/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:46:00,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:46:00,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:46:00,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:46:00,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:46:00,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:46:00,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:46:00,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:46:00,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:46:00,904 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:46:00,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:46:00,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:46:00,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:46:00,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:46:00,907 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:46:00,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:46:00,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:46:00,908 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:46:00,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:46:00,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:46:00,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:46:00,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:46:00,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:46:00,910 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:46:00,910 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:46:00,910 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:46:00,911 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:46:00,911 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:46:00,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:46:00,911 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:46:00,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:46:00,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:46:00,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:46:00,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:46:00,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:46:00,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:46:00,913 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:46:00,913 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:46:00,913 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:46:00,914 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:46:00,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:46:00,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:46:00,914 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:46:00,914 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:46:00,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:46:00,915 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:46:00,915 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:46:01,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:46:01,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:46:01,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:46:01,154 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:46:01,154 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:46:01,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2023-12-25 05:46:02,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:46:02,733 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:46:02,734 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2023-12-25 05:46:02,763 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14642cc56/30a759aaa3ac45589ba9ea2411e92085/FLAGe461e74a3 [2023-12-25 05:46:02,778 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14642cc56/30a759aaa3ac45589ba9ea2411e92085 [2023-12-25 05:46:02,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:46:02,782 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:46:02,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:46:02,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:46:02,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:46:02,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:46:02" (1/1) ... [2023-12-25 05:46:02,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496413c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:02, skipping insertion in model container [2023-12-25 05:46:02,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:46:02" (1/1) ... [2023-12-25 05:46:02,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:46:03,155 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c[8336,8349] [2023-12-25 05:46:03,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:46:03,459 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:46:03,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:46:03,499 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c[8336,8349] [2023-12-25 05:46:03,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:46:03,571 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:46:03,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-25 05:46:03,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [66] [2023-12-25 05:46:03,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [115] [2023-12-25 05:46:03,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [431] [2023-12-25 05:46:03,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [440] [2023-12-25 05:46:03,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [498] [2023-12-25 05:46:03,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [723] [2023-12-25 05:46:03,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [821] [2023-12-25 05:46:03,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1895] [2023-12-25 05:46:03,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2170] [2023-12-25 05:46:03,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2571] [2023-12-25 05:46:03,608 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c[8336,8349] [2023-12-25 05:46:03,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:46:03,716 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:46:03,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03 WrapperNode [2023-12-25 05:46:03,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:46:03,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:46:03,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:46:03,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:46:03,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,808 INFO L138 Inliner]: procedures = 130, calls = 192, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 914 [2023-12-25 05:46:03,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:46:03,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:46:03,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:46:03,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:46:03,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,882 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 05:46:03,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:46:03,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:46:03,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:46:03,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:46:03,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (1/1) ... [2023-12-25 05:46:03,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:46:03,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:46:03,991 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 05:46:04,004 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 05:46:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-25 05:46:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-25 05:46:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-25 05:46:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-25 05:46:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-25 05:46:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-25 05:46:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-25 05:46:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-25 05:46:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-25 05:46:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-25 05:46:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-25 05:46:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-25 05:46:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-25 05:46:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-25 05:46:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-25 05:46:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-25 05:46:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:46:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-25 05:46:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-25 05:46:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-25 05:46:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-25 05:46:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-25 05:46:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-25 05:46:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:46:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:46:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-25 05:46:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-25 05:46:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-25 05:46:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-25 05:46:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:46:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:46:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:46:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:46:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-25 05:46:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-25 05:46:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-25 05:46:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-25 05:46:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-25 05:46:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-25 05:46:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-25 05:46:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-25 05:46:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-25 05:46:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-25 05:46:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:46:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:46:04,217 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:46:04,220 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:46:05,036 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:46:05,097 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:46:05,097 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:46:05,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:46:05 BoogieIcfgContainer [2023-12-25 05:46:05,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:46:05,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:46:05,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:46:05,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:46:05,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:46:02" (1/3) ... [2023-12-25 05:46:05,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102b7655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:46:05, skipping insertion in model container [2023-12-25 05:46:05,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:46:03" (2/3) ... [2023-12-25 05:46:05,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102b7655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:46:05, skipping insertion in model container [2023-12-25 05:46:05,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:46:05" (3/3) ... [2023-12-25 05:46:05,105 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product19.cil.c [2023-12-25 05:46:05,120 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:46:05,120 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:46:05,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:46:05,171 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;@5ddaa4a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:46:05,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:46:05,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 223 states have (on average 1.5874439461883407) internal successors, (354), 227 states have internal predecessors, (354), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-25 05:46:05,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:46:05,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:05,198 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 05:46:05,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:05,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:05,203 INFO L85 PathProgramCache]: Analyzing trace with hash -99307971, now seen corresponding path program 1 times [2023-12-25 05:46:05,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:05,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702658639] [2023-12-25 05:46:05,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:05,214 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 05:46:05,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:05,217 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 05:46:05,244 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 (2)] Waiting until timeout for monitored process [2023-12-25 05:46:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:05,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:46:05,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:05,605 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 05:46:05,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:05,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:05,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702658639] [2023-12-25 05:46:05,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702658639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:05,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:05,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:46:05,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262180821] [2023-12-25 05:46:05,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:05,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:46:05,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:05,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:46:05,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:46:05,654 INFO L87 Difference]: Start difference. First operand has 294 states, 223 states have (on average 1.5874439461883407) internal successors, (354), 227 states have internal predecessors, (354), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:05,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:05,790 INFO L93 Difference]: Finished difference Result 442 states and 671 transitions. [2023-12-25 05:46:05,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:46:05,795 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2023-12-25 05:46:05,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:05,810 INFO L225 Difference]: With dead ends: 442 [2023-12-25 05:46:05,810 INFO L226 Difference]: Without dead ends: 290 [2023-12-25 05:46:05,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 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 05:46:05,822 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:05,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 432 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:46:05,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-12-25 05:46:05,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2023-12-25 05:46:05,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 221 states have (on average 1.5701357466063348) internal successors, (347), 223 states have internal predecessors, (347), 50 states have call successors, (50), 19 states have call predecessors, (50), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-25 05:46:05,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 444 transitions. [2023-12-25 05:46:05,896 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 444 transitions. Word has length 96 [2023-12-25 05:46:05,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:05,897 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 444 transitions. [2023-12-25 05:46:05,897 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:05,898 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 444 transitions. [2023-12-25 05:46:05,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:46:05,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:05,903 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, 1] [2023-12-25 05:46:05,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:46:06,110 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 05:46:06,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:06,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1006318737, now seen corresponding path program 1 times [2023-12-25 05:46:06,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:06,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258638531] [2023-12-25 05:46:06,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:06,114 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 05:46:06,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:06,115 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 05:46:06,119 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 05:46:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:06,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:46:06,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:06,465 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 05:46:06,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:06,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:06,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258638531] [2023-12-25 05:46:06,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258638531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:06,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:06,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:46:06,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671028230] [2023-12-25 05:46:06,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:06,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:46:06,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:06,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:46:06,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:46:06,472 INFO L87 Difference]: Start difference. First operand 290 states and 444 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:06,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:06,648 INFO L93 Difference]: Finished difference Result 575 states and 882 transitions. [2023-12-25 05:46:06,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:46:06,649 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 97 [2023-12-25 05:46:06,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:06,656 INFO L225 Difference]: With dead ends: 575 [2023-12-25 05:46:06,656 INFO L226 Difference]: Without dead ends: 292 [2023-12-25 05:46:06,658 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 05:46:06,659 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 8 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:06,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1669 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:46:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-12-25 05:46:06,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2023-12-25 05:46:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 222 states have (on average 1.5675675675675675) internal successors, (348), 225 states have internal predecessors, (348), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2023-12-25 05:46:06,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 447 transitions. [2023-12-25 05:46:06,689 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 447 transitions. Word has length 97 [2023-12-25 05:46:06,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:06,690 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 447 transitions. [2023-12-25 05:46:06,690 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:06,690 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 447 transitions. [2023-12-25 05:46:06,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 05:46:06,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:06,694 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, 1] [2023-12-25 05:46:06,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:46:06,895 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 05:46:06,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:06,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1058352424, now seen corresponding path program 1 times [2023-12-25 05:46:06,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:06,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869437491] [2023-12-25 05:46:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:06,897 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 05:46:06,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:06,899 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 05:46:06,928 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 05:46:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:07,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:46:07,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:07,266 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 05:46:07,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:07,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:07,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869437491] [2023-12-25 05:46:07,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869437491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:07,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:07,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:46:07,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26321296] [2023-12-25 05:46:07,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:07,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:46:07,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:07,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:46:07,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:46:07,274 INFO L87 Difference]: Start difference. First operand 292 states and 447 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:07,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:07,424 INFO L93 Difference]: Finished difference Result 577 states and 886 transitions. [2023-12-25 05:46:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:46:07,425 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 98 [2023-12-25 05:46:07,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:07,427 INFO L225 Difference]: With dead ends: 577 [2023-12-25 05:46:07,427 INFO L226 Difference]: Without dead ends: 294 [2023-12-25 05:46:07,429 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 05:46:07,433 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 8 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:07,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1655 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:46:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-12-25 05:46:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2023-12-25 05:46:07,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 223 states have (on average 1.5650224215246638) internal successors, (349), 227 states have internal predecessors, (349), 50 states have call successors, (50), 19 states have call predecessors, (50), 20 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2023-12-25 05:46:07,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 452 transitions. [2023-12-25 05:46:07,449 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 452 transitions. Word has length 98 [2023-12-25 05:46:07,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:07,449 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 452 transitions. [2023-12-25 05:46:07,449 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:07,450 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 452 transitions. [2023-12-25 05:46:07,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 05:46:07,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:07,452 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] [2023-12-25 05:46:07,461 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 05:46:07,658 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 05:46:07,659 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:07,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:07,660 INFO L85 PathProgramCache]: Analyzing trace with hash 809512465, now seen corresponding path program 1 times [2023-12-25 05:46:07,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:07,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751903751] [2023-12-25 05:46:07,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:07,661 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 05:46:07,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:07,662 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 05:46:07,693 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 05:46:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:07,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:46:07,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:07,962 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 05:46:07,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:07,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:07,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751903751] [2023-12-25 05:46:07,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751903751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:07,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:07,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:46:07,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101344858] [2023-12-25 05:46:07,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:07,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:46:07,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:07,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:46:07,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:46:07,968 INFO L87 Difference]: Start difference. First operand 294 states and 452 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:08,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:08,102 INFO L93 Difference]: Finished difference Result 569 states and 876 transitions. [2023-12-25 05:46:08,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:46:08,103 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 99 [2023-12-25 05:46:08,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:08,107 INFO L225 Difference]: With dead ends: 569 [2023-12-25 05:46:08,107 INFO L226 Difference]: Without dead ends: 294 [2023-12-25 05:46:08,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:46:08,113 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 8 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:08,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1669 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:46:08,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-12-25 05:46:08,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2023-12-25 05:46:08,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 223 states have (on average 1.5650224215246638) internal successors, (349), 227 states have internal predecessors, (349), 50 states have call successors, (50), 19 states have call predecessors, (50), 20 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2023-12-25 05:46:08,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 451 transitions. [2023-12-25 05:46:08,136 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 451 transitions. Word has length 99 [2023-12-25 05:46:08,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:08,140 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 451 transitions. [2023-12-25 05:46:08,141 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:08,141 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 451 transitions. [2023-12-25 05:46:08,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 05:46:08,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:08,143 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] [2023-12-25 05:46:08,153 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 05:46:08,351 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 05:46:08,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:08,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:08,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1402276214, now seen corresponding path program 2 times [2023-12-25 05:46:08,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:08,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072538613] [2023-12-25 05:46:08,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:46:08,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:46:08,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:08,354 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 05:46:08,355 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 05:46:08,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 05:46:08,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:46:08,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:08,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:08,582 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 05:46:08,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:08,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:08,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072538613] [2023-12-25 05:46:08,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072538613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:08,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:08,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:08,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86035575] [2023-12-25 05:46:08,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:08,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:08,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:08,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:08,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:08,584 INFO L87 Difference]: Start difference. First operand 294 states and 451 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:08,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:08,637 INFO L93 Difference]: Finished difference Result 441 states and 661 transitions. [2023-12-25 05:46:08,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:08,638 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2023-12-25 05:46:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:08,641 INFO L225 Difference]: With dead ends: 441 [2023-12-25 05:46:08,642 INFO L226 Difference]: Without dead ends: 296 [2023-12-25 05:46:08,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 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 05:46:08,643 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 0 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:08,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 857 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:08,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-25 05:46:08,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2023-12-25 05:46:08,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 225 states have (on average 1.56) internal successors, (351), 229 states have internal predecessors, (351), 50 states have call successors, (50), 19 states have call predecessors, (50), 20 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2023-12-25 05:46:08,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 453 transitions. [2023-12-25 05:46:08,659 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 453 transitions. Word has length 100 [2023-12-25 05:46:08,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:08,660 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 453 transitions. [2023-12-25 05:46:08,660 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:08,661 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 453 transitions. [2023-12-25 05:46:08,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:46:08,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:08,664 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] [2023-12-25 05:46:08,672 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 05:46:08,869 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 05:46:08,869 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:08,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:08,870 INFO L85 PathProgramCache]: Analyzing trace with hash 262388631, now seen corresponding path program 1 times [2023-12-25 05:46:08,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:08,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572455079] [2023-12-25 05:46:08,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:08,871 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 05:46:08,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:08,872 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 05:46:08,875 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 05:46:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:09,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:46:09,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:09,186 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 05:46:09,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:09,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:09,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572455079] [2023-12-25 05:46:09,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572455079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:09,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:09,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:46:09,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710983042] [2023-12-25 05:46:09,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:09,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:46:09,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:09,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:46:09,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:46:09,189 INFO L87 Difference]: Start difference. First operand 296 states and 453 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:09,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:09,316 INFO L93 Difference]: Finished difference Result 575 states and 883 transitions. [2023-12-25 05:46:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:46:09,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2023-12-25 05:46:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:09,320 INFO L225 Difference]: With dead ends: 575 [2023-12-25 05:46:09,320 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 05:46:09,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 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 05:46:09,322 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 6 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1671 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 05:46:09,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1671 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:46:09,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 05:46:09,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-12-25 05:46:09,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 226 states have (on average 1.5575221238938053) internal successors, (352), 231 states have internal predecessors, (352), 50 states have call successors, (50), 19 states have call predecessors, (50), 21 states have return successors, (54), 47 states have call predecessors, (54), 47 states have call successors, (54) [2023-12-25 05:46:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 456 transitions. [2023-12-25 05:46:09,339 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 456 transitions. Word has length 105 [2023-12-25 05:46:09,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:09,340 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 456 transitions. [2023-12-25 05:46:09,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:09,340 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 456 transitions. [2023-12-25 05:46:09,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:46:09,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:09,342 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] [2023-12-25 05:46:09,351 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 05:46:09,549 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 05:46:09,549 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:09,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:09,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1145924393, now seen corresponding path program 1 times [2023-12-25 05:46:09,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:09,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369319576] [2023-12-25 05:46:09,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:09,550 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 05:46:09,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:09,552 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 05:46:09,553 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 05:46:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:09,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:46:09,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:09,853 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 05:46:09,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:09,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:09,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369319576] [2023-12-25 05:46:09,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369319576] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:09,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:09,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:46:09,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30198553] [2023-12-25 05:46:09,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:09,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:46:09,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:09,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:46:09,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:46:09,855 INFO L87 Difference]: Start difference. First operand 298 states and 456 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:09,972 INFO L93 Difference]: Finished difference Result 573 states and 878 transitions. [2023-12-25 05:46:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:46:09,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2023-12-25 05:46:09,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:09,975 INFO L225 Difference]: With dead ends: 573 [2023-12-25 05:46:09,975 INFO L226 Difference]: Without dead ends: 298 [2023-12-25 05:46:09,976 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 05:46:09,977 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 8 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:09,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1656 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:46:09,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-25 05:46:09,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-12-25 05:46:09,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 226 states have (on average 1.5575221238938053) internal successors, (352), 231 states have internal predecessors, (352), 50 states have call successors, (50), 19 states have call predecessors, (50), 21 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2023-12-25 05:46:09,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 455 transitions. [2023-12-25 05:46:09,988 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 455 transitions. Word has length 106 [2023-12-25 05:46:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:09,988 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 455 transitions. [2023-12-25 05:46:09,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 455 transitions. [2023-12-25 05:46:09,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:46:09,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:09,990 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] [2023-12-25 05:46:10,001 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 05:46:10,204 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 05:46:10,204 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:10,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1934911008, now seen corresponding path program 2 times [2023-12-25 05:46:10,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:10,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086176484] [2023-12-25 05:46:10,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 05:46:10,206 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 05:46:10,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:10,207 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 05:46:10,209 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 05:46:10,448 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 05:46:10,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 05:46:10,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:46:10,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:10,490 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 05:46:10,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:10,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:10,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086176484] [2023-12-25 05:46:10,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086176484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:10,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:10,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:46:10,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928783666] [2023-12-25 05:46:10,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:10,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:46:10,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:10,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:46:10,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:46:10,492 INFO L87 Difference]: Start difference. First operand 298 states and 455 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:10,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:10,623 INFO L93 Difference]: Finished difference Result 575 states and 883 transitions. [2023-12-25 05:46:10,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:46:10,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 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 05:46:10,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:10,626 INFO L225 Difference]: With dead ends: 575 [2023-12-25 05:46:10,626 INFO L226 Difference]: Without dead ends: 300 [2023-12-25 05:46:10,627 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 05:46:10,628 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 6 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:10,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1658 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:46:10,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-25 05:46:10,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-12-25 05:46:10,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 227 states have (on average 1.5550660792951543) internal successors, (353), 233 states have internal predecessors, (353), 50 states have call successors, (50), 19 states have call predecessors, (50), 22 states have return successors, (57), 47 states have call predecessors, (57), 47 states have call successors, (57) [2023-12-25 05:46:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 460 transitions. [2023-12-25 05:46:10,640 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 460 transitions. Word has length 107 [2023-12-25 05:46:10,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:10,641 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 460 transitions. [2023-12-25 05:46:10,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:46:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 460 transitions. [2023-12-25 05:46:10,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:46:10,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:10,643 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] [2023-12-25 05:46:10,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:46:10,850 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 05:46:10,851 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:10,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:10,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1106072622, now seen corresponding path program 1 times [2023-12-25 05:46:10,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:10,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571208086] [2023-12-25 05:46:10,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:10,853 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 05:46:10,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:10,854 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 05:46:10,857 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 05:46:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:11,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:11,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:11,118 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 05:46:11,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:11,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:11,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571208086] [2023-12-25 05:46:11,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571208086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:11,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:11,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:11,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537270505] [2023-12-25 05:46:11,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:11,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:11,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:11,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:11,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:11,121 INFO L87 Difference]: Start difference. First operand 300 states and 460 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:11,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:11,190 INFO L93 Difference]: Finished difference Result 626 states and 973 transitions. [2023-12-25 05:46:11,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:11,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2023-12-25 05:46:11,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:11,193 INFO L225 Difference]: With dead ends: 626 [2023-12-25 05:46:11,193 INFO L226 Difference]: Without dead ends: 352 [2023-12-25 05:46:11,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:11,196 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 102 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:11,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 834 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:11,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-25 05:46:11,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 347. [2023-12-25 05:46:11,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 263 states have (on average 1.570342205323194) internal successors, (413), 269 states have internal predecessors, (413), 61 states have call successors, (61), 19 states have call predecessors, (61), 22 states have return successors, (70), 58 states have call predecessors, (70), 58 states have call successors, (70) [2023-12-25 05:46:11,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 544 transitions. [2023-12-25 05:46:11,212 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 544 transitions. Word has length 108 [2023-12-25 05:46:11,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:11,212 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 544 transitions. [2023-12-25 05:46:11,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:11,213 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 544 transitions. [2023-12-25 05:46:11,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:46:11,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:11,214 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 05:46:11,221 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 05:46:11,420 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 05:46:11,421 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:11,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:11,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2092902700, now seen corresponding path program 1 times [2023-12-25 05:46:11,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:11,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528877429] [2023-12-25 05:46:11,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:11,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:46:11,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:11,423 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 05:46:11,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:46:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:11,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:46:11,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:11,695 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 05:46:11,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:46:11,761 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 05:46:11,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:11,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528877429] [2023-12-25 05:46:11,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528877429] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:46:11,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:46:11,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 05:46:11,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915608717] [2023-12-25 05:46:11,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:46:11,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:46:11,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:11,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:46:11,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:46:11,764 INFO L87 Difference]: Start difference. First operand 347 states and 544 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:46:12,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:12,030 INFO L93 Difference]: Finished difference Result 822 states and 1338 transitions. [2023-12-25 05:46:12,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:46:12,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 109 [2023-12-25 05:46:12,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:12,035 INFO L225 Difference]: With dead ends: 822 [2023-12-25 05:46:12,036 INFO L226 Difference]: Without dead ends: 677 [2023-12-25 05:46:12,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 212 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 05:46:12,037 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 535 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:12,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1856 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:46:12,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-12-25 05:46:12,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 662. [2023-12-25 05:46:12,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 514 states have (on average 1.6303501945525292) internal successors, (838), 520 states have internal predecessors, (838), 125 states have call successors, (125), 19 states have call predecessors, (125), 22 states have return successors, (144), 122 states have call predecessors, (144), 122 states have call successors, (144) [2023-12-25 05:46:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1107 transitions. [2023-12-25 05:46:12,090 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1107 transitions. Word has length 109 [2023-12-25 05:46:12,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:12,091 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 1107 transitions. [2023-12-25 05:46:12,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:46:12,092 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1107 transitions. [2023-12-25 05:46:12,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:46:12,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:12,095 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 05:46:12,102 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 (11)] Ended with exit code 0 [2023-12-25 05:46:12,302 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 05:46:12,302 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:12,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:12,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1586103447, now seen corresponding path program 1 times [2023-12-25 05:46:12,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:12,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240391973] [2023-12-25 05:46:12,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:12,303 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 05:46:12,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:12,304 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 05:46:12,305 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 05:46:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:12,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:12,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:12,578 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 05:46:12,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:12,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:12,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240391973] [2023-12-25 05:46:12,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240391973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:12,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:12,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:12,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333387399] [2023-12-25 05:46:12,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:12,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:12,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:12,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:12,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:12,581 INFO L87 Difference]: Start difference. First operand 662 states and 1107 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:12,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:12,666 INFO L93 Difference]: Finished difference Result 1581 states and 2678 transitions. [2023-12-25 05:46:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:12,666 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, (16), 2 states have call predecessors, (16), 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 05:46:12,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:12,673 INFO L225 Difference]: With dead ends: 1581 [2023-12-25 05:46:12,673 INFO L226 Difference]: Without dead ends: 979 [2023-12-25 05:46:12,677 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 05:46:12,677 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 100 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:12,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 868 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:12,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2023-12-25 05:46:12,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 974. [2023-12-25 05:46:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 762 states have (on average 1.6404199475065617) internal successors, (1250), 768 states have internal predecessors, (1250), 189 states have call successors, (189), 19 states have call predecessors, (189), 22 states have return successors, (218), 186 states have call predecessors, (218), 186 states have call successors, (218) [2023-12-25 05:46:12,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1657 transitions. [2023-12-25 05:46:12,726 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1657 transitions. Word has length 115 [2023-12-25 05:46:12,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:12,727 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1657 transitions. [2023-12-25 05:46:12,727 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1657 transitions. [2023-12-25 05:46:12,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:46:12,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:12,732 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 05:46:12,741 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 05:46:12,938 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 05:46:12,938 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:12,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:12,939 INFO L85 PathProgramCache]: Analyzing trace with hash 886321682, now seen corresponding path program 1 times [2023-12-25 05:46:12,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:12,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538287801] [2023-12-25 05:46:12,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:12,940 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 05:46:12,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:12,941 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 05:46:12,957 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 05:46:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:13,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:13,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:13,208 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 05:46:13,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:13,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:13,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538287801] [2023-12-25 05:46:13,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538287801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:13,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:13,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:13,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948067991] [2023-12-25 05:46:13,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:13,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:13,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:13,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:13,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:13,210 INFO L87 Difference]: Start difference. First operand 974 states and 1657 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:13,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:13,295 INFO L93 Difference]: Finished difference Result 2330 states and 3980 transitions. [2023-12-25 05:46:13,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:13,296 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, (16), 2 states have call predecessors, (16), 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 05:46:13,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:13,303 INFO L225 Difference]: With dead ends: 2330 [2023-12-25 05:46:13,303 INFO L226 Difference]: Without dead ends: 1466 [2023-12-25 05:46:13,307 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 05:46:13,308 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 98 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:13,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 851 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:13,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2023-12-25 05:46:13,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1461. [2023-12-25 05:46:13,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1154 states have (on average 1.6464471403812826) internal successors, (1900), 1160 states have internal predecessors, (1900), 284 states have call successors, (284), 19 states have call predecessors, (284), 22 states have return successors, (313), 281 states have call predecessors, (313), 281 states have call successors, (313) [2023-12-25 05:46:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2497 transitions. [2023-12-25 05:46:13,375 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2497 transitions. Word has length 116 [2023-12-25 05:46:13,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:13,376 INFO L495 AbstractCegarLoop]: Abstraction has 1461 states and 2497 transitions. [2023-12-25 05:46:13,376 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:13,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2497 transitions. [2023-12-25 05:46:13,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 05:46:13,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:13,384 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 05:46:13,393 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 05:46:13,590 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 05:46:13,590 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:13,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:13,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1268220565, now seen corresponding path program 1 times [2023-12-25 05:46:13,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:13,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254284988] [2023-12-25 05:46:13,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:13,591 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 05:46:13,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:13,592 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 05:46:13,593 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 05:46:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:13,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:13,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:13,842 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 05:46:13,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:13,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:13,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254284988] [2023-12-25 05:46:13,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254284988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:13,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:13,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:13,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585598] [2023-12-25 05:46:13,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:13,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:13,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:13,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:13,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:13,873 INFO L87 Difference]: Start difference. First operand 1461 states and 2497 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:13,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:13,990 INFO L93 Difference]: Finished difference Result 3432 states and 5905 transitions. [2023-12-25 05:46:13,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:13,991 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, (16), 2 states have call predecessors, (16), 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 05:46:13,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:14,004 INFO L225 Difference]: With dead ends: 3432 [2023-12-25 05:46:14,004 INFO L226 Difference]: Without dead ends: 2201 [2023-12-25 05:46:14,011 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 05:46:14,012 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 96 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:14,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 848 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:14,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2023-12-25 05:46:14,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2196. [2023-12-25 05:46:14,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1766 states have (on average 1.6517553793884485) internal successors, (2917), 1772 states have internal predecessors, (2917), 407 states have call successors, (407), 19 states have call predecessors, (407), 22 states have return successors, (452), 404 states have call predecessors, (452), 404 states have call successors, (452) [2023-12-25 05:46:14,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3776 transitions. [2023-12-25 05:46:14,123 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3776 transitions. Word has length 117 [2023-12-25 05:46:14,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:14,123 INFO L495 AbstractCegarLoop]: Abstraction has 2196 states and 3776 transitions. [2023-12-25 05:46:14,124 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:14,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3776 transitions. [2023-12-25 05:46:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:46:14,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:14,135 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 05:46:14,143 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 05:46:14,341 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 05:46:14,342 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:14,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:14,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1766047917, now seen corresponding path program 1 times [2023-12-25 05:46:14,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:14,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298444537] [2023-12-25 05:46:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:14,343 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 05:46:14,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:14,344 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 05:46:14,353 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 05:46:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:14,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:14,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:14,573 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 05:46:14,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:14,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:14,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298444537] [2023-12-25 05:46:14,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298444537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:14,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:14,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:14,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075407149] [2023-12-25 05:46:14,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:14,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:14,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:14,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:14,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:14,575 INFO L87 Difference]: Start difference. First operand 2196 states and 3776 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:14,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:14,733 INFO L93 Difference]: Finished difference Result 5142 states and 8898 transitions. [2023-12-25 05:46:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:14,734 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, (16), 2 states have call predecessors, (16), 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 05:46:14,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:14,778 INFO L225 Difference]: With dead ends: 5142 [2023-12-25 05:46:14,778 INFO L226 Difference]: Without dead ends: 3373 [2023-12-25 05:46:14,784 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 05:46:14,785 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 94 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:14,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 848 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:14,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2023-12-25 05:46:14,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3368. [2023-12-25 05:46:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3368 states, 2759 states have (on average 1.6553098948894527) internal successors, (4567), 2765 states have internal predecessors, (4567), 586 states have call successors, (586), 19 states have call predecessors, (586), 22 states have return successors, (657), 583 states have call predecessors, (657), 583 states have call successors, (657) [2023-12-25 05:46:14,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3368 states to 3368 states and 5810 transitions. [2023-12-25 05:46:14,941 INFO L78 Accepts]: Start accepts. Automaton has 3368 states and 5810 transitions. Word has length 118 [2023-12-25 05:46:14,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:14,942 INFO L495 AbstractCegarLoop]: Abstraction has 3368 states and 5810 transitions. [2023-12-25 05:46:14,942 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:14,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3368 states and 5810 transitions. [2023-12-25 05:46:14,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 05:46:14,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:14,956 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 05:46:15,007 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 05:46:15,160 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 05:46:15,160 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:15,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:15,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1922263175, now seen corresponding path program 1 times [2023-12-25 05:46:15,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:15,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962945013] [2023-12-25 05:46:15,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:15,161 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 05:46:15,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:15,162 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 05:46:15,169 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 05:46:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:15,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:15,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:15,404 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 05:46:15,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:15,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:15,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962945013] [2023-12-25 05:46:15,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962945013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:15,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:15,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:15,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792869739] [2023-12-25 05:46:15,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:15,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:15,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:15,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:15,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:15,406 INFO L87 Difference]: Start difference. First operand 3368 states and 5810 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:15,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:15,645 INFO L93 Difference]: Finished difference Result 7997 states and 13852 transitions. [2023-12-25 05:46:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:15,646 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, (16), 2 states have call predecessors, (16), 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 05:46:15,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:15,677 INFO L225 Difference]: With dead ends: 7997 [2023-12-25 05:46:15,677 INFO L226 Difference]: Without dead ends: 5343 [2023-12-25 05:46:15,689 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 05:46:15,690 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 92 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:15,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 852 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:15,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5343 states. [2023-12-25 05:46:15,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5343 to 5338. [2023-12-25 05:46:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 4353 states have (on average 1.6443831840110268) internal successors, (7158), 4359 states have internal predecessors, (7158), 962 states have call successors, (962), 19 states have call predecessors, (962), 22 states have return successors, (1077), 959 states have call predecessors, (1077), 959 states have call successors, (1077) [2023-12-25 05:46:16,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 9197 transitions. [2023-12-25 05:46:16,018 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 9197 transitions. Word has length 119 [2023-12-25 05:46:16,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:16,019 INFO L495 AbstractCegarLoop]: Abstraction has 5338 states and 9197 transitions. [2023-12-25 05:46:16,019 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:16,019 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 9197 transitions. [2023-12-25 05:46:16,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:46:16,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:16,043 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, 1] [2023-12-25 05:46:16,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:46:16,250 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 05:46:16,251 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:16,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:16,251 INFO L85 PathProgramCache]: Analyzing trace with hash -334330825, now seen corresponding path program 1 times [2023-12-25 05:46:16,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:16,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574438117] [2023-12-25 05:46:16,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:16,252 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 05:46:16,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:16,253 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 05:46:16,253 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 05:46:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:16,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:16,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:16,498 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 05:46:16,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:16,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:16,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574438117] [2023-12-25 05:46:16,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574438117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:16,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:16,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:16,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782377840] [2023-12-25 05:46:16,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:16,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:16,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:16,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:16,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:16,500 INFO L87 Difference]: Start difference. First operand 5338 states and 9197 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:16,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:16,864 INFO L93 Difference]: Finished difference Result 13134 states and 22762 transitions. [2023-12-25 05:46:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:16,865 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, (16), 2 states have call predecessors, (16), 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 05:46:16,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:16,928 INFO L225 Difference]: With dead ends: 13134 [2023-12-25 05:46:16,928 INFO L226 Difference]: Without dead ends: 8876 [2023-12-25 05:46:16,949 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 05:46:16,950 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 90 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:16,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 851 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:16,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8876 states. [2023-12-25 05:46:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8876 to 8871. [2023-12-25 05:46:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8871 states, 7280 states have (on average 1.642032967032967) internal successors, (11954), 7286 states have internal predecessors, (11954), 1568 states have call successors, (1568), 19 states have call predecessors, (1568), 22 states have return successors, (1761), 1565 states have call predecessors, (1761), 1565 states have call successors, (1761) [2023-12-25 05:46:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8871 states to 8871 states and 15283 transitions. [2023-12-25 05:46:17,433 INFO L78 Accepts]: Start accepts. Automaton has 8871 states and 15283 transitions. Word has length 120 [2023-12-25 05:46:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:17,433 INFO L495 AbstractCegarLoop]: Abstraction has 8871 states and 15283 transitions. [2023-12-25 05:46:17,434 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 8871 states and 15283 transitions. [2023-12-25 05:46:17,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:46:17,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:17,464 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 05:46:17,472 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 05:46:17,672 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 05:46:17,673 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:17,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:17,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1631885781, now seen corresponding path program 1 times [2023-12-25 05:46:17,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:17,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501582654] [2023-12-25 05:46:17,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:17,674 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 05:46:17,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:17,675 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 05:46:17,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:46:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:17,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:17,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:17,923 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 05:46:17,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:17,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:17,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501582654] [2023-12-25 05:46:17,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501582654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:17,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:17,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:17,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208761801] [2023-12-25 05:46:17,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:17,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:17,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:17,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:17,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:17,933 INFO L87 Difference]: Start difference. First operand 8871 states and 15283 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:18,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:18,506 INFO L93 Difference]: Finished difference Result 22906 states and 39615 transitions. [2023-12-25 05:46:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:18,507 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, (16), 2 states have call predecessors, (16), 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 05:46:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:18,576 INFO L225 Difference]: With dead ends: 22906 [2023-12-25 05:46:18,577 INFO L226 Difference]: Without dead ends: 15548 [2023-12-25 05:46:18,608 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 05:46:18,609 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 88 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:18,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 859 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:18,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15548 states. [2023-12-25 05:46:19,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15548 to 15543. [2023-12-25 05:46:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15543 states, 12749 states have (on average 1.6326770727115851) internal successors, (20815), 12755 states have internal predecessors, (20815), 2771 states have call successors, (2771), 19 states have call predecessors, (2771), 22 states have return successors, (3108), 2768 states have call predecessors, (3108), 2768 states have call successors, (3108) [2023-12-25 05:46:19,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 26694 transitions. [2023-12-25 05:46:19,436 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 26694 transitions. Word has length 121 [2023-12-25 05:46:19,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:19,437 INFO L495 AbstractCegarLoop]: Abstraction has 15543 states and 26694 transitions. [2023-12-25 05:46:19,437 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:19,437 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 26694 transitions. [2023-12-25 05:46:19,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:46:19,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:19,478 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 05:46:19,487 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 05:46:19,687 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 05:46:19,688 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:19,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:19,689 INFO L85 PathProgramCache]: Analyzing trace with hash -405532008, now seen corresponding path program 1 times [2023-12-25 05:46:19,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:19,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166984508] [2023-12-25 05:46:19,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:19,690 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 05:46:19,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:19,691 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 05:46:19,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:46:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:19,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:19,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:19,943 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 05:46:19,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:19,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:19,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166984508] [2023-12-25 05:46:19,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166984508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:19,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:19,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:19,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654019859] [2023-12-25 05:46:19,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:19,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:19,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:19,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:19,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:19,945 INFO L87 Difference]: Start difference. First operand 15543 states and 26694 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:20,990 INFO L93 Difference]: Finished difference Result 41073 states and 70875 transitions. [2023-12-25 05:46:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:20,991 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, (16), 2 states have call predecessors, (16), 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 05:46:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:21,129 INFO L225 Difference]: With dead ends: 41073 [2023-12-25 05:46:21,129 INFO L226 Difference]: Without dead ends: 27663 [2023-12-25 05:46:21,181 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 05:46:21,182 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 86 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:21,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 851 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:21,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27663 states. [2023-12-25 05:46:22,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27663 to 27658. [2023-12-25 05:46:22,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27658 states, 22825 states have (on average 1.6288718510405258) internal successors, (37179), 22831 states have internal predecessors, (37179), 4810 states have call successors, (4810), 19 states have call predecessors, (4810), 22 states have return successors, (5421), 4807 states have call predecessors, (5421), 4807 states have call successors, (5421) [2023-12-25 05:46:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27658 states to 27658 states and 47410 transitions. [2023-12-25 05:46:22,881 INFO L78 Accepts]: Start accepts. Automaton has 27658 states and 47410 transitions. Word has length 122 [2023-12-25 05:46:22,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:22,881 INFO L495 AbstractCegarLoop]: Abstraction has 27658 states and 47410 transitions. [2023-12-25 05:46:22,881 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:22,881 INFO L276 IsEmpty]: Start isEmpty. Operand 27658 states and 47410 transitions. [2023-12-25 05:46:22,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:46:22,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:22,914 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 05:46:22,923 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 05:46:23,121 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 05:46:23,121 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:23,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:23,122 INFO L85 PathProgramCache]: Analyzing trace with hash -598527849, now seen corresponding path program 1 times [2023-12-25 05:46:23,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:23,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084659446] [2023-12-25 05:46:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:23,123 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 05:46:23,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:23,125 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 05:46:23,161 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 05:46:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:23,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:23,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:23,405 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 05:46:23,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:23,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:23,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084659446] [2023-12-25 05:46:23,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084659446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:23,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:23,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:23,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560799707] [2023-12-25 05:46:23,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:23,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:23,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:23,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:23,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:23,408 INFO L87 Difference]: Start difference. First operand 27658 states and 47410 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:25,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:25,177 INFO L93 Difference]: Finished difference Result 75265 states and 129532 transitions. [2023-12-25 05:46:25,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:25,178 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, (16), 2 states have call predecessors, (16), 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 05:46:25,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:25,416 INFO L225 Difference]: With dead ends: 75265 [2023-12-25 05:46:25,417 INFO L226 Difference]: Without dead ends: 50487 [2023-12-25 05:46:25,493 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 05:46:25,494 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 84 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:25,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 853 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:46:25,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50487 states. [2023-12-25 05:46:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50487 to 50482. [2023-12-25 05:46:27,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50482 states, 41934 states have (on average 1.623813611866266) internal successors, (68093), 41940 states have internal predecessors, (68093), 8525 states have call successors, (8525), 19 states have call predecessors, (8525), 22 states have return successors, (9668), 8522 states have call predecessors, (9668), 8522 states have call successors, (9668) [2023-12-25 05:46:28,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50482 states to 50482 states and 86286 transitions. [2023-12-25 05:46:28,180 INFO L78 Accepts]: Start accepts. Automaton has 50482 states and 86286 transitions. Word has length 123 [2023-12-25 05:46:28,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:28,181 INFO L495 AbstractCegarLoop]: Abstraction has 50482 states and 86286 transitions. [2023-12-25 05:46:28,181 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 50482 states and 86286 transitions. [2023-12-25 05:46:28,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:46:28,221 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:28,222 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 05:46:28,231 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 (20)] Ended with exit code 0 [2023-12-25 05:46:28,429 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 05:46:28,429 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:28,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:28,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1203158824, now seen corresponding path program 1 times [2023-12-25 05:46:28,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:28,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334027432] [2023-12-25 05:46:28,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:28,430 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 05:46:28,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:28,431 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 05:46:28,470 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 05:46:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:28,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 05:46:28,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:28,773 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 05:46:28,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:28,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:28,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334027432] [2023-12-25 05:46:28,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334027432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:28,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:28,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:46:28,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19094452] [2023-12-25 05:46:28,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:28,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:46:28,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:28,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:46:28,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:28,775 INFO L87 Difference]: Start difference. First operand 50482 states and 86286 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:31,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:31,267 INFO L93 Difference]: Finished difference Result 94012 states and 161126 transitions. [2023-12-25 05:46:31,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:46:31,267 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2023-12-25 05:46:31,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:31,809 INFO L225 Difference]: With dead ends: 94012 [2023-12-25 05:46:31,809 INFO L226 Difference]: Without dead ends: 93867 [2023-12-25 05:46:31,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:46:31,864 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 82 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:31,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 851 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:46:31,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93867 states. [2023-12-25 05:46:35,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93867 to 93862. [2023-12-25 05:46:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93862 states, 78515 states have (on average 1.617321530917659) internal successors, (126984), 78521 states have internal predecessors, (126984), 15324 states have call successors, (15324), 19 states have call predecessors, (15324), 22 states have return successors, (17513), 15321 states have call predecessors, (17513), 15321 states have call successors, (17513) [2023-12-25 05:46:35,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93862 states to 93862 states and 159821 transitions. [2023-12-25 05:46:35,632 INFO L78 Accepts]: Start accepts. Automaton has 93862 states and 159821 transitions. Word has length 124 [2023-12-25 05:46:35,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:35,633 INFO L495 AbstractCegarLoop]: Abstraction has 93862 states and 159821 transitions. [2023-12-25 05:46:35,633 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:46:35,633 INFO L276 IsEmpty]: Start isEmpty. Operand 93862 states and 159821 transitions. [2023-12-25 05:46:35,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:46:35,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:35,682 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 05:46:35,691 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 05:46:35,888 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 05:46:35,888 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:35,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:35,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1802521014, now seen corresponding path program 1 times [2023-12-25 05:46:35,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:35,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601540769] [2023-12-25 05:46:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:35,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:46:35,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:35,890 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 05:46:35,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:46:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:36,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:46:36,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:36,259 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 05:46:36,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:46:36,493 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 05:46:36,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:36,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601540769] [2023-12-25 05:46:36,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601540769] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:46:36,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:46:36,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-25 05:46:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198883090] [2023-12-25 05:46:36,494 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:46:36,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:46:36,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:36,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:46:36,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:46:36,496 INFO L87 Difference]: Start difference. First operand 93862 states and 159821 transitions. Second operand has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 4 states have call successors, (29), 6 states have call predecessors, (29), 7 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-25 05:46:44,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:46:44,129 INFO L93 Difference]: Finished difference Result 187946 states and 324331 transitions. [2023-12-25 05:46:44,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:46:44,130 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 4 states have call successors, (29), 6 states have call predecessors, (29), 7 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 125 [2023-12-25 05:46:44,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:46:45,436 INFO L225 Difference]: With dead ends: 187946 [2023-12-25 05:46:45,437 INFO L226 Difference]: Without dead ends: 187806 [2023-12-25 05:46:45,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2023-12-25 05:46:45,520 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 1343 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 2948 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 2948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:46:45,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 1374 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 2948 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:46:45,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187806 states. [2023-12-25 05:46:53,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187806 to 187721. [2023-12-25 05:46:53,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187721 states, 157032 states have (on average 1.6173264048092109) internal successors, (253972), 157040 states have internal predecessors, (253972), 30644 states have call successors, (30644), 38 states have call predecessors, (30644), 44 states have return successors, (39386), 30642 states have call predecessors, (39386), 30640 states have call successors, (39386) [2023-12-25 05:46:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187721 states to 187721 states and 324002 transitions. [2023-12-25 05:46:54,574 INFO L78 Accepts]: Start accepts. Automaton has 187721 states and 324002 transitions. Word has length 125 [2023-12-25 05:46:54,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:46:54,574 INFO L495 AbstractCegarLoop]: Abstraction has 187721 states and 324002 transitions. [2023-12-25 05:46:54,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 4 states have call successors, (29), 6 states have call predecessors, (29), 7 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-25 05:46:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 187721 states and 324002 transitions. [2023-12-25 05:46:55,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:46:55,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:46:55,111 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] [2023-12-25 05:46:55,120 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 05:46:55,319 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 05:46:55,320 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:46:55,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:46:55,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1883674454, now seen corresponding path program 1 times [2023-12-25 05:46:55,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:46:55,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084156263] [2023-12-25 05:46:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:46:55,321 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 05:46:55,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:46:55,322 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 05:46:55,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:46:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:46:55,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:46:55,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:46:55,680 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 05:46:55,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:46:55,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:46:55,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084156263] [2023-12-25 05:46:55,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084156263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:46:55,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:46:55,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:46:55,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320746173] [2023-12-25 05:46:55,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:46:55,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:46:55,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:46:55,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:46:55,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:46:55,683 INFO L87 Difference]: Start difference. First operand 187721 states and 324002 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:47:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:01,401 INFO L93 Difference]: Finished difference Result 188154 states and 324643 transitions. [2023-12-25 05:47:01,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:47:01,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 126 [2023-12-25 05:47:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:02,367 INFO L225 Difference]: With dead ends: 188154 [2023-12-25 05:47:02,368 INFO L226 Difference]: Without dead ends: 187788 [2023-12-25 05:47:02,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:47:02,430 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 571 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:02,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1975 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:47:02,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187788 states. [2023-12-25 05:47:10,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187788 to 187783. [2023-12-25 05:47:10,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187783 states, 157080 states have (on average 1.6172459893048128) internal successors, (254037), 157087 states have internal predecessors, (254037), 30658 states have call successors, (30658), 40 states have call predecessors, (30658), 44 states have return successors, (39400), 30655 states have call predecessors, (39400), 30654 states have call successors, (39400) [2023-12-25 05:47:11,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187783 states to 187783 states and 324095 transitions. [2023-12-25 05:47:11,358 INFO L78 Accepts]: Start accepts. Automaton has 187783 states and 324095 transitions. Word has length 126 [2023-12-25 05:47:11,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:11,359 INFO L495 AbstractCegarLoop]: Abstraction has 187783 states and 324095 transitions. [2023-12-25 05:47:11,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:47:11,359 INFO L276 IsEmpty]: Start isEmpty. Operand 187783 states and 324095 transitions. [2023-12-25 05:47:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:47:11,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:11,851 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, 1] [2023-12-25 05:47:11,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:47:12,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:12,058 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:12,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:12,059 INFO L85 PathProgramCache]: Analyzing trace with hash -95003205, now seen corresponding path program 1 times [2023-12-25 05:47:12,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:12,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198922912] [2023-12-25 05:47:12,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:12,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:12,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:12,061 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:47:12,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:47:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:12,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:47:12,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:12,311 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 05:47:12,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:12,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:12,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198922912] [2023-12-25 05:47:12,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198922912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:12,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:12,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:47:12,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457993883] [2023-12-25 05:47:12,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:12,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:47:12,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:12,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:47:12,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:47:12,313 INFO L87 Difference]: Start difference. First operand 187783 states and 324095 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:47:18,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:47:18,416 INFO L93 Difference]: Finished difference Result 279205 states and 481946 transitions. [2023-12-25 05:47:18,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:47:18,417 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2023-12-25 05:47:18,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:47:19,329 INFO L225 Difference]: With dead ends: 279205 [2023-12-25 05:47:19,329 INFO L226 Difference]: Without dead ends: 185308 [2023-12-25 05:47:19,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:47:19,510 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 10 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:47:19,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1657 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:47:19,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185308 states. [2023-12-25 05:47:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185308 to 185302. [2023-12-25 05:47:27,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185302 states, 155051 states have (on average 1.6180676035626986) internal successors, (250883), 154945 states have internal predecessors, (250883), 30209 states have call successors, (30209), 40 states have call predecessors, (30209), 41 states have return successors, (37743), 30316 states have call predecessors, (37743), 30205 states have call successors, (37743) [2023-12-25 05:47:28,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185302 states to 185302 states and 318835 transitions. [2023-12-25 05:47:28,795 INFO L78 Accepts]: Start accepts. Automaton has 185302 states and 318835 transitions. Word has length 126 [2023-12-25 05:47:28,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:47:28,796 INFO L495 AbstractCegarLoop]: Abstraction has 185302 states and 318835 transitions. [2023-12-25 05:47:28,796 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:47:28,796 INFO L276 IsEmpty]: Start isEmpty. Operand 185302 states and 318835 transitions. [2023-12-25 05:47:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 05:47:28,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:47:28,892 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 05:47:28,899 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 05:47:29,094 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 05:47:29,094 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:47:29,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:47:29,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1494201004, now seen corresponding path program 1 times [2023-12-25 05:47:29,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:47:29,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542841700] [2023-12-25 05:47:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:47:29,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:47:29,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:47:29,097 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 05:47:29,104 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 (25)] Waiting until timeout for monitored process [2023-12-25 05:47:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:47:29,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 05:47:29,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:47:29,534 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:47:29,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:47:29,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:47:29,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542841700] [2023-12-25 05:47:29,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542841700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:47:29,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:47:29,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-25 05:47:29,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077026633] [2023-12-25 05:47:29,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:47:29,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 05:47:29,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:47:29,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 05:47:29,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:47:29,537 INFO L87 Difference]: Start difference. First operand 185302 states and 318835 transitions. Second operand has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 6 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13)