 1.546938775510204) internal successors, (379), 251 states have internal predecessors, (379), 53 states have call successors, (53), 23 states have call predecessors, (53), 26 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2023-12-25 05:58:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 491 transitions. [2023-12-25 05:58:29,456 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 491 transitions. Word has length 106 [2023-12-25 05:58:29,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:29,456 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 491 transitions. [2023-12-25 05:58:29,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 491 transitions. [2023-12-25 05:58:29,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:58:29,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:29,458 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, 1, 1] [2023-12-25 05:58:29,466 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 05:58:29,664 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 05:58:29,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:29,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:29,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1701630850, now seen corresponding path program 1 times [2023-12-25 05:58:29,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:29,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517767295] [2023-12-25 05:58:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:29,665 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 05:58:29,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:29,667 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 05:58:29,702 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 05:58:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:29,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:58:29,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:29,887 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 05:58:29,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:29,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517767295] [2023-12-25 05:58:29,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517767295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:29,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:29,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:29,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417700471] [2023-12-25 05:58:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:29,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:29,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:29,889 INFO L87 Difference]: Start difference. First operand 325 states and 491 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:29,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:29,980 INFO L93 Difference]: Finished difference Result 627 states and 948 transitions. [2023-12-25 05:58:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:29,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2023-12-25 05:58:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:29,982 INFO L225 Difference]: With dead ends: 627 [2023-12-25 05:58:29,982 INFO L226 Difference]: Without dead ends: 325 [2023-12-25 05:58:29,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 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 05:58:29,983 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 8 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1804 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 05:58:29,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1804 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:29,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-25 05:58:29,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2023-12-25 05:58:29,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 245 states have (on average 1.546938775510204) internal successors, (379), 251 states have internal predecessors, (379), 53 states have call successors, (53), 23 states have call predecessors, (53), 26 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2023-12-25 05:58:29,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 490 transitions. [2023-12-25 05:58:29,992 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 490 transitions. Word has length 107 [2023-12-25 05:58:29,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:29,993 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 490 transitions. [2023-12-25 05:58:29,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:29,993 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 490 transitions. [2023-12-25 05:58:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:58:29,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:29,994 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:30,015 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 05:58:30,202 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 05:58:30,202 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:30,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:30,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2043093580, now seen corresponding path program 2 times [2023-12-25 05:58:30,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:30,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912611141] [2023-12-25 05:58:30,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:58:30,204 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 05:58:30,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:30,205 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 05:58:30,256 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 05:58:30,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 05:58:30,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:58:30,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:58:30,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:30,484 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 05:58:30,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:30,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:30,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912611141] [2023-12-25 05:58:30,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912611141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:30,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:30,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:58:30,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034382810] [2023-12-25 05:58:30,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:30,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:58:30,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:30,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:58:30,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:30,486 INFO L87 Difference]: Start difference. First operand 325 states and 490 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:30,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:30,584 INFO L93 Difference]: Finished difference Result 629 states and 953 transitions. [2023-12-25 05:58:30,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:58:30,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 108 [2023-12-25 05:58:30,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:30,586 INFO L225 Difference]: With dead ends: 629 [2023-12-25 05:58:30,586 INFO L226 Difference]: Without dead ends: 327 [2023-12-25 05:58:30,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 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 05:58:30,587 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 6 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:30,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1806 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-12-25 05:58:30,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2023-12-25 05:58:30,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 246 states have (on average 1.5447154471544715) internal successors, (380), 253 states have internal predecessors, (380), 53 states have call successors, (53), 23 states have call predecessors, (53), 27 states have return successors, (62), 52 states have call predecessors, (62), 52 states have call successors, (62) [2023-12-25 05:58:30,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 495 transitions. [2023-12-25 05:58:30,596 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 495 transitions. Word has length 108 [2023-12-25 05:58:30,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:30,596 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 495 transitions. [2023-12-25 05:58:30,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:30,596 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 495 transitions. [2023-12-25 05:58:30,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:58:30,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:30,597 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, 1, 1, 1, 1] [2023-12-25 05:58:30,615 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 (9)] Ended with exit code 0 [2023-12-25 05:58:30,803 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 05:58:30,804 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:30,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1488029113, now seen corresponding path program 1 times [2023-12-25 05:58:30,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:30,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58914654] [2023-12-25 05:58:30,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:30,805 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 05:58:30,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:30,806 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 05:58:30,807 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 05:58:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:31,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:31,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:31,031 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 05:58:31,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:31,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:31,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58914654] [2023-12-25 05:58:31,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58914654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:31,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:31,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:31,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370264885] [2023-12-25 05:58:31,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:31,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:31,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:31,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:31,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:31,033 INFO L87 Difference]: Start difference. First operand 327 states and 495 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:31,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:31,073 INFO L93 Difference]: Finished difference Result 680 states and 1043 transitions. [2023-12-25 05:58:31,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:31,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2023-12-25 05:58:31,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:31,075 INFO L225 Difference]: With dead ends: 680 [2023-12-25 05:58:31,075 INFO L226 Difference]: Without dead ends: 379 [2023-12-25 05:58:31,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:31,077 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 102 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:31,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 899 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:31,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-12-25 05:58:31,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 374. [2023-12-25 05:58:31,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 282 states have (on average 1.5602836879432624) internal successors, (440), 289 states have internal predecessors, (440), 64 states have call successors, (64), 23 states have call predecessors, (64), 27 states have return successors, (75), 63 states have call predecessors, (75), 63 states have call successors, (75) [2023-12-25 05:58:31,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 579 transitions. [2023-12-25 05:58:31,103 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 579 transitions. Word has length 109 [2023-12-25 05:58:31,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:31,103 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 579 transitions. [2023-12-25 05:58:31,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:31,103 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 579 transitions. [2023-12-25 05:58:31,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 05:58:31,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:31,105 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, 1, 1, 1, 1, 1] [2023-12-25 05:58:31,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:58:31,324 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 05:58:31,325 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:31,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:31,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1470402940, now seen corresponding path program 1 times [2023-12-25 05:58:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:31,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036572978] [2023-12-25 05:58:31,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:31,326 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 05:58:31,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:31,327 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 05:58:31,329 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 05:58:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:31,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:58:31,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:31,581 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 05:58:31,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:31,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:31,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036572978] [2023-12-25 05:58:31,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036572978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:31,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:31,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:58:31,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790178009] [2023-12-25 05:58:31,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:31,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:58:31,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:31,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:58:31,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:58:31,583 INFO L87 Difference]: Start difference. First operand 374 states and 579 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:31,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:31,667 INFO L93 Difference]: Finished difference Result 740 states and 1136 transitions. [2023-12-25 05:58:31,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:58:31,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2023-12-25 05:58:31,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:31,670 INFO L225 Difference]: With dead ends: 740 [2023-12-25 05:58:31,670 INFO L226 Difference]: Without dead ends: 390 [2023-12-25 05:58:31,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:58:31,673 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 440 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:31,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 954 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:58:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-12-25 05:58:31,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 382. [2023-12-25 05:58:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 289 states have (on average 1.5432525951557095) internal successors, (446), 295 states have internal predecessors, (446), 64 states have call successors, (64), 25 states have call predecessors, (64), 28 states have return successors, (71), 63 states have call predecessors, (71), 63 states have call successors, (71) [2023-12-25 05:58:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 581 transitions. [2023-12-25 05:58:31,689 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 581 transitions. Word has length 110 [2023-12-25 05:58:31,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:31,689 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 581 transitions. [2023-12-25 05:58:31,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:58:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 581 transitions. [2023-12-25 05:58:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:58:31,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:31,691 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, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:31,716 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 05:58:31,898 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 05:58:31,898 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:31,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:31,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1069371426, now seen corresponding path program 1 times [2023-12-25 05:58:31,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:31,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665549607] [2023-12-25 05:58:31,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:31,900 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 05:58:31,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:31,901 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 05:58:31,911 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 05:58:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:32,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:58:32,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:32,138 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 05:58:32,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:58:32,231 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 05:58:32,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:32,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665549607] [2023-12-25 05:58:32,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665549607] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:58:32,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:58:32,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:58:32,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112717312] [2023-12-25 05:58:32,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:58:32,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:58:32,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:32,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:58:32,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:58:32,233 INFO L87 Difference]: Start difference. First operand 382 states and 581 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:58:32,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:32,431 INFO L93 Difference]: Finished difference Result 879 states and 1390 transitions. [2023-12-25 05:58:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:58:32,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 111 [2023-12-25 05:58:32,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:32,435 INFO L225 Difference]: With dead ends: 879 [2023-12-25 05:58:32,435 INFO L226 Difference]: Without dead ends: 707 [2023-12-25 05:58:32,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:58:32,436 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 332 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:32,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 2356 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:58:32,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-12-25 05:58:32,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 692. [2023-12-25 05:58:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 535 states have (on average 1.5906542056074766) internal successors, (851), 541 states have internal predecessors, (851), 128 states have call successors, (128), 25 states have call predecessors, (128), 28 states have return successors, (145), 127 states have call predecessors, (145), 127 states have call successors, (145) [2023-12-25 05:58:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1124 transitions. [2023-12-25 05:58:32,465 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1124 transitions. Word has length 111 [2023-12-25 05:58:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:32,465 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 1124 transitions. [2023-12-25 05:58:32,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:58:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1124 transitions. [2023-12-25 05:58:32,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:58:32,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:32,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:58:32,474 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 05:58:32,674 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 05:58:32,674 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:32,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:32,675 INFO L85 PathProgramCache]: Analyzing trace with hash 708690131, now seen corresponding path program 1 times [2023-12-25 05:58:32,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:32,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018248544] [2023-12-25 05:58:32,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:32,675 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:58:32,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:32,677 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 05:58:32,677 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 05:58:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:32,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:32,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:32,885 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 05:58:32,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:32,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:32,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018248544] [2023-12-25 05:58:32,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018248544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:32,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:32,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:32,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46795048] [2023-12-25 05:58:32,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:32,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:32,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:32,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:32,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:32,887 INFO L87 Difference]: Start difference. First operand 692 states and 1124 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:32,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:32,948 INFO L93 Difference]: Finished difference Result 1605 states and 2661 transitions. [2023-12-25 05:58:32,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:32,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2023-12-25 05:58:32,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:32,953 INFO L225 Difference]: With dead ends: 1605 [2023-12-25 05:58:32,953 INFO L226 Difference]: Without dead ends: 989 [2023-12-25 05:58:32,955 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 05:58:32,956 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 96 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:32,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 938 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:32,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2023-12-25 05:58:33,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 984. [2023-12-25 05:58:33,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 763 states have (on average 1.6094364351245085) internal successors, (1228), 769 states have internal predecessors, (1228), 192 states have call successors, (192), 25 states have call predecessors, (192), 28 states have return successors, (219), 191 states have call predecessors, (219), 191 states have call successors, (219) [2023-12-25 05:58:33,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1639 transitions. [2023-12-25 05:58:33,021 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1639 transitions. Word has length 114 [2023-12-25 05:58:33,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:33,021 INFO L495 AbstractCegarLoop]: Abstraction has 984 states and 1639 transitions. [2023-12-25 05:58:33,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1639 transitions. [2023-12-25 05:58:33,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:58:33,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:33,025 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 05:58:33,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:58:33,231 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 05:58:33,231 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:33,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:33,231 INFO L85 PathProgramCache]: Analyzing trace with hash 366029075, now seen corresponding path program 1 times [2023-12-25 05:58:33,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:33,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533845396] [2023-12-25 05:58:33,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:33,232 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 05:58:33,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:33,233 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 05:58:33,235 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 05:58:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:33,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:33,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:33,492 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 05:58:33,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:33,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:33,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533845396] [2023-12-25 05:58:33,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533845396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:33,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:33,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:33,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396155342] [2023-12-25 05:58:33,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:33,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:33,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:33,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:33,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:33,494 INFO L87 Difference]: Start difference. First operand 984 states and 1639 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:33,579 INFO L93 Difference]: Finished difference Result 2317 states and 3887 transitions. [2023-12-25 05:58:33,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:33,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2023-12-25 05:58:33,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:33,586 INFO L225 Difference]: With dead ends: 2317 [2023-12-25 05:58:33,586 INFO L226 Difference]: Without dead ends: 1459 [2023-12-25 05:58:33,590 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 05:58:33,590 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 94 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:33,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 922 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:33,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2023-12-25 05:58:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1454. [2023-12-25 05:58:33,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1138 states have (on average 1.6142355008787346) internal successors, (1837), 1144 states have internal predecessors, (1837), 287 states have call successors, (287), 25 states have call predecessors, (287), 28 states have return successors, (314), 286 states have call predecessors, (314), 286 states have call successors, (314) [2023-12-25 05:58:33,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 2438 transitions. [2023-12-25 05:58:33,663 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 2438 transitions. Word has length 115 [2023-12-25 05:58:33,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:33,663 INFO L495 AbstractCegarLoop]: Abstraction has 1454 states and 2438 transitions. [2023-12-25 05:58:33,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 2438 transitions. [2023-12-25 05:58:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:58:33,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:33,670 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 05:58:33,686 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 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:58:33,876 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 05:58:33,876 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:33,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:33,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1545428283, now seen corresponding path program 1 times [2023-12-25 05:58:33,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:33,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425665172] [2023-12-25 05:58:33,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:33,877 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 05:58:33,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:33,879 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 05:58:33,881 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 05:58:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:34,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:34,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:34,111 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 05:58:34,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:34,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:34,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425665172] [2023-12-25 05:58:34,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425665172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:34,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:34,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:34,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862251275] [2023-12-25 05:58:34,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:34,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:34,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:34,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:34,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:34,113 INFO L87 Difference]: Start difference. First operand 1454 states and 2438 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:34,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:34,210 INFO L93 Difference]: Finished difference Result 3368 states and 5698 transitions. [2023-12-25 05:58:34,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:34,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2023-12-25 05:58:34,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:34,223 INFO L225 Difference]: With dead ends: 3368 [2023-12-25 05:58:34,223 INFO L226 Difference]: Without dead ends: 2166 [2023-12-25 05:58:34,227 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 05:58:34,228 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 92 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:34,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 914 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:34,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2023-12-25 05:58:34,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2161. [2023-12-25 05:58:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 1722 states have (on average 1.6184668989547037) internal successors, (2787), 1728 states have internal predecessors, (2787), 410 states have call successors, (410), 25 states have call predecessors, (410), 28 states have return successors, (453), 409 states have call predecessors, (453), 409 states have call successors, (453) [2023-12-25 05:58:34,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 3650 transitions. [2023-12-25 05:58:34,316 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 3650 transitions. Word has length 116 [2023-12-25 05:58:34,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:34,316 INFO L495 AbstractCegarLoop]: Abstraction has 2161 states and 3650 transitions. [2023-12-25 05:58:34,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:34,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 3650 transitions. [2023-12-25 05:58:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 05:58:34,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:34,326 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 05:58:34,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:58:34,531 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 05:58:34,532 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:34,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:34,532 INFO L85 PathProgramCache]: Analyzing trace with hash 220493074, now seen corresponding path program 1 times [2023-12-25 05:58:34,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:34,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260810255] [2023-12-25 05:58:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:34,533 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 05:58:34,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:34,534 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 05:58:34,537 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 05:58:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:34,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:34,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:34,779 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 05:58:34,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:34,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:34,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260810255] [2023-12-25 05:58:34,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260810255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:34,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:34,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:34,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974057207] [2023-12-25 05:58:34,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:34,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:34,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:34,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:34,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:34,780 INFO L87 Difference]: Start difference. First operand 2161 states and 3650 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:34,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:34,888 INFO L93 Difference]: Finished difference Result 4992 states and 8500 transitions. [2023-12-25 05:58:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:34,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2023-12-25 05:58:34,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:34,902 INFO L225 Difference]: With dead ends: 4992 [2023-12-25 05:58:34,902 INFO L226 Difference]: Without dead ends: 3289 [2023-12-25 05:58:34,908 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 05:58:34,908 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 90 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:34,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 914 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:34,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2023-12-25 05:58:35,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3284. [2023-12-25 05:58:35,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3284 states, 2666 states have (on average 1.6211552888222056) internal successors, (4322), 2672 states have internal predecessors, (4322), 589 states have call successors, (589), 25 states have call predecessors, (589), 28 states have return successors, (658), 588 states have call predecessors, (658), 588 states have call successors, (658) [2023-12-25 05:58:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3284 states to 3284 states and 5569 transitions. [2023-12-25 05:58:35,038 INFO L78 Accepts]: Start accepts. Automaton has 3284 states and 5569 transitions. Word has length 117 [2023-12-25 05:58:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:35,039 INFO L495 AbstractCegarLoop]: Abstraction has 3284 states and 5569 transitions. [2023-12-25 05:58:35,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3284 states and 5569 transitions. [2023-12-25 05:58:35,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:58:35,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:35,050 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 05:58:35,059 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 (16)] Ended with exit code 0 [2023-12-25 05:58:35,259 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 05:58:35,259 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:35,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:35,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1500640567, now seen corresponding path program 1 times [2023-12-25 05:58:35,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:35,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327006904] [2023-12-25 05:58:35,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:35,261 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 05:58:35,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:35,263 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 05:58:35,264 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 05:58:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:35,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:35,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:35,497 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 05:58:35,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:35,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:35,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327006904] [2023-12-25 05:58:35,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327006904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:35,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:35,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:35,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593514033] [2023-12-25 05:58:35,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:35,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:35,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:35,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:35,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:35,499 INFO L87 Difference]: Start difference. First operand 3284 states and 5569 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:35,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:35,715 INFO L93 Difference]: Finished difference Result 7916 states and 13505 transitions. [2023-12-25 05:58:35,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:35,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2023-12-25 05:58:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:35,738 INFO L225 Difference]: With dead ends: 7916 [2023-12-25 05:58:35,739 INFO L226 Difference]: Without dead ends: 5325 [2023-12-25 05:58:35,747 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 05:58:35,748 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 88 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:35,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 935 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5325 states. [2023-12-25 05:58:35,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5325 to 5320. [2023-12-25 05:58:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 4326 states have (on average 1.6132686084142396) internal successors, (6979), 4332 states have internal predecessors, (6979), 965 states have call successors, (965), 25 states have call predecessors, (965), 28 states have return successors, (1078), 964 states have call predecessors, (1078), 964 states have call successors, (1078) [2023-12-25 05:58:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 9022 transitions. [2023-12-25 05:58:35,964 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 9022 transitions. Word has length 118 [2023-12-25 05:58:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:35,964 INFO L495 AbstractCegarLoop]: Abstraction has 5320 states and 9022 transitions. [2023-12-25 05:58:35,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:35,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 9022 transitions. [2023-12-25 05:58:36,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 05:58:36,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:36,043 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 05:58:36,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:58:36,243 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 05:58:36,243 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:36,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:36,244 INFO L85 PathProgramCache]: Analyzing trace with hash 265728270, now seen corresponding path program 1 times [2023-12-25 05:58:36,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:36,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059200765] [2023-12-25 05:58:36,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:36,245 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 05:58:36,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:36,246 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 05:58:36,249 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 05:58:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:36,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:36,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:36,466 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 05:58:36,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:36,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:36,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059200765] [2023-12-25 05:58:36,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059200765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:36,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:36,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:36,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165230620] [2023-12-25 05:58:36,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:36,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:36,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:36,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:36,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:36,468 INFO L87 Difference]: Start difference. First operand 5320 states and 9022 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:36,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:36,768 INFO L93 Difference]: Finished difference Result 13065 states and 22310 transitions. [2023-12-25 05:58:36,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:36,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2023-12-25 05:58:36,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:36,818 INFO L225 Difference]: With dead ends: 13065 [2023-12-25 05:58:36,818 INFO L226 Difference]: Without dead ends: 8819 [2023-12-25 05:58:36,829 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 05:58:36,830 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 86 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:36,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 917 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:36,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8819 states. [2023-12-25 05:58:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8819 to 8814. [2023-12-25 05:58:37,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8814 states, 7214 states have (on average 1.610618242306626) internal successors, (11619), 7220 states have internal predecessors, (11619), 1571 states have call successors, (1571), 25 states have call predecessors, (1571), 28 states have return successors, (1762), 1570 states have call predecessors, (1762), 1570 states have call successors, (1762) [2023-12-25 05:58:37,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8814 states to 8814 states and 14952 transitions. [2023-12-25 05:58:37,223 INFO L78 Accepts]: Start accepts. Automaton has 8814 states and 14952 transitions. Word has length 119 [2023-12-25 05:58:37,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:37,223 INFO L495 AbstractCegarLoop]: Abstraction has 8814 states and 14952 transitions. [2023-12-25 05:58:37,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:37,224 INFO L276 IsEmpty]: Start isEmpty. Operand 8814 states and 14952 transitions. [2023-12-25 05:58:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:58:37,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:37,245 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 05:58:37,251 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 05:58:37,450 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 05:58:37,451 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:37,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1249059143, now seen corresponding path program 1 times [2023-12-25 05:58:37,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:37,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335809527] [2023-12-25 05:58:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:37,452 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 05:58:37,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:37,454 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 05:58:37,562 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 05:58:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:37,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:37,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:37,756 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 05:58:37,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:37,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:37,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335809527] [2023-12-25 05:58:37,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335809527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:37,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:37,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:37,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395729623] [2023-12-25 05:58:37,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:37,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:37,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:37,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:37,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:37,760 INFO L87 Difference]: Start difference. First operand 8814 states and 14952 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:38,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:38,168 INFO L93 Difference]: Finished difference Result 22732 states and 38743 transitions. [2023-12-25 05:58:38,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:38,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-12-25 05:58:38,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:38,222 INFO L225 Difference]: With dead ends: 22732 [2023-12-25 05:58:38,222 INFO L226 Difference]: Without dead ends: 15419 [2023-12-25 05:58:38,247 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 05:58:38,248 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 84 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:38,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 928 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:38,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15419 states. [2023-12-25 05:58:38,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15419 to 15414. [2023-12-25 05:58:38,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15414 states, 12611 states have (on average 1.6011418602807073) internal successors, (20192), 12617 states have internal predecessors, (20192), 2774 states have call successors, (2774), 25 states have call predecessors, (2774), 28 states have return successors, (3109), 2773 states have call predecessors, (3109), 2773 states have call successors, (3109) [2023-12-25 05:58:38,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15414 states to 15414 states and 26075 transitions. [2023-12-25 05:58:38,994 INFO L78 Accepts]: Start accepts. Automaton has 15414 states and 26075 transitions. Word has length 120 [2023-12-25 05:58:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:38,995 INFO L495 AbstractCegarLoop]: Abstraction has 15414 states and 26075 transitions. [2023-12-25 05:58:38,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 15414 states and 26075 transitions. [2023-12-25 05:58:39,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:58:39,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:39,024 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 05:58:39,030 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 05:58:39,231 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 05:58:39,231 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:39,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:39,232 INFO L85 PathProgramCache]: Analyzing trace with hash -918583955, now seen corresponding path program 1 times [2023-12-25 05:58:39,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:39,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128711064] [2023-12-25 05:58:39,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:39,233 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 05:58:39,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:39,234 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 05:58:39,266 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 05:58:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:39,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:39,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:39,501 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 05:58:39,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:39,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:39,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128711064] [2023-12-25 05:58:39,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128711064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:39,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:39,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:39,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269505997] [2023-12-25 05:58:39,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:39,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:39,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:39,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:39,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:39,504 INFO L87 Difference]: Start difference. First operand 15414 states and 26075 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:40,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:40,337 INFO L93 Difference]: Finished difference Result 40697 states and 69195 transitions. [2023-12-25 05:58:40,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:40,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2023-12-25 05:58:40,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:40,423 INFO L225 Difference]: With dead ends: 40697 [2023-12-25 05:58:40,423 INFO L226 Difference]: Without dead ends: 27397 [2023-12-25 05:58:40,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:40,455 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 82 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:40,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 917 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:40,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27397 states. [2023-12-25 05:58:41,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27397 to 27392. [2023-12-25 05:58:41,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27392 states, 22550 states have (on average 1.5968070953436808) internal successors, (36008), 22556 states have internal predecessors, (36008), 4813 states have call successors, (4813), 25 states have call predecessors, (4813), 28 states have return successors, (5422), 4812 states have call predecessors, (5422), 4812 states have call successors, (5422) [2023-12-25 05:58:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27392 states to 27392 states and 46243 transitions. [2023-12-25 05:58:41,952 INFO L78 Accepts]: Start accepts. Automaton has 27392 states and 46243 transitions. Word has length 121 [2023-12-25 05:58:41,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:41,952 INFO L495 AbstractCegarLoop]: Abstraction has 27392 states and 46243 transitions. [2023-12-25 05:58:41,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 27392 states and 46243 transitions. [2023-12-25 05:58:41,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:58:41,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:41,997 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 05:58:42,003 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 05:58:42,203 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 05:58:42,204 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:42,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:42,204 INFO L85 PathProgramCache]: Analyzing trace with hash -274345115, now seen corresponding path program 1 times [2023-12-25 05:58:42,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:42,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523069250] [2023-12-25 05:58:42,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:42,205 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 05:58:42,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:42,206 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 05:58:42,244 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 (21)] Waiting until timeout for monitored process [2023-12-25 05:58:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:42,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:42,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:42,435 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 05:58:42,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:42,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:42,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523069250] [2023-12-25 05:58:42,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523069250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:42,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:42,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:42,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619321129] [2023-12-25 05:58:42,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:42,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:42,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:42,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:42,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:42,438 INFO L87 Difference]: Start difference. First operand 27392 states and 46243 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:44,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:44,266 INFO L93 Difference]: Finished difference Result 74494 states and 126272 transitions. [2023-12-25 05:58:44,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:44,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-12-25 05:58:44,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:44,450 INFO L225 Difference]: With dead ends: 74494 [2023-12-25 05:58:44,451 INFO L226 Difference]: Without dead ends: 49955 [2023-12-25 05:58:44,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:44,508 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 80 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:44,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 920 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:44,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49955 states. [2023-12-25 05:58:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49955 to 49950. [2023-12-25 05:58:47,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49950 states, 41393 states have (on average 1.5910419636170368) internal successors, (65858), 41399 states have internal predecessors, (65858), 8528 states have call successors, (8528), 25 states have call predecessors, (8528), 28 states have return successors, (9669), 8527 states have call predecessors, (9669), 8527 states have call successors, (9669) [2023-12-25 05:58:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49950 states to 49950 states and 84055 transitions. [2023-12-25 05:58:47,225 INFO L78 Accepts]: Start accepts. Automaton has 49950 states and 84055 transitions. Word has length 122 [2023-12-25 05:58:47,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:47,225 INFO L495 AbstractCegarLoop]: Abstraction has 49950 states and 84055 transitions. [2023-12-25 05:58:47,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:47,225 INFO L276 IsEmpty]: Start isEmpty. Operand 49950 states and 84055 transitions. [2023-12-25 05:58:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:58:47,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:47,267 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] [2023-12-25 05:58:47,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:58:47,474 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 05:58:47,475 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:47,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:47,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1604285939, now seen corresponding path program 1 times [2023-12-25 05:58:47,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:47,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751743179] [2023-12-25 05:58:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:47,476 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 05:58:47,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:47,494 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 05:58:47,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:58:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:47,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:58:47,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:47,911 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 05:58:47,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:58:47,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:47,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751743179] [2023-12-25 05:58:47,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751743179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:58:47,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:58:47,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:58:47,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969815202] [2023-12-25 05:58:47,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:58:47,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:58:47,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:47,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:58:47,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:47,913 INFO L87 Difference]: Start difference. First operand 49950 states and 84055 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:50,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:58:50,736 INFO L93 Difference]: Finished difference Result 92984 states and 156838 transitions. [2023-12-25 05:58:50,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:58:50,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2023-12-25 05:58:50,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:58:51,090 INFO L225 Difference]: With dead ends: 92984 [2023-12-25 05:58:51,091 INFO L226 Difference]: Without dead ends: 92812 [2023-12-25 05:58:51,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:58:51,135 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 78 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:58:51,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 917 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:58:51,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92812 states. [2023-12-25 05:58:55,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92812 to 92807. [2023-12-25 05:58:55,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92807 states, 77451 states have (on average 1.5836722572981627) internal successors, (122657), 77457 states have internal predecessors, (122657), 15327 states have call successors, (15327), 25 states have call predecessors, (15327), 28 states have return successors, (17514), 15326 states have call predecessors, (17514), 15326 states have call successors, (17514) [2023-12-25 05:58:55,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92807 states to 92807 states and 155498 transitions. [2023-12-25 05:58:55,701 INFO L78 Accepts]: Start accepts. Automaton has 92807 states and 155498 transitions. Word has length 123 [2023-12-25 05:58:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:58:55,701 INFO L495 AbstractCegarLoop]: Abstraction has 92807 states and 155498 transitions. [2023-12-25 05:58:55,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:58:55,701 INFO L276 IsEmpty]: Start isEmpty. Operand 92807 states and 155498 transitions. [2023-12-25 05:58:55,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:58:55,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:58:55,739 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] [2023-12-25 05:58:55,748 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 05:58:55,945 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 05:58:55,945 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:58:55,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:58:55,946 INFO L85 PathProgramCache]: Analyzing trace with hash 680262534, now seen corresponding path program 1 times [2023-12-25 05:58:55,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:58:55,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110428494] [2023-12-25 05:58:55,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:58:55,947 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 05:58:55,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:58:55,948 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 05:58:55,951 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 05:58:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:58:56,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:58:56,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:58:56,308 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 05:58:56,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:58:56,885 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 05:58:56,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:58:56,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110428494] [2023-12-25 05:58:56,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110428494] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:58:56,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:58:56,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 05:58:56,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254644810] [2023-12-25 05:58:56,885 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:58:56,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:58:56,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:58:56,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:58:56,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:58:56,888 INFO L87 Difference]: Start difference. First operand 92807 states and 155498 transitions. Second operand has 16 states, 16 states have (on average 9.8125) internal successors, (157), 14 states have internal predecessors, (157), 4 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-25 05:59:08,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:59:08,811 INFO L93 Difference]: Finished difference Result 272952 states and 464001 transitions. [2023-12-25 05:59:08,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:59:08,814 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.8125) internal successors, (157), 14 states have internal predecessors, (157), 4 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) Word has length 124 [2023-12-25 05:59:08,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:59:10,692 INFO L225 Difference]: With dead ends: 272952 [2023-12-25 05:59:10,692 INFO L226 Difference]: Without dead ends: 272787 [2023-12-25 05:59:10,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-25 05:59:10,820 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 1127 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 4284 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 4504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 4284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:59:10,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 2469 Invalid, 4504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 4284 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:59:11,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272787 states. [2023-12-25 05:59:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272787 to 185607. [2023-12-25 05:59:21,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185607 states, 154897 states have (on average 1.5836717302465508) internal successors, (245306), 154908 states have internal predecessors, (245306), 30652 states have call successors, (30652), 49 states have call predecessors, (30652), 57 states have return successors, (39396), 30653 states have call predecessors, (39396), 30650 states have call successors, (39396) [2023-12-25 05:59:22,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185607 states to 185607 states and 315354 transitions. [2023-12-25 05:59:22,402 INFO L78 Accepts]: Start accepts. Automaton has 185607 states and 315354 transitions. Word has length 124 [2023-12-25 05:59:22,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:59:22,402 INFO L495 AbstractCegarLoop]: Abstraction has 185607 states and 315354 transitions. [2023-12-25 05:59:22,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.8125) internal successors, (157), 14 states have internal predecessors, (157), 4 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-25 05:59:22,402 INFO L276 IsEmpty]: Start isEmpty. Operand 185607 states and 315354 transitions. [2023-12-25 05:59:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:59:22,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:59:22,494 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 05:59:22,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:59:22,700 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 05:59:22,700 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:59:22,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:59:22,701 INFO L85 PathProgramCache]: Analyzing trace with hash -684261978, now seen corresponding path program 1 times [2023-12-25 05:59:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:59:22,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172191429] [2023-12-25 05:59:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:59:22,701 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 05:59:22,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:59:22,706 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 05:59:22,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:59:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:59:22,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:59:22,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:59:23,043 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 05:59:23,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:59:23,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:59:23,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172191429] [2023-12-25 05:59:23,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172191429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:59:23,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:59:23,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:59:23,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891186001] [2023-12-25 05:59:23,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:59:23,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:59:23,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:59:23,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:59:23,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:59:23,045 INFO L87 Difference]: Start difference. First operand 185607 states and 315354 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:59:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:59:30,581 INFO L93 Difference]: Finished difference Result 186101 states and 316081 transitions. [2023-12-25 05:59:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:59:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 125 [2023-12-25 05:59:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:59:31,718 INFO L225 Difference]: With dead ends: 186101 [2023-12-25 05:59:31,718 INFO L226 Difference]: Without dead ends: 185669 [2023-12-25 05:59:31,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 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 05:59:31,808 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 617 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:59:31,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 2931 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:59:31,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185669 states. [2023-12-25 05:59:40,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185669 to 185665. [2023-12-25 05:59:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185665 states, 154940 states have (on average 1.583619465599587) internal successors, (245366), 154953 states have internal predecessors, (245366), 30666 states have call successors, (30666), 51 states have call predecessors, (30666), 58 states have return successors, (39412), 30666 states have call predecessors, (39412), 30664 states have call successors, (39412) [2023-12-25 05:59:42,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185665 states to 185665 states and 315444 transitions. [2023-12-25 05:59:42,031 INFO L78 Accepts]: Start accepts. Automaton has 185665 states and 315444 transitions. Word has length 125 [2023-12-25 05:59:42,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:59:42,035 INFO L495 AbstractCegarLoop]: Abstraction has 185665 states and 315444 transitions. [2023-12-25 05:59:42,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:59:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 185665 states and 315444 transitions. [2023-12-25 05:59:42,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:59:42,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:59:42,120 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, 1, 1, 1] [2023-12-25 05:59:42,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:59:42,326 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 05:59:42,326 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:59:42,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:59:42,327 INFO L85 PathProgramCache]: Analyzing trace with hash -87113232, now seen corresponding path program 1 times [2023-12-25 05:59:42,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:59:42,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785428853] [2023-12-25 05:59:42,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:59:42,327 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 05:59:42,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:59:42,328 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 05:59:42,361 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 05:59:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:59:42,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:59:42,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:59:42,640 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 05:59:42,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:59:42,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:59:42,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785428853] [2023-12-25 05:59:42,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785428853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:59:42,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:59:42,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:59:42,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233641815] [2023-12-25 05:59:42,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:59:42,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:59:42,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:59:42,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:59:42,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:59:42,654 INFO L87 Difference]: Start difference. First operand 185665 states and 315444 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:59:50,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:59:50,676 INFO L93 Difference]: Finished difference Result 276025 states and 469053 transitions. [2023-12-25 05:59:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:59:50,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2023-12-25 05:59:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:59:51,593 INFO L225 Difference]: With dead ends: 276025 [2023-12-25 05:59:51,593 INFO L226 Difference]: Without dead ends: 183192 [2023-12-25 05:59:51,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:59:51,798 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 10 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:59:51,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1789 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:59:51,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183192 states. [2023-12-25 06:00:00,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183192 to 183190. [2023-12-25 06:00:00,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183190 states, 152918 states have (on average 1.5845158843301639) internal successors, (242301), 152818 states have internal predecessors, (242301), 30217 states have call successors, (30217), 50 states have call predecessors, (30217), 54 states have return successors, (37757), 30327 states have call predecessors, (37757), 30215 states have call successors, (37757) [2023-12-25 06:00:01,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183190 states to 183190 states and 310275 transitions. [2023-12-25 06:00:01,965 INFO L78 Accepts]: Start accepts. Automaton has 183190 states and 310275 transitions. Word has length 125 [2023-12-25 06:00:01,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:00:01,966 INFO L495 AbstractCegarLoop]: Abstraction has 183190 states and 310275 transitions. [2023-12-25 06:00:01,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 06:00:01,966 INFO L276 IsEmpty]: Start isEmpty. Operand 183190 states and 310275 transitions. [2023-12-25 06:00:02,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 06:00:02,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:00:02,052 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, 1, 1, 1] [2023-12-25 06:00:02,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 06:00:02,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:00:02,259 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:00:02,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:00:02,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2006896016, now seen corresponding path program 1 times [2023-12-25 06:00:02,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:00:02,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635538456] [2023-12-25 06:00:02,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:00:02,261 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 06:00:02,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:00:02,262 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:00:02,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 06:00:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:00:02,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 06:00:02,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:00:03,489 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 06:00:03,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:00:03,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:00:03,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635538456] [2023-12-25 06:00:03,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635538456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:00:03,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:00:03,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 06:00:03,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154586540] [2023-12-25 06:00:03,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:00:03,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 06:00:03,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:00:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 06:00:03,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-25 06:00:03,490 INFO L87 Difference]: Start difference. First operand 183190 states and 310275 transitions. Second operand has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 6 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-25 06:00:23,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:00:23,309 INFO L93 Difference]: Finished difference Result 365583 states and 630007 transitions. [2023-12-25 06:00:23,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 06:00:23,310 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 6 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 128 [2023-12-25 06:00:23,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:00:26,141 INFO L225 Difference]: With dead ends: 365583 [2023-12-25 06:00:26,142 INFO L226 Difference]: Without dead ends: 365221 [2023-12-25 06:00:26,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2023-12-25 06:00:26,345 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 939 mSDsluCounter, 5144 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 06:00:26,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 5674 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 06:00:27,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365221 states. [2023-12-25 06:00:50,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365221 to 365045. [2023-12-25 06:00:51,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365045 states, 304814 states have (on average 1.5854357083336068) internal successors, (483263), 304432 states have internal predecessors, (483263), 60087 states have call successors, (60087), 129 states have call predecessors, (60087), 143 states have return successors, (84781), 60501 states have call predecessors, (84781), 60081 states have call successors, (84781) [2023-12-25 06:00:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365045 states to 365045 states and 628131 transitions. [2023-12-25 06:00:53,321 INFO L78 Accepts]: Start accepts. Automaton has 365045 states and 628131 transitions. Word has length 128 [2023-12-25 06:00:53,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:00:53,322 INFO L495 AbstractCegarLoop]: Abstraction has 365045 states and 628131 transitions. [2023-12-25 06:00:53,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 6 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-25 06:00:53,322 INFO L276 IsEmpty]: Start isEmpty. Operand 365045 states and 628131 transitions. [2023-12-25 06:00:53,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 06:00:53,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:00:53,913 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, 1, 1, 1, 1] [2023-12-25 06:00:53,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 06:00:54,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:00:54,126 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:00:54,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:00:54,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1323796595, now seen corresponding path program 1 times [2023-12-25 06:00:54,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:00:54,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969767550] [2023-12-25 06:00:54,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:00:54,127 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 06:00:54,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:00:54,128 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:00:54,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 06:00:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:00:54,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 06:00:54,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:00:54,473 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 06:00:54,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:00:54,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:00:54,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969767550] [2023-12-25 06:00:54,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969767550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:00:54,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:00:54,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 06:00:54,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079469983] [2023-12-25 06:00:54,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:00:54,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 06:00:54,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:00:54,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 06:00:54,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-25 06:00:54,475 INFO L87 Difference]: Start difference. First operand 365045 states and 628131 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-12-25 06:01:11,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 06:01:11,114 INFO L93 Difference]: Finished difference Result 366153 states and 629731 transitions. [2023-12-25 06:01:11,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 06:01:11,115 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 129 [2023-12-25 06:01:11,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 06:01:13,422 INFO L225 Difference]: With dead ends: 366153 [2023-12-25 06:01:13,422 INFO L226 Difference]: Without dead ends: 365059 [2023-12-25 06:01:13,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-12-25 06:01:13,574 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 680 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 06:01:13,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 3180 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 06:01:14,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365059 states. [2023-12-25 06:01:35,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365059 to 365057. [2023-12-25 06:01:36,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365057 states, 304820 states have (on average 1.5854241847647792) internal successors, (483269), 304444 states have internal predecessors, (483269), 60087 states have call successors, (60087), 129 states have call predecessors, (60087), 149 states have return successors, (84795), 60501 states have call predecessors, (84795), 60081 states have call successors, (84795) [2023-12-25 06:01:38,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365057 states to 365057 states and 628151 transitions. [2023-12-25 06:01:38,530 INFO L78 Accepts]: Start accepts. Automaton has 365057 states and 628151 transitions. Word has length 129 [2023-12-25 06:01:38,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 06:01:38,532 INFO L495 AbstractCegarLoop]: Abstraction has 365057 states and 628151 transitions. [2023-12-25 06:01:38,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-12-25 06:01:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 365057 states and 628151 transitions. [2023-12-25 06:01:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 06:01:38,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 06:01:38,710 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, 1, 1, 1, 1] [2023-12-25 06:01:38,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-25 06:01:39,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 06:01:39,187 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 06:01:39,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 06:01:39,188 INFO L85 PathProgramCache]: Analyzing trace with hash -968772325, now seen corresponding path program 1 times [2023-12-25 06:01:39,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 06:01:39,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689661642] [2023-12-25 06:01:39,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 06:01:39,188 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 06:01:39,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 06:01:39,205 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 06:01:39,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 06:01:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 06:01:39,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 06:01:39,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 06:01:40,153 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 06:01:40,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 06:01:40,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 06:01:40,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689661642] [2023-12-25 06:01:40,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689661642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 06:01:40,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 06:01:40,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 06:01:40,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825410702] [2023-12-25 06:01:40,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 06:01:40,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 06:01:40,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 06:01:40,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 06:01:40,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-25 06:01:40,155 INFO L87 Difference]: Start difference. First operand 365057 states and 628151 transitions. Second operand has 14 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 6 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13)