/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/elevator_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:34:57,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:34:58,073 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 05:34:58,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:34:58,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:34:58,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:34:58,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:34:58,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:34:58,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:34:58,105 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:34:58,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:34:58,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:34:58,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:34:58,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:34:58,107 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:34:58,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:34:58,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:34:58,107 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:34:58,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:34:58,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:34:58,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:34:58,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:34:58,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:34:58,108 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:34:58,108 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:34:58,109 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:34:58,109 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:34:58,109 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:34:58,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:34:58,109 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:34:58,110 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:34:58,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:34:58,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:34:58,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:34:58,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:34:58,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:34:58,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:34:58,111 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:34:58,111 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:34:58,111 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:34:58,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:34:58,112 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:34:58,112 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:34:58,112 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:34:58,112 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:34:58,112 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:34:58,112 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:34:58,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:34:58,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:34:58,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:34:58,311 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:34:58,311 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:34:58,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product29.cil.c [2023-12-25 05:34:59,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:34:59,653 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:34:59,654 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product29.cil.c [2023-12-25 05:34:59,679 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b27041e9/be37a40f0b9645b49d03bf92ebe763ef/FLAG226738253 [2023-12-25 05:34:59,694 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b27041e9/be37a40f0b9645b49d03bf92ebe763ef [2023-12-25 05:34:59,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:34:59,698 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:34:59,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:34:59,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:34:59,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:34:59,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:34:59" (1/1) ... [2023-12-25 05:34:59,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5521ee02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:59, skipping insertion in model container [2023-12-25 05:34:59,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:34:59" (1/1) ... [2023-12-25 05:34:59,756 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:35:00,018 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/elevator_spec3_product29.cil.c[40506,40519] [2023-12-25 05:35:00,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:35:00,153 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:35:00,169 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:35:00,224 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/elevator_spec3_product29.cil.c[40506,40519] [2023-12-25 05:35:00,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:35:00,259 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:35:00,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2023-12-25 05:35:00,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [716] [2023-12-25 05:35:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [754] [2023-12-25 05:35:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1120] [2023-12-25 05:35:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1220] [2023-12-25 05:35:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1340] [2023-12-25 05:35:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [1358] [2023-12-25 05:35:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1548] [2023-12-25 05:35:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1897] [2023-12-25 05:35:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1906] [2023-12-25 05:35:00,316 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/elevator_spec3_product29.cil.c[40506,40519] [2023-12-25 05:35:00,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:35:00,355 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:35:00,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00 WrapperNode [2023-12-25 05:35:00,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:35:00,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:35:00,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:35:00,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:35:00,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,430 INFO L138 Inliner]: procedures = 93, calls = 347, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 869 [2023-12-25 05:35:00,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:35:00,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:35:00,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:35:00,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:35:00,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,507 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:35:00,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:35:00,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:35:00,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:35:00,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:35:00,592 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (1/1) ... [2023-12-25 05:35:00,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:35:00,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:35:00,634 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 05:35:00,698 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 05:35:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:35:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:35:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:35:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:35:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:35:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:35:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:35:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:35:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:35:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:35:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:35:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:35:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:35:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:35:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:35:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:35:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:35:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:35:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:35:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:35:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:35:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:35:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:35:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:35:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:35:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:35:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:35:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:35:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:35:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:35:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:35:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:35:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:35:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:35:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:35:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:35:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:35:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-25 05:35:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-25 05:35:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:35:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:35:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:35:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:35:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-25 05:35:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-25 05:35:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:35:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:35:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:35:00,722 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:35:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:35:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:35:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:35:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:35:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:35:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:35:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:35:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:35:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:35:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:35:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:35:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:35:00,724 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:35:00,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:35:00,930 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:35:00,932 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:35:01,806 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:35:01,903 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:35:01,903 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:35:01,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:35:01 BoogieIcfgContainer [2023-12-25 05:35:01,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:35:01,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:35:01,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:35:01,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:35:01,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:34:59" (1/3) ... [2023-12-25 05:35:01,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7551dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:35:01, skipping insertion in model container [2023-12-25 05:35:01,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:35:00" (2/3) ... [2023-12-25 05:35:01,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7551dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:35:01, skipping insertion in model container [2023-12-25 05:35:01,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:35:01" (3/3) ... [2023-12-25 05:35:01,911 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product29.cil.c [2023-12-25 05:35:01,923 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:35:01,923 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:35:01,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:35:01,987 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;@afc2273, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:35:01,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:35:01,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 576 states, 442 states have (on average 1.7104072398190044) internal successors, (756), 460 states have internal predecessors, (756), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-25 05:35:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-25 05:35:02,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:02,019 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:02,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:02,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:02,023 INFO L85 PathProgramCache]: Analyzing trace with hash 489959255, now seen corresponding path program 1 times [2023-12-25 05:35:02,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:02,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317312290] [2023-12-25 05:35:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:02,033 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 05:35:02,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:02,035 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 05:35:02,042 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 05:35:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:02,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:02,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:02,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:02,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:02,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317312290] [2023-12-25 05:35:02,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317312290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:02,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:02,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:02,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718677077] [2023-12-25 05:35:02,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:02,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:02,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:02,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:02,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:02,551 INFO L87 Difference]: Start difference. First operand has 576 states, 442 states have (on average 1.7104072398190044) internal successors, (756), 460 states have internal predecessors, (756), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:02,895 INFO L93 Difference]: Finished difference Result 1155 states and 1954 transitions. [2023-12-25 05:35:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:02,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 89 [2023-12-25 05:35:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:02,907 INFO L225 Difference]: With dead ends: 1155 [2023-12-25 05:35:02,908 INFO L226 Difference]: Without dead ends: 584 [2023-12-25 05:35:02,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:02,919 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 115 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5510 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:02,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5510 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:02,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-25 05:35:02,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 582. [2023-12-25 05:35:02,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 448 states have (on average 1.6964285714285714) internal successors, (760), 466 states have internal predecessors, (760), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2023-12-25 05:35:02,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 973 transitions. [2023-12-25 05:35:02,980 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 973 transitions. Word has length 89 [2023-12-25 05:35:02,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:02,980 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 973 transitions. [2023-12-25 05:35:02,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:02,980 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 973 transitions. [2023-12-25 05:35:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 05:35:02,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:02,986 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:02,998 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 05:35:03,198 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 05:35:03,198 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:03,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:03,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2022771519, now seen corresponding path program 1 times [2023-12-25 05:35:03,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:03,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611430619] [2023-12-25 05:35:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:03,200 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 05:35:03,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:03,201 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 05:35:03,203 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 05:35:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:03,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:03,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:03,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:03,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:03,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611430619] [2023-12-25 05:35:03,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611430619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:03,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:03,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:03,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432431266] [2023-12-25 05:35:03,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:03,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:03,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:03,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:03,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:03,548 INFO L87 Difference]: Start difference. First operand 582 states and 973 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:03,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:03,731 INFO L93 Difference]: Finished difference Result 1164 states and 1954 transitions. [2023-12-25 05:35:03,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:03,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 90 [2023-12-25 05:35:03,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:03,735 INFO L225 Difference]: With dead ends: 1164 [2023-12-25 05:35:03,735 INFO L226 Difference]: Without dead ends: 592 [2023-12-25 05:35:03,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:03,738 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 102 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 5514 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:03,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 5514 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:03,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-12-25 05:35:03,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 582. [2023-12-25 05:35:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 448 states have (on average 1.6964285714285714) internal successors, (760), 466 states have internal predecessors, (760), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2023-12-25 05:35:03,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 973 transitions. [2023-12-25 05:35:03,763 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 973 transitions. Word has length 90 [2023-12-25 05:35:03,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:03,763 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 973 transitions. [2023-12-25 05:35:03,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:03,764 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 973 transitions. [2023-12-25 05:35:03,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 05:35:03,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:03,766 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:03,788 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 05:35:03,975 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 05:35:03,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:03,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:03,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1321647835, now seen corresponding path program 1 times [2023-12-25 05:35:03,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:03,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477628502] [2023-12-25 05:35:03,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:03,977 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 05:35:03,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:03,978 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 05:35:03,980 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 05:35:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:04,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:04,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:04,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:04,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:04,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477628502] [2023-12-25 05:35:04,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477628502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:04,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:04,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:04,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023542065] [2023-12-25 05:35:04,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:04,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:04,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:04,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:04,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:04,306 INFO L87 Difference]: Start difference. First operand 582 states and 973 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:35:04,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:04,382 INFO L93 Difference]: Finished difference Result 1152 states and 1933 transitions. [2023-12-25 05:35:04,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:35:04,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2023-12-25 05:35:04,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:04,385 INFO L225 Difference]: With dead ends: 1152 [2023-12-25 05:35:04,385 INFO L226 Difference]: Without dead ends: 553 [2023-12-25 05:35:04,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:04,389 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 22 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:04,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2780 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:35:04,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-12-25 05:35:04,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2023-12-25 05:35:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 422 states have (on average 1.680094786729858) internal successors, (709), 438 states have internal predecessors, (709), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:35:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 918 transitions. [2023-12-25 05:35:04,431 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 918 transitions. Word has length 90 [2023-12-25 05:35:04,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:04,432 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 918 transitions. [2023-12-25 05:35:04,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:35:04,432 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 918 transitions. [2023-12-25 05:35:04,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-25 05:35:04,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:04,434 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:04,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:04,643 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 05:35:04,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:04,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1409616571, now seen corresponding path program 1 times [2023-12-25 05:35:04,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:04,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59061341] [2023-12-25 05:35:04,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:04,645 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 05:35:04,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:04,665 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 05:35:04,667 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 05:35:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:04,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:04,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:05,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:05,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:05,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59061341] [2023-12-25 05:35:05,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59061341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:05,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:05,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:05,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767031829] [2023-12-25 05:35:05,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:05,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:05,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:05,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:05,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:05,015 INFO L87 Difference]: Start difference. First operand 553 states and 918 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:05,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:05,148 INFO L93 Difference]: Finished difference Result 1104 states and 1840 transitions. [2023-12-25 05:35:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2023-12-25 05:35:05,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:05,151 INFO L225 Difference]: With dead ends: 1104 [2023-12-25 05:35:05,151 INFO L226 Difference]: Without dead ends: 547 [2023-12-25 05:35:05,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:05,155 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 87 mSDsluCounter, 4398 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 5291 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:05,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 5291 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:05,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-12-25 05:35:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2023-12-25 05:35:05,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 416 states have (on average 1.6730769230769231) internal successors, (696), 432 states have internal predecessors, (696), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:35:05,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 905 transitions. [2023-12-25 05:35:05,170 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 905 transitions. Word has length 91 [2023-12-25 05:35:05,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:05,171 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 905 transitions. [2023-12-25 05:35:05,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:05,171 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 905 transitions. [2023-12-25 05:35:05,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:35:05,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:05,174 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:05,183 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 05:35:05,383 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 05:35:05,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:05,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash 162128421, now seen corresponding path program 1 times [2023-12-25 05:35:05,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:05,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006269953] [2023-12-25 05:35:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:05,384 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 05:35:05,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:05,387 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 05:35:05,416 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 05:35:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:05,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:05,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:05,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:05,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:05,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:05,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006269953] [2023-12-25 05:35:05,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006269953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:05,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:05,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:05,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877552335] [2023-12-25 05:35:05,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:05,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:05,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:05,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:05,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:05,780 INFO L87 Difference]: Start difference. First operand 547 states and 905 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:05,933 INFO L93 Difference]: Finished difference Result 1092 states and 1814 transitions. [2023-12-25 05:35:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:05,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 92 [2023-12-25 05:35:05,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:05,936 INFO L225 Difference]: With dead ends: 1092 [2023-12-25 05:35:05,936 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:35:05,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:05,939 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 73 mSDsluCounter, 4350 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 5231 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:05,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 5231 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:05,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:35:05,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:35:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6658536585365853) internal successors, (683), 426 states have internal predecessors, (683), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:35:05,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 892 transitions. [2023-12-25 05:35:05,955 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 892 transitions. Word has length 92 [2023-12-25 05:35:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:05,955 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 892 transitions. [2023-12-25 05:35:05,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:05,956 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 892 transitions. [2023-12-25 05:35:05,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:35:05,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:05,958 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:05,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:06,166 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 05:35:06,167 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:06,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:06,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1784850970, now seen corresponding path program 1 times [2023-12-25 05:35:06,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:06,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959328788] [2023-12-25 05:35:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:06,168 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 05:35:06,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:06,172 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 05:35:06,206 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 05:35:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:06,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:06,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:06,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:06,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:06,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959328788] [2023-12-25 05:35:06,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959328788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:06,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:06,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:35:06,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316102121] [2023-12-25 05:35:06,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:06,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:35:06,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:06,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:35:06,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:06,541 INFO L87 Difference]: Start difference. First operand 541 states and 892 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:06,671 INFO L93 Difference]: Finished difference Result 1080 states and 1788 transitions. [2023-12-25 05:35:06,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:06,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 92 [2023-12-25 05:35:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:06,675 INFO L225 Difference]: With dead ends: 1080 [2023-12-25 05:35:06,675 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:35:06,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:06,678 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 48 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 5183 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:06,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 5183 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:06,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:35:06,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:35:06,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6634146341463414) internal successors, (682), 426 states have internal predecessors, (682), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:35:06,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 891 transitions. [2023-12-25 05:35:06,693 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 891 transitions. Word has length 92 [2023-12-25 05:35:06,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:06,693 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 891 transitions. [2023-12-25 05:35:06,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:06,694 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 891 transitions. [2023-12-25 05:35:06,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 05:35:06,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:06,696 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:06,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:06,904 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 05:35:06,905 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:06,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:06,905 INFO L85 PathProgramCache]: Analyzing trace with hash -132635105, now seen corresponding path program 1 times [2023-12-25 05:35:06,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:06,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182103992] [2023-12-25 05:35:06,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:06,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:06,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:06,910 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 05:35:06,914 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 05:35:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:07,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:07,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:07,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:07,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:07,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182103992] [2023-12-25 05:35:07,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182103992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:07,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:07,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:07,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914546072] [2023-12-25 05:35:07,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:07,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:07,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:07,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:07,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:07,328 INFO L87 Difference]: Start difference. First operand 541 states and 891 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:07,571 INFO L93 Difference]: Finished difference Result 1074 states and 1775 transitions. [2023-12-25 05:35:07,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:07,571 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 93 [2023-12-25 05:35:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:07,574 INFO L225 Difference]: With dead ends: 1074 [2023-12-25 05:35:07,574 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:35:07,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:07,578 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 35 mSDsluCounter, 5131 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:07,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5990 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:35:07,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:35:07,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:35:07,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6609756097560975) internal successors, (681), 426 states have internal predecessors, (681), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:35:07,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 890 transitions. [2023-12-25 05:35:07,596 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 890 transitions. Word has length 93 [2023-12-25 05:35:07,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:07,596 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 890 transitions. [2023-12-25 05:35:07,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:07,597 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 890 transitions. [2023-12-25 05:35:07,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 05:35:07,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:07,599 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:07,611 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 05:35:07,809 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 05:35:07,809 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:07,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:07,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1123870139, now seen corresponding path program 1 times [2023-12-25 05:35:07,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:07,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274813132] [2023-12-25 05:35:07,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:07,813 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 05:35:07,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:07,814 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 05:35:07,849 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 05:35:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:08,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:08,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:08,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:08,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:08,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:08,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274813132] [2023-12-25 05:35:08,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274813132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:08,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:08,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:08,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763607852] [2023-12-25 05:35:08,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:08,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:08,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:08,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:08,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:08,168 INFO L87 Difference]: Start difference. First operand 541 states and 890 transitions. Second operand has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:08,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:08,337 INFO L93 Difference]: Finished difference Result 1074 states and 1773 transitions. [2023-12-25 05:35:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:08,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 94 [2023-12-25 05:35:08,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:08,340 INFO L225 Difference]: With dead ends: 1074 [2023-12-25 05:35:08,340 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:35:08,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:08,343 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 32 mSDsluCounter, 5131 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:08,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 5990 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:08,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:35:08,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:35:08,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6585365853658536) internal successors, (680), 426 states have internal predecessors, (680), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:35:08,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 889 transitions. [2023-12-25 05:35:08,357 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 889 transitions. Word has length 94 [2023-12-25 05:35:08,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:08,358 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 889 transitions. [2023-12-25 05:35:08,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 889 transitions. [2023-12-25 05:35:08,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 05:35:08,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:08,360 INFO L195 NwaCegarLoop]: trace histogram [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 05:35:08,371 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 05:35:08,569 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 05:35:08,569 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:08,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:08,570 INFO L85 PathProgramCache]: Analyzing trace with hash -532802140, now seen corresponding path program 1 times [2023-12-25 05:35:08,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:08,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859267865] [2023-12-25 05:35:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:08,570 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 05:35:08,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:08,581 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 05:35:08,615 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 05:35:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:08,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:08,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:08,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:08,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:08,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859267865] [2023-12-25 05:35:08,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859267865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:08,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:08,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:08,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922232488] [2023-12-25 05:35:08,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:08,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:08,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:08,972 INFO L87 Difference]: Start difference. First operand 541 states and 889 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:09,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:09,140 INFO L93 Difference]: Finished difference Result 1074 states and 1771 transitions. [2023-12-25 05:35:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:09,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2023-12-25 05:35:09,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:09,143 INFO L225 Difference]: With dead ends: 1074 [2023-12-25 05:35:09,143 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:35:09,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:09,146 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 29 mSDsluCounter, 5131 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:09,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 5990 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:09,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:35:09,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:35:09,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6560975609756097) internal successors, (679), 426 states have internal predecessors, (679), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:35:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 888 transitions. [2023-12-25 05:35:09,159 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 888 transitions. Word has length 95 [2023-12-25 05:35:09,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:09,159 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 888 transitions. [2023-12-25 05:35:09,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:09,159 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 888 transitions. [2023-12-25 05:35:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:35:09,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:09,161 INFO L195 NwaCegarLoop]: trace histogram [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 05:35:09,173 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 05:35:09,373 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 05:35:09,374 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:09,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:09,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1865019626, now seen corresponding path program 1 times [2023-12-25 05:35:09,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:09,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126873486] [2023-12-25 05:35:09,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:09,375 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 05:35:09,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:09,376 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 05:35:09,412 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 05:35:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:09,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:09,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:09,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:09,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:09,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126873486] [2023-12-25 05:35:09,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126873486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:09,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:09,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:09,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172060112] [2023-12-25 05:35:09,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:09,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:09,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:09,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:09,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:09,709 INFO L87 Difference]: Start difference. First operand 541 states and 888 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:09,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:09,887 INFO L93 Difference]: Finished difference Result 1074 states and 1769 transitions. [2023-12-25 05:35:09,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:09,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 96 [2023-12-25 05:35:09,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:09,890 INFO L225 Difference]: With dead ends: 1074 [2023-12-25 05:35:09,890 INFO L226 Difference]: Without dead ends: 541 [2023-12-25 05:35:09,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:09,892 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 26 mSDsluCounter, 5131 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:09,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5990 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:09,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-25 05:35:09,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-25 05:35:09,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6536585365853658) internal successors, (678), 426 states have internal predecessors, (678), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-25 05:35:09,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 887 transitions. [2023-12-25 05:35:09,905 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 887 transitions. Word has length 96 [2023-12-25 05:35:09,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:09,905 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 887 transitions. [2023-12-25 05:35:09,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:09,905 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 887 transitions. [2023-12-25 05:35:09,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:35:09,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:09,907 INFO L195 NwaCegarLoop]: trace histogram [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 05:35:09,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:10,117 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 05:35:10,117 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:10,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:10,118 INFO L85 PathProgramCache]: Analyzing trace with hash 142666025, now seen corresponding path program 1 times [2023-12-25 05:35:10,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:10,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625904835] [2023-12-25 05:35:10,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:10,118 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 05:35:10,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:10,119 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 05:35:10,122 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 05:35:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:10,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:10,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:10,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:10,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:10,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625904835] [2023-12-25 05:35:10,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625904835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:10,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:10,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:10,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478203439] [2023-12-25 05:35:10,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:10,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:10,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:10,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:10,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:10,529 INFO L87 Difference]: Start difference. First operand 541 states and 887 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:35:11,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:11,196 INFO L93 Difference]: Finished difference Result 1543 states and 2554 transitions. [2023-12-25 05:35:11,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:11,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 97 [2023-12-25 05:35:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:11,201 INFO L225 Difference]: With dead ends: 1543 [2023-12-25 05:35:11,201 INFO L226 Difference]: Without dead ends: 1014 [2023-12-25 05:35:11,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:11,204 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 729 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:11,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 4011 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:11,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2023-12-25 05:35:11,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1007. [2023-12-25 05:35:11,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 767 states have (on average 1.6153846153846154) internal successors, (1239), 797 states have internal predecessors, (1239), 194 states have call successors, (194), 49 states have call predecessors, (194), 45 states have return successors, (195), 185 states have call predecessors, (195), 190 states have call successors, (195) [2023-12-25 05:35:11,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1628 transitions. [2023-12-25 05:35:11,235 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1628 transitions. Word has length 97 [2023-12-25 05:35:11,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:11,235 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1628 transitions. [2023-12-25 05:35:11,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:35:11,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1628 transitions. [2023-12-25 05:35:11,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:35:11,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:11,238 INFO L195 NwaCegarLoop]: trace histogram [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 05:35:11,260 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 05:35:11,447 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 05:35:11,448 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:11,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:11,449 INFO L85 PathProgramCache]: Analyzing trace with hash 650672974, now seen corresponding path program 1 times [2023-12-25 05:35:11,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:11,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258407139] [2023-12-25 05:35:11,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:11,449 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 05:35:11,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:11,450 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 05:35:11,451 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 05:35:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:11,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:11,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:11,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:11,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:11,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258407139] [2023-12-25 05:35:11,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258407139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:11,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:11,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:11,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121641525] [2023-12-25 05:35:11,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:11,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:11,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:11,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:11,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:11,832 INFO L87 Difference]: Start difference. First operand 1007 states and 1628 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:35:12,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:12,379 INFO L93 Difference]: Finished difference Result 2503 states and 4115 transitions. [2023-12-25 05:35:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:12,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2023-12-25 05:35:12,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:12,386 INFO L225 Difference]: With dead ends: 2503 [2023-12-25 05:35:12,386 INFO L226 Difference]: Without dead ends: 1508 [2023-12-25 05:35:12,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:12,391 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 820 mSDsluCounter, 3664 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 4677 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:12,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 4677 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:12,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2023-12-25 05:35:12,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1499. [2023-12-25 05:35:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1145 states have (on average 1.6323144104803493) internal successors, (1869), 1188 states have internal predecessors, (1869), 285 states have call successors, (285), 72 states have call predecessors, (285), 68 states have return successors, (304), 276 states have call predecessors, (304), 280 states have call successors, (304) [2023-12-25 05:35:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2458 transitions. [2023-12-25 05:35:12,435 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2458 transitions. Word has length 102 [2023-12-25 05:35:12,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:12,435 INFO L495 AbstractCegarLoop]: Abstraction has 1499 states and 2458 transitions. [2023-12-25 05:35:12,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:35:12,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2458 transitions. [2023-12-25 05:35:12,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:35:12,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:12,437 INFO L195 NwaCegarLoop]: trace histogram [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 05:35:12,450 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 05:35:12,645 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 05:35:12,646 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:12,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:12,646 INFO L85 PathProgramCache]: Analyzing trace with hash -814000377, now seen corresponding path program 1 times [2023-12-25 05:35:12,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:12,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064328808] [2023-12-25 05:35:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:12,647 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 05:35:12,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:12,648 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 05:35:12,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:35:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:13,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:13,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:13,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:13,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:13,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:13,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064328808] [2023-12-25 05:35:13,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064328808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:13,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:13,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:13,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198729001] [2023-12-25 05:35:13,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:13,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:13,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:13,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:13,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:13,104 INFO L87 Difference]: Start difference. First operand 1499 states and 2458 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:35:13,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:13,674 INFO L93 Difference]: Finished difference Result 4493 states and 7551 transitions. [2023-12-25 05:35:13,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:13,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2023-12-25 05:35:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:13,689 INFO L225 Difference]: With dead ends: 4493 [2023-12-25 05:35:13,689 INFO L226 Difference]: Without dead ends: 3006 [2023-12-25 05:35:13,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:13,698 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 893 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 4564 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:13,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 4564 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:13,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2023-12-25 05:35:13,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 2932. [2023-12-25 05:35:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2244 states have (on average 1.624331550802139) internal successors, (3645), 2328 states have internal predecessors, (3645), 550 states have call successors, (550), 141 states have call predecessors, (550), 137 states have return successors, (699), 538 states have call predecessors, (699), 542 states have call successors, (699) [2023-12-25 05:35:13,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 4894 transitions. [2023-12-25 05:35:13,848 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 4894 transitions. Word has length 104 [2023-12-25 05:35:13,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:13,849 INFO L495 AbstractCegarLoop]: Abstraction has 2932 states and 4894 transitions. [2023-12-25 05:35:13,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:35:13,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 4894 transitions. [2023-12-25 05:35:13,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:35:13,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:13,851 INFO L195 NwaCegarLoop]: trace histogram [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 05:35:13,879 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 05:35:14,060 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 05:35:14,060 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:14,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:14,060 INFO L85 PathProgramCache]: Analyzing trace with hash 990485548, now seen corresponding path program 1 times [2023-12-25 05:35:14,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:14,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578273482] [2023-12-25 05:35:14,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:14,061 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 05:35:14,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:14,080 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 05:35:14,081 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 05:35:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:14,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:14,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:14,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:14,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:14,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578273482] [2023-12-25 05:35:14,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578273482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:14,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:14,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:14,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544783911] [2023-12-25 05:35:14,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:14,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:14,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:14,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:14,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:14,417 INFO L87 Difference]: Start difference. First operand 2932 states and 4894 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:35:14,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:14,608 INFO L93 Difference]: Finished difference Result 5870 states and 9928 transitions. [2023-12-25 05:35:14,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:14,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2023-12-25 05:35:14,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:14,621 INFO L225 Difference]: With dead ends: 5870 [2023-12-25 05:35:14,621 INFO L226 Difference]: Without dead ends: 2950 [2023-12-25 05:35:14,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:14,638 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 19 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:14,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2527 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:14,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2023-12-25 05:35:14,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 2944. [2023-12-25 05:35:14,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2253 states have (on average 1.6205059920106524) internal successors, (3651), 2337 states have internal predecessors, (3651), 550 states have call successors, (550), 147 states have call predecessors, (550), 140 states have return successors, (686), 535 states have call predecessors, (686), 542 states have call successors, (686) [2023-12-25 05:35:14,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 4887 transitions. [2023-12-25 05:35:14,735 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 4887 transitions. Word has length 106 [2023-12-25 05:35:14,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:14,736 INFO L495 AbstractCegarLoop]: Abstraction has 2944 states and 4887 transitions. [2023-12-25 05:35:14,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:35:14,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 4887 transitions. [2023-12-25 05:35:14,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:35:14,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:14,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:14,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:14,946 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 05:35:14,946 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:14,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:14,947 INFO L85 PathProgramCache]: Analyzing trace with hash -234575008, now seen corresponding path program 1 times [2023-12-25 05:35:14,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:14,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70132496] [2023-12-25 05:35:14,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:14,948 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 05:35:14,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:14,953 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 05:35:14,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:35:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:15,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:15,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:15,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:15,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:15,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70132496] [2023-12-25 05:35:15,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [70132496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:15,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:15,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:15,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534703901] [2023-12-25 05:35:15,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:15,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:15,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:15,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:15,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:15,363 INFO L87 Difference]: Start difference. First operand 2944 states and 4887 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:16,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:16,164 INFO L93 Difference]: Finished difference Result 8893 states and 15232 transitions. [2023-12-25 05:35:16,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:16,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 114 [2023-12-25 05:35:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:16,196 INFO L225 Difference]: With dead ends: 8893 [2023-12-25 05:35:16,197 INFO L226 Difference]: Without dead ends: 5961 [2023-12-25 05:35:16,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:16,217 INFO L413 NwaCegarLoop]: 973 mSDtfsCounter, 878 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 4506 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:16,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 4506 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:16,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2023-12-25 05:35:16,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 5849. [2023-12-25 05:35:16,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5849 states, 4481 states have (on average 1.614371792010712) internal successors, (7234), 4647 states have internal predecessors, (7234), 1083 states have call successors, (1083), 291 states have call predecessors, (1083), 284 states have return successors, (1619), 1062 states have call predecessors, (1619), 1069 states have call successors, (1619) [2023-12-25 05:35:16,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5849 states to 5849 states and 9936 transitions. [2023-12-25 05:35:16,459 INFO L78 Accepts]: Start accepts. Automaton has 5849 states and 9936 transitions. Word has length 114 [2023-12-25 05:35:16,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:16,459 INFO L495 AbstractCegarLoop]: Abstraction has 5849 states and 9936 transitions. [2023-12-25 05:35:16,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:35:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5849 states and 9936 transitions. [2023-12-25 05:35:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 05:35:16,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:16,462 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:16,486 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 05:35:16,670 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 05:35:16,671 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:16,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:16,671 INFO L85 PathProgramCache]: Analyzing trace with hash -798412976, now seen corresponding path program 1 times [2023-12-25 05:35:16,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:16,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882250151] [2023-12-25 05:35:16,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:16,672 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 05:35:16,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:16,673 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 05:35:16,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:35:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:16,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:16,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-25 05:35:16,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:16,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:16,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882250151] [2023-12-25 05:35:16,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882250151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:16,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:16,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:16,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409779968] [2023-12-25 05:35:16,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:16,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:16,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:16,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:16,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:16,997 INFO L87 Difference]: Start difference. First operand 5849 states and 9936 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:35:17,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:17,331 INFO L93 Difference]: Finished difference Result 11758 states and 20317 transitions. [2023-12-25 05:35:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:17,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 117 [2023-12-25 05:35:17,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:17,363 INFO L225 Difference]: With dead ends: 11758 [2023-12-25 05:35:17,363 INFO L226 Difference]: Without dead ends: 5921 [2023-12-25 05:35:17,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:17,398 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 21 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:17,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2525 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:17,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2023-12-25 05:35:17,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5909. [2023-12-25 05:35:17,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5909 states, 4535 states have (on average 1.6083792723263506) internal successors, (7294), 4689 states have internal predecessors, (7294), 1083 states have call successors, (1083), 315 states have call predecessors, (1083), 290 states have return successors, (1601), 1056 states have call predecessors, (1601), 1069 states have call successors, (1601) [2023-12-25 05:35:17,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5909 states to 5909 states and 9978 transitions. [2023-12-25 05:35:17,662 INFO L78 Accepts]: Start accepts. Automaton has 5909 states and 9978 transitions. Word has length 117 [2023-12-25 05:35:17,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:17,662 INFO L495 AbstractCegarLoop]: Abstraction has 5909 states and 9978 transitions. [2023-12-25 05:35:17,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:35:17,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5909 states and 9978 transitions. [2023-12-25 05:35:17,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:35:17,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:17,665 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:17,683 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 05:35:17,873 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 05:35:17,873 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:17,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash -464678595, now seen corresponding path program 1 times [2023-12-25 05:35:17,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:17,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506041599] [2023-12-25 05:35:17,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:17,874 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 05:35:17,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:17,875 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 05:35:17,878 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 05:35:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:18,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:18,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 05:35:18,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:18,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:18,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506041599] [2023-12-25 05:35:18,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506041599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:18,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:18,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:18,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913497204] [2023-12-25 05:35:18,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:18,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:18,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:18,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:18,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:18,318 INFO L87 Difference]: Start difference. First operand 5909 states and 9978 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:35:19,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:19,351 INFO L93 Difference]: Finished difference Result 17871 states and 31534 transitions. [2023-12-25 05:35:19,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:19,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 126 [2023-12-25 05:35:19,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:19,415 INFO L225 Difference]: With dead ends: 17871 [2023-12-25 05:35:19,415 INFO L226 Difference]: Without dead ends: 11974 [2023-12-25 05:35:19,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:19,534 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 855 mSDsluCounter, 3551 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:19,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 4530 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11974 states. [2023-12-25 05:35:19,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11974 to 11818. [2023-12-25 05:35:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11818 states, 9075 states have (on average 1.6031955922865013) internal successors, (14549), 9381 states have internal predecessors, (14549), 2152 states have call successors, (2152), 627 states have call predecessors, (2152), 590 states have return successors, (3928), 2113 states have call predecessors, (3928), 2126 states have call successors, (3928) [2023-12-25 05:35:20,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11818 states to 11818 states and 20629 transitions. [2023-12-25 05:35:20,021 INFO L78 Accepts]: Start accepts. Automaton has 11818 states and 20629 transitions. Word has length 126 [2023-12-25 05:35:20,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:20,021 INFO L495 AbstractCegarLoop]: Abstraction has 11818 states and 20629 transitions. [2023-12-25 05:35:20,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:35:20,021 INFO L276 IsEmpty]: Start isEmpty. Operand 11818 states and 20629 transitions. [2023-12-25 05:35:20,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:35:20,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:20,024 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:20,050 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 (18)] Ended with exit code 0 [2023-12-25 05:35:20,252 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 05:35:20,252 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:20,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2098314296, now seen corresponding path program 1 times [2023-12-25 05:35:20,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:20,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302428569] [2023-12-25 05:35:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:20,253 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 05:35:20,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:20,269 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 05:35:20,316 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 05:35:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:20,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:20,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:20,602 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:35:20,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:20,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:20,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302428569] [2023-12-25 05:35:20,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302428569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:20,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:20,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:20,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266665512] [2023-12-25 05:35:20,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:20,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:20,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:20,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:20,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:20,605 INFO L87 Difference]: Start difference. First operand 11818 states and 20629 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:35:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:21,476 INFO L93 Difference]: Finished difference Result 23768 states and 42573 transitions. [2023-12-25 05:35:21,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:21,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2023-12-25 05:35:21,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:21,552 INFO L225 Difference]: With dead ends: 23768 [2023-12-25 05:35:21,552 INFO L226 Difference]: Without dead ends: 11962 [2023-12-25 05:35:21,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:21,642 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 21 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:21,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2525 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:21,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11962 states. [2023-12-25 05:35:22,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11962 to 11938. [2023-12-25 05:35:22,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11938 states, 9183 states have (on average 1.5974082543830992) internal successors, (14669), 9489 states have internal predecessors, (14669), 2152 states have call successors, (2152), 651 states have call predecessors, (2152), 602 states have return successors, (3908), 2101 states have call predecessors, (3908), 2126 states have call successors, (3908) [2023-12-25 05:35:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11938 states to 11938 states and 20729 transitions. [2023-12-25 05:35:22,162 INFO L78 Accepts]: Start accepts. Automaton has 11938 states and 20729 transitions. Word has length 128 [2023-12-25 05:35:22,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:22,162 INFO L495 AbstractCegarLoop]: Abstraction has 11938 states and 20729 transitions. [2023-12-25 05:35:22,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:35:22,162 INFO L276 IsEmpty]: Start isEmpty. Operand 11938 states and 20729 transitions. [2023-12-25 05:35:22,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 05:35:22,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:22,164 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:22,181 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 05:35:22,374 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 05:35:22,375 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:22,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1902881884, now seen corresponding path program 1 times [2023-12-25 05:35:22,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:22,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133006195] [2023-12-25 05:35:22,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:22,377 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 05:35:22,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:22,378 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 05:35:22,412 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 05:35:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:22,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:22,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:22,796 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:35:22,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:22,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:22,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133006195] [2023-12-25 05:35:22,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133006195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:22,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:22,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:22,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940066930] [2023-12-25 05:35:22,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:22,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:22,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:22,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:22,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:22,798 INFO L87 Difference]: Start difference. First operand 11938 states and 20729 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:24,686 INFO L93 Difference]: Finished difference Result 36045 states and 66870 transitions. [2023-12-25 05:35:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:24,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 138 [2023-12-25 05:35:24,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:24,843 INFO L225 Difference]: With dead ends: 36045 [2023-12-25 05:35:24,843 INFO L226 Difference]: Without dead ends: 24119 [2023-12-25 05:35:24,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:24,955 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 837 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 4420 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:24,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 4420 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24119 states. [2023-12-25 05:35:26,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24119 to 23939. [2023-12-25 05:35:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23939 states, 18419 states have (on average 1.5927031869265433) internal successors, (29336), 19029 states have internal predecessors, (29336), 4293 states have call successors, (4293), 1299 states have call predecessors, (4293), 1226 states have return successors, (10135), 4218 states have call predecessors, (10135), 4243 states have call successors, (10135) [2023-12-25 05:35:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23939 states to 23939 states and 43764 transitions. [2023-12-25 05:35:26,531 INFO L78 Accepts]: Start accepts. Automaton has 23939 states and 43764 transitions. Word has length 138 [2023-12-25 05:35:26,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:26,531 INFO L495 AbstractCegarLoop]: Abstraction has 23939 states and 43764 transitions. [2023-12-25 05:35:26,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:26,531 INFO L276 IsEmpty]: Start isEmpty. Operand 23939 states and 43764 transitions. [2023-12-25 05:35:26,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 05:35:26,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:26,533 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:26,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:26,743 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 05:35:26,744 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:26,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:26,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1192224220, now seen corresponding path program 1 times [2023-12-25 05:35:26,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:26,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952098898] [2023-12-25 05:35:26,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:26,745 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 05:35:26,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:26,746 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 05:35:26,747 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 05:35:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:27,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:35:27,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:35:27,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:27,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:27,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952098898] [2023-12-25 05:35:27,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952098898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:27,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:27,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:35:27,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116563375] [2023-12-25 05:35:27,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:27,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:27,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:27,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:27,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:27,257 INFO L87 Difference]: Start difference. First operand 23939 states and 43764 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:29,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:29,420 INFO L93 Difference]: Finished difference Result 47998 states and 89866 transitions. [2023-12-25 05:35:29,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:29,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140 [2023-12-25 05:35:29,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:29,707 INFO L225 Difference]: With dead ends: 47998 [2023-12-25 05:35:29,707 INFO L226 Difference]: Without dead ends: 24071 [2023-12-25 05:35:30,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:30,084 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 666 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:30,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 2884 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:30,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24071 states. [2023-12-25 05:35:31,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24071 to 24003. [2023-12-25 05:35:31,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24003 states, 18467 states have (on average 1.591162614393242) internal successors, (29384), 19077 states have internal predecessors, (29384), 4293 states have call successors, (4293), 1315 states have call predecessors, (4293), 1242 states have return successors, (10135), 4218 states have call predecessors, (10135), 4243 states have call successors, (10135) [2023-12-25 05:35:31,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24003 states to 24003 states and 43812 transitions. [2023-12-25 05:35:31,432 INFO L78 Accepts]: Start accepts. Automaton has 24003 states and 43812 transitions. Word has length 140 [2023-12-25 05:35:31,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:31,432 INFO L495 AbstractCegarLoop]: Abstraction has 24003 states and 43812 transitions. [2023-12-25 05:35:31,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:31,432 INFO L276 IsEmpty]: Start isEmpty. Operand 24003 states and 43812 transitions. [2023-12-25 05:35:31,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:35:31,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:31,434 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:31,454 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 05:35:31,643 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 05:35:31,643 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:31,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:31,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1265683443, now seen corresponding path program 1 times [2023-12-25 05:35:31,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:31,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761628499] [2023-12-25 05:35:31,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:31,644 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 05:35:31,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:31,646 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 05:35:31,679 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 05:35:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:31,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:35:31,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:35:32,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:32,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761628499] [2023-12-25 05:35:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761628499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:32,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:32,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:35:32,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439906630] [2023-12-25 05:35:32,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:32,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:32,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:32,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:32,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:32,220 INFO L87 Difference]: Start difference. First operand 24003 states and 43812 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:35:34,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:34,192 INFO L93 Difference]: Finished difference Result 49828 states and 90981 transitions. [2023-12-25 05:35:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:35:34,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 142 [2023-12-25 05:35:34,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:34,333 INFO L225 Difference]: With dead ends: 49828 [2023-12-25 05:35:34,333 INFO L226 Difference]: Without dead ends: 25837 [2023-12-25 05:35:34,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:34,538 INFO L413 NwaCegarLoop]: 1011 mSDtfsCounter, 760 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:34,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 2684 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:34,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25837 states. [2023-12-25 05:35:35,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25837 to 25698. [2023-12-25 05:35:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25698 states, 19755 states have (on average 1.5902303214376108) internal successors, (31415), 20397 states have internal predecessors, (31415), 4606 states have call successors, (4606), 1412 states have call predecessors, (4606), 1336 states have return successors, (10719), 4498 states have call predecessors, (10719), 4553 states have call successors, (10719) [2023-12-25 05:35:35,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25698 states to 25698 states and 46740 transitions. [2023-12-25 05:35:35,966 INFO L78 Accepts]: Start accepts. Automaton has 25698 states and 46740 transitions. Word has length 142 [2023-12-25 05:35:35,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:35,967 INFO L495 AbstractCegarLoop]: Abstraction has 25698 states and 46740 transitions. [2023-12-25 05:35:35,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:35:35,967 INFO L276 IsEmpty]: Start isEmpty. Operand 25698 states and 46740 transitions. [2023-12-25 05:35:35,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:35:35,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:35,969 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:35,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:36,182 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 05:35:36,182 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:36,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:36,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1045532619, now seen corresponding path program 1 times [2023-12-25 05:35:36,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:36,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100086490] [2023-12-25 05:35:36,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:36,183 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 05:35:36,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:36,185 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 05:35:36,216 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 05:35:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:36,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:35:36,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:35:36,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:36,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:36,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100086490] [2023-12-25 05:35:36,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100086490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:36,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:36,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:35:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366868269] [2023-12-25 05:35:36,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:36,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:36,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:36,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:36,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:36,659 INFO L87 Difference]: Start difference. First operand 25698 states and 46740 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:39,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:39,145 INFO L93 Difference]: Finished difference Result 51541 states and 95919 transitions. [2023-12-25 05:35:39,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:39,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2023-12-25 05:35:39,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:39,323 INFO L225 Difference]: With dead ends: 51541 [2023-12-25 05:35:39,324 INFO L226 Difference]: Without dead ends: 25855 [2023-12-25 05:35:39,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:39,748 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 657 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:39,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 2885 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 05:35:39,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25855 states. [2023-12-25 05:35:40,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25855 to 25783. [2023-12-25 05:35:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25783 states, 19823 states have (on average 1.5882056197346517) internal successors, (31483), 20465 states have internal predecessors, (31483), 4606 states have call successors, (4606), 1429 states have call predecessors, (4606), 1353 states have return successors, (10719), 4498 states have call predecessors, (10719), 4553 states have call successors, (10719) [2023-12-25 05:35:41,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25783 states to 25783 states and 46808 transitions. [2023-12-25 05:35:41,324 INFO L78 Accepts]: Start accepts. Automaton has 25783 states and 46808 transitions. Word has length 141 [2023-12-25 05:35:41,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:41,324 INFO L495 AbstractCegarLoop]: Abstraction has 25783 states and 46808 transitions. [2023-12-25 05:35:41,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:41,325 INFO L276 IsEmpty]: Start isEmpty. Operand 25783 states and 46808 transitions. [2023-12-25 05:35:41,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:35:41,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:41,326 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:41,338 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 05:35:41,535 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 05:35:41,536 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:41,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:41,555 INFO L85 PathProgramCache]: Analyzing trace with hash 915194272, now seen corresponding path program 1 times [2023-12-25 05:35:41,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:41,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861154374] [2023-12-25 05:35:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:41,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:41,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:41,557 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 05:35:41,603 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 05:35:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:41,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:35:41,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:35:42,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:42,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:42,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861154374] [2023-12-25 05:35:42,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861154374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:42,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:42,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:35:42,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750061203] [2023-12-25 05:35:42,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:42,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:42,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:42,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:42,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:42,007 INFO L87 Difference]: Start difference. First operand 25783 states and 46808 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:44,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:44,309 INFO L93 Difference]: Finished difference Result 51728 states and 96063 transitions. [2023-12-25 05:35:44,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:44,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2023-12-25 05:35:44,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:44,450 INFO L225 Difference]: With dead ends: 51728 [2023-12-25 05:35:44,450 INFO L226 Difference]: Without dead ends: 25957 [2023-12-25 05:35:44,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:44,797 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 665 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:44,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 2704 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25957 states. [2023-12-25 05:35:45,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25957 to 25885. [2023-12-25 05:35:45,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25885 states, 19908 states have (on average 1.58569419328913) internal successors, (31568), 20550 states have internal predecessors, (31568), 4606 states have call successors, (4606), 1446 states have call predecessors, (4606), 1370 states have return successors, (10719), 4498 states have call predecessors, (10719), 4553 states have call successors, (10719) [2023-12-25 05:35:45,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25885 states to 25885 states and 46893 transitions. [2023-12-25 05:35:45,990 INFO L78 Accepts]: Start accepts. Automaton has 25885 states and 46893 transitions. Word has length 142 [2023-12-25 05:35:45,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:45,990 INFO L495 AbstractCegarLoop]: Abstraction has 25885 states and 46893 transitions. [2023-12-25 05:35:45,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:45,991 INFO L276 IsEmpty]: Start isEmpty. Operand 25885 states and 46893 transitions. [2023-12-25 05:35:45,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:35:45,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:45,992 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:46,005 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 05:35:46,203 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 05:35:46,203 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:46,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:46,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1889870889, now seen corresponding path program 1 times [2023-12-25 05:35:46,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:46,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169802782] [2023-12-25 05:35:46,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:46,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:46,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:46,206 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 05:35:46,206 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 05:35:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:46,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:35:46,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:35:46,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:46,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:46,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169802782] [2023-12-25 05:35:46,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169802782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:46,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:46,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:35:46,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813269380] [2023-12-25 05:35:46,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:46,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:46,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:46,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:46,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:46,647 INFO L87 Difference]: Start difference. First operand 25885 states and 46893 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:48,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:48,892 INFO L93 Difference]: Finished difference Result 51949 states and 96245 transitions. [2023-12-25 05:35:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:48,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2023-12-25 05:35:48,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:49,014 INFO L225 Difference]: With dead ends: 51949 [2023-12-25 05:35:49,014 INFO L226 Difference]: Without dead ends: 26076 [2023-12-25 05:35:49,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:49,232 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 657 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:49,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 2885 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:35:49,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26076 states. [2023-12-25 05:35:50,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26076 to 26004. [2023-12-25 05:35:50,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26004 states, 20010 states have (on average 1.5827086456771615) internal successors, (31670), 20652 states have internal predecessors, (31670), 4606 states have call successors, (4606), 1463 states have call predecessors, (4606), 1387 states have return successors, (10719), 4498 states have call predecessors, (10719), 4553 states have call successors, (10719) [2023-12-25 05:35:50,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26004 states to 26004 states and 46995 transitions. [2023-12-25 05:35:50,653 INFO L78 Accepts]: Start accepts. Automaton has 26004 states and 46995 transitions. Word has length 142 [2023-12-25 05:35:50,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:50,653 INFO L495 AbstractCegarLoop]: Abstraction has 26004 states and 46995 transitions. [2023-12-25 05:35:50,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:35:50,653 INFO L276 IsEmpty]: Start isEmpty. Operand 26004 states and 46995 transitions. [2023-12-25 05:35:50,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:35:50,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:50,655 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:50,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-25 05:35:50,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:50,863 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:50,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:50,864 INFO L85 PathProgramCache]: Analyzing trace with hash 355400514, now seen corresponding path program 1 times [2023-12-25 05:35:50,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:50,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122531873] [2023-12-25 05:35:50,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:50,864 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 05:35:50,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:50,866 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:50,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:35:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:51,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:35:51,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:51,228 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:35:51,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:51,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:51,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122531873] [2023-12-25 05:35:51,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122531873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:51,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:51,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:35:51,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083446866] [2023-12-25 05:35:51,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:51,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:51,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:51,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:51,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:51,230 INFO L87 Difference]: Start difference. First operand 26004 states and 46995 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:35:53,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:53,287 INFO L93 Difference]: Finished difference Result 50735 states and 95970 transitions. [2023-12-25 05:35:53,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:53,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-12-25 05:35:53,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:53,437 INFO L225 Difference]: With dead ends: 50735 [2023-12-25 05:35:53,438 INFO L226 Difference]: Without dead ends: 31193 [2023-12-25 05:35:53,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:35:53,596 INFO L413 NwaCegarLoop]: 892 mSDtfsCounter, 243 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 3524 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:53,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 3524 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:35:53,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31193 states. [2023-12-25 05:35:54,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31193 to 29513. [2023-12-25 05:35:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29513 states, 21931 states have (on average 1.5735260590032374) internal successors, (34509), 23003 states have internal predecessors, (34509), 6160 states have call successors, (6160), 1463 states have call predecessors, (6160), 1421 states have return successors, (14557), 6040 states have call predecessors, (14557), 6107 states have call successors, (14557) [2023-12-25 05:35:55,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29513 states to 29513 states and 55226 transitions. [2023-12-25 05:35:55,318 INFO L78 Accepts]: Start accepts. Automaton has 29513 states and 55226 transitions. Word has length 143 [2023-12-25 05:35:55,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:55,319 INFO L495 AbstractCegarLoop]: Abstraction has 29513 states and 55226 transitions. [2023-12-25 05:35:55,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:35:55,319 INFO L276 IsEmpty]: Start isEmpty. Operand 29513 states and 55226 transitions. [2023-12-25 05:35:55,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:35:55,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:55,321 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:55,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:55,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:55,531 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:55,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:55,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1900283355, now seen corresponding path program 1 times [2023-12-25 05:35:55,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:55,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947119881] [2023-12-25 05:35:55,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:55,532 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 05:35:55,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:55,533 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:55,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:35:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:55,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:55,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:55,935 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:35:55,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:55,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:55,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947119881] [2023-12-25 05:35:55,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947119881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:55,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:55,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:55,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459455610] [2023-12-25 05:35:55,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:55,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:55,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:55,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:55,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:55,937 INFO L87 Difference]: Start difference. First operand 29513 states and 55226 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:36:00,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:00,808 INFO L93 Difference]: Finished difference Result 88772 states and 177162 transitions. [2023-12-25 05:36:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:00,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2023-12-25 05:36:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:01,364 INFO L225 Difference]: With dead ends: 88772 [2023-12-25 05:36:01,364 INFO L226 Difference]: Without dead ends: 59271 [2023-12-25 05:36:01,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:01,908 INFO L413 NwaCegarLoop]: 1069 mSDtfsCounter, 824 mSDsluCounter, 3665 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:01,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 4734 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:36:01,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59271 states. [2023-12-25 05:36:04,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59271 to 59216. [2023-12-25 05:36:04,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59216 states, 44009 states have (on average 1.5716103524279126) internal successors, (69165), 46151 states have internal predecessors, (69165), 12315 states have call successors, (12315), 2923 states have call predecessors, (12315), 2891 states have return successors, (34778), 12129 states have call predecessors, (34778), 12211 states have call successors, (34778) [2023-12-25 05:36:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59216 states to 59216 states and 116258 transitions. [2023-12-25 05:36:06,226 INFO L78 Accepts]: Start accepts. Automaton has 59216 states and 116258 transitions. Word has length 151 [2023-12-25 05:36:06,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:06,235 INFO L495 AbstractCegarLoop]: Abstraction has 59216 states and 116258 transitions. [2023-12-25 05:36:06,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:36:06,242 INFO L276 IsEmpty]: Start isEmpty. Operand 59216 states and 116258 transitions. [2023-12-25 05:36:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-25 05:36:06,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:06,247 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:06,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-25 05:36:06,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:06,449 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:06,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:06,450 INFO L85 PathProgramCache]: Analyzing trace with hash 188806072, now seen corresponding path program 1 times [2023-12-25 05:36:06,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:06,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784468406] [2023-12-25 05:36:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:06,450 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 05:36:06,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:06,451 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:06,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 05:36:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:06,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:36:06,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:36:07,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:07,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:07,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784468406] [2023-12-25 05:36:07,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784468406] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:07,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:07,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:36:07,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845811996] [2023-12-25 05:36:07,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:07,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:36:07,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:07,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:36:07,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:07,093 INFO L87 Difference]: Start difference. First operand 59216 states and 116258 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:36:13,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:13,379 INFO L93 Difference]: Finished difference Result 118326 states and 236609 transitions. [2023-12-25 05:36:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:13,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2023-12-25 05:36:13,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:13,956 INFO L225 Difference]: With dead ends: 118326 [2023-12-25 05:36:13,956 INFO L226 Difference]: Without dead ends: 59056 [2023-12-25 05:36:15,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:15,099 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 663 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 2697 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:15,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 2697 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:36:15,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59056 states. [2023-12-25 05:36:17,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59056 to 58920. [2023-12-25 05:36:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58920 states, 43780 states have (on average 1.5721562357240748) internal successors, (68829), 45922 states have internal predecessors, (68829), 12272 states have call successors, (12272), 2910 states have call predecessors, (12272), 2867 states have return successors, (34371), 12075 states have call predecessors, (34371), 12168 states have call successors, (34371) [2023-12-25 05:36:19,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58920 states to 58920 states and 115472 transitions. [2023-12-25 05:36:19,537 INFO L78 Accepts]: Start accepts. Automaton has 58920 states and 115472 transitions. Word has length 150 [2023-12-25 05:36:19,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:19,538 INFO L495 AbstractCegarLoop]: Abstraction has 58920 states and 115472 transitions. [2023-12-25 05:36:19,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:36:19,538 INFO L276 IsEmpty]: Start isEmpty. Operand 58920 states and 115472 transitions. [2023-12-25 05:36:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:36:19,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:19,541 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:19,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:19,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:19,750 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:19,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:19,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1412236249, now seen corresponding path program 1 times [2023-12-25 05:36:19,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:19,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843448825] [2023-12-25 05:36:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:19,752 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 05:36:19,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:19,753 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:19,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 05:36:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:20,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:36:20,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:20,108 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-25 05:36:20,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:20,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:20,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843448825] [2023-12-25 05:36:20,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843448825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:20,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:20,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:36:20,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666503654] [2023-12-25 05:36:20,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:20,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:36:20,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:20,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:36:20,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:20,110 INFO L87 Difference]: Start difference. First operand 58920 states and 115472 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:36:25,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:25,271 INFO L93 Difference]: Finished difference Result 116229 states and 223548 transitions. [2023-12-25 05:36:25,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:36:25,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2023-12-25 05:36:25,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:25,618 INFO L225 Difference]: With dead ends: 116229 [2023-12-25 05:36:25,618 INFO L226 Difference]: Without dead ends: 58559 [2023-12-25 05:36:26,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:36:26,312 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 22 mSDsluCounter, 5131 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:26,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5990 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:26,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58559 states. [2023-12-25 05:36:29,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58559 to 57187. [2023-12-25 05:36:29,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57187 states, 42450 states have (on average 1.5808009422850413) internal successors, (67105), 44590 states have internal predecessors, (67105), 12020 states have call successors, (12020), 2712 states have call predecessors, (12020), 2716 states have return successors, (32339), 11872 states have call predecessors, (32339), 11967 states have call successors, (32339) [2023-12-25 05:36:30,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57187 states to 57187 states and 111464 transitions. [2023-12-25 05:36:30,184 INFO L78 Accepts]: Start accepts. Automaton has 57187 states and 111464 transitions. Word has length 151 [2023-12-25 05:36:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:30,185 INFO L495 AbstractCegarLoop]: Abstraction has 57187 states and 111464 transitions. [2023-12-25 05:36:30,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:36:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 57187 states and 111464 transitions. [2023-12-25 05:36:30,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-25 05:36:30,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:30,191 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:30,200 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 (29)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:30,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 05:36:30,394 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:30,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:30,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1862379018, now seen corresponding path program 1 times [2023-12-25 05:36:30,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:30,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756411493] [2023-12-25 05:36:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:30,395 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 05:36:30,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:30,396 INFO L229 MonitoredProcess]: Starting monitored process 30 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 05:36:30,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 05:36:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:30,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:36:30,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-25 05:36:30,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:30,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:30,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756411493] [2023-12-25 05:36:30,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756411493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:30,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:30,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:36:30,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031132495] [2023-12-25 05:36:30,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:30,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:36:30,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:30,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:36:30,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:30,819 INFO L87 Difference]: Start difference. First operand 57187 states and 111464 transitions. Second operand has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-25 05:36:36,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:36,330 INFO L93 Difference]: Finished difference Result 114804 states and 227343 transitions. [2023-12-25 05:36:36,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:36:36,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 174 [2023-12-25 05:36:36,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:36,996 INFO L225 Difference]: With dead ends: 114804 [2023-12-25 05:36:36,996 INFO L226 Difference]: Without dead ends: 57323 [2023-12-25 05:36:37,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:36:37,808 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 804 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:37,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 4096 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:36:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57323 states.