/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_spec13_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:16:58,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:16:58,542 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 05:16:58,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:16:58,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:16:58,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:16:58,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:16:58,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:16:58,583 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:16:58,587 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:16:58,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:16:58,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:16:58,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:16:58,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:16:58,589 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:16:58,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:16:58,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:16:58,590 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:16:58,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:16:58,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:16:58,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:16:58,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:16:58,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:16:58,592 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:16:58,592 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:16:58,592 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:16:58,592 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:16:58,592 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:16:58,593 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:16:58,593 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:16:58,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:16:58,594 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:16:58,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:16:58,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:16:58,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:16:58,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:16:58,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:16:58,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:16:58,595 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:16:58,595 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:16:58,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:16:58,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:16:58,595 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:16:58,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:16:58,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:16:58,596 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:16:58,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:16:58,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:16:58,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:16:58,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:16:58,856 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:16:58,857 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:16:58,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product21.cil.c [2023-12-25 05:17:00,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:17:00,312 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:17:00,312 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product21.cil.c [2023-12-25 05:17:00,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/159ac9cb7/22b107cb14454831980dc5f0040203dc/FLAG2114cf734 [2023-12-25 05:17:00,345 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/159ac9cb7/22b107cb14454831980dc5f0040203dc [2023-12-25 05:17:00,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:17:00,348 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:17:00,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:17:00,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:17:00,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:17:00,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:17:00" (1/1) ... [2023-12-25 05:17:00,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ee9063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:00, skipping insertion in model container [2023-12-25 05:17:00,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:17:00" (1/1) ... [2023-12-25 05:17:00,425 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:17:00,874 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_spec13_product21.cil.c[58922,58935] [2023-12-25 05:17:00,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:17:00,941 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:17:00,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:17:01,041 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_spec13_product21.cil.c[58922,58935] [2023-12-25 05:17:01,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:17:01,090 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:17:01,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2023-12-25 05:17:01,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [716] [2023-12-25 05:17:01,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [754] [2023-12-25 05:17:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [875] [2023-12-25 05:17:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1230] [2023-12-25 05:17:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2746] [2023-12-25 05:17:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2837] [2023-12-25 05:17:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2846] [2023-12-25 05:17:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [2861] [2023-12-25 05:17:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2950] [2023-12-25 05:17:01,182 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_spec13_product21.cil.c[58922,58935] [2023-12-25 05:17:01,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:17:01,224 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:17:01,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01 WrapperNode [2023-12-25 05:17:01,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:17:01,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:17:01,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:17:01,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:17:01,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,282 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,333 INFO L138 Inliner]: procedures = 92, calls = 338, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 766 [2023-12-25 05:17:01,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:17:01,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:17:01,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:17:01,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:17:01,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,370 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 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 05:17:01,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:17:01,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:17:01,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:17:01,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:17:01,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (1/1) ... [2023-12-25 05:17:01,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:17:01,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:17:01,491 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 05:17:01,520 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 05:17:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-12-25 05:17:01,528 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-12-25 05:17:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:17:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:17:01,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:17:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:17:01,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:17:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-12-25 05:17:01,530 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-12-25 05:17:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:17:01,530 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:17:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:17:01,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:17:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:17:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:17:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:17:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:17:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:17:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:17:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:17:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:17:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:17:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:17:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:17:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:17:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:17:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:17:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:17:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:17:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:17:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:17:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:17:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:17:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:17:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:17:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:17:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:17:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:17:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:17:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:17:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:17:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:17:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:17:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:17:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:17:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:17:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:17:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:17:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:17:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:17:01,538 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:17:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:17:01,538 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:17:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:17:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:17:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:17:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:17:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:17:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:17:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:17:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:17:01,732 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:17:01,734 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:17:02,850 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:17:02,948 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:17:02,948 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-25 05:17:02,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:17:02 BoogieIcfgContainer [2023-12-25 05:17:02,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:17:02,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:17:02,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:17:02,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:17:02,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:17:00" (1/3) ... [2023-12-25 05:17:02,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168a0129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:17:02, skipping insertion in model container [2023-12-25 05:17:02,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:17:01" (2/3) ... [2023-12-25 05:17:02,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168a0129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:17:02, skipping insertion in model container [2023-12-25 05:17:02,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:17:02" (3/3) ... [2023-12-25 05:17:02,957 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product21.cil.c [2023-12-25 05:17:02,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:17:02,972 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:17:03,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:17:03,046 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;@2ba0af3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:17:03,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:17:03,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 443 states have (on average 1.72686230248307) internal successors, (765), 461 states have internal predecessors, (765), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:17:03,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:17:03,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:03,097 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:03,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:03,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:03,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1069495149, now seen corresponding path program 1 times [2023-12-25 05:17:03,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:03,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754467647] [2023-12-25 05:17:03,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:03,120 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 05:17:03,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:03,123 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 05:17:03,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:17:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:03,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:17:03,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:17:03,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:03,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:03,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754467647] [2023-12-25 05:17:03,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754467647] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:03,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:03,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:17:03,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566541629] [2023-12-25 05:17:03,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:03,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:17:03,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:03,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:17:03,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:17:03,596 INFO L87 Difference]: Start difference. First operand has 570 states, 443 states have (on average 1.72686230248307) internal successors, (765), 461 states have internal predecessors, (765), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:03,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:03,776 INFO L93 Difference]: Finished difference Result 1124 states and 1919 transitions. [2023-12-25 05:17:03,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:17:03,779 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2023-12-25 05:17:03,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:03,796 INFO L225 Difference]: With dead ends: 1124 [2023-12-25 05:17:03,797 INFO L226 Difference]: Without dead ends: 564 [2023-12-25 05:17:03,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:17:03,811 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:03,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 937 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:17:03,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-12-25 05:17:03,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2023-12-25 05:17:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 440 states have (on average 1.7022727272727274) internal successors, (749), 456 states have internal predecessors, (749), 100 states have call successors, (100), 25 states have call predecessors, (100), 23 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:17:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 946 transitions. [2023-12-25 05:17:03,919 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 946 transitions. Word has length 103 [2023-12-25 05:17:03,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:03,921 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 946 transitions. [2023-12-25 05:17:03,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:03,921 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 946 transitions. [2023-12-25 05:17:03,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:17:03,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:03,927 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:03,943 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 05:17:04,138 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 05:17:04,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:04,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:04,140 INFO L85 PathProgramCache]: Analyzing trace with hash -428494387, now seen corresponding path program 1 times [2023-12-25 05:17:04,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:04,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817356765] [2023-12-25 05:17:04,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:04,141 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 05:17:04,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:04,142 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 05:17:04,166 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 05:17:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:04,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:17:04,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-25 05:17:04,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:04,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:04,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817356765] [2023-12-25 05:17:04,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817356765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:04,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:04,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:17:04,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97243281] [2023-12-25 05:17:04,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:04,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:17:04,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:04,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:17:04,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:17:04,525 INFO L87 Difference]: Start difference. First operand 564 states and 946 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:04,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:04,717 INFO L93 Difference]: Finished difference Result 1129 states and 1897 transitions. [2023-12-25 05:17:04,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:17:04,718 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2023-12-25 05:17:04,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:04,722 INFO L225 Difference]: With dead ends: 1129 [2023-12-25 05:17:04,723 INFO L226 Difference]: Without dead ends: 568 [2023-12-25 05:17:04,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 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 05:17:04,727 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 15 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:04,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2739 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:17:04,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-25 05:17:04,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-25 05:17:04,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 443 states have (on average 1.6975169300225734) internal successors, (752), 459 states have internal predecessors, (752), 100 states have call successors, (100), 26 states have call predecessors, (100), 24 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:17:04,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 949 transitions. [2023-12-25 05:17:04,773 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 949 transitions. Word has length 103 [2023-12-25 05:17:04,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:04,774 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 949 transitions. [2023-12-25 05:17:04,774 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:04,774 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 949 transitions. [2023-12-25 05:17:04,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:17:04,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:04,778 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:04,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:17:04,990 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 05:17:04,990 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:04,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:04,991 INFO L85 PathProgramCache]: Analyzing trace with hash -305373655, now seen corresponding path program 1 times [2023-12-25 05:17:04,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:04,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284013806] [2023-12-25 05:17:04,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:04,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:17:04,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:04,993 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 05:17:04,995 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 05:17:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:05,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:17:05,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:17:05,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:05,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:05,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284013806] [2023-12-25 05:17:05,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284013806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:05,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:05,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:17:05,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000637101] [2023-12-25 05:17:05,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:05,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:17:05,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:05,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:17:05,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:17:05,378 INFO L87 Difference]: Start difference. First operand 568 states and 949 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:05,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:05,692 INFO L93 Difference]: Finished difference Result 1144 states and 1914 transitions. [2023-12-25 05:17:05,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:17:05,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2023-12-25 05:17:05,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:05,697 INFO L225 Difference]: With dead ends: 1144 [2023-12-25 05:17:05,697 INFO L226 Difference]: Without dead ends: 581 [2023-12-25 05:17:05,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 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 05:17:05,701 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 114 mSDsluCounter, 4485 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 5402 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:05,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 5402 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:17:05,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-12-25 05:17:05,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2023-12-25 05:17:05,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 452 states have (on average 1.6946902654867257) internal successors, (766), 470 states have internal predecessors, (766), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (103), 96 states have call predecessors, (103), 98 states have call successors, (103) [2023-12-25 05:17:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 970 transitions. [2023-12-25 05:17:05,728 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 970 transitions. Word has length 105 [2023-12-25 05:17:05,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:05,728 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 970 transitions. [2023-12-25 05:17:05,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 970 transitions. [2023-12-25 05:17:05,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:17:05,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:05,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:05,744 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 05:17:05,943 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 05:17:05,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:05,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:05,945 INFO L85 PathProgramCache]: Analyzing trace with hash 257472436, now seen corresponding path program 1 times [2023-12-25 05:17:05,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:05,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338215988] [2023-12-25 05:17:05,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:05,945 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 05:17:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:05,947 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 05:17:05,954 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 05:17:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:06,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:17:06,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:06,347 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:17:06,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:06,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:06,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338215988] [2023-12-25 05:17:06,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338215988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:06,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:06,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:17:06,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749085122] [2023-12-25 05:17:06,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:06,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:17:06,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:06,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:17:06,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:17:06,352 INFO L87 Difference]: Start difference. First operand 580 states and 970 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:06,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:06,689 INFO L93 Difference]: Finished difference Result 1162 states and 1945 transitions. [2023-12-25 05:17:06,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:17:06,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2023-12-25 05:17:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:06,693 INFO L225 Difference]: With dead ends: 1162 [2023-12-25 05:17:06,694 INFO L226 Difference]: Without dead ends: 589 [2023-12-25 05:17:06,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 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 05:17:06,698 INFO L413 NwaCegarLoop]: 927 mSDtfsCounter, 101 mSDsluCounter, 4515 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 5442 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:06,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 5442 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:17:06,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2023-12-25 05:17:06,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 580. [2023-12-25 05:17:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 452 states have (on average 1.6946902654867257) internal successors, (766), 470 states have internal predecessors, (766), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (103), 96 states have call predecessors, (103), 98 states have call successors, (103) [2023-12-25 05:17:06,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 970 transitions. [2023-12-25 05:17:06,723 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 970 transitions. Word has length 106 [2023-12-25 05:17:06,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:06,724 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 970 transitions. [2023-12-25 05:17:06,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:06,724 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 970 transitions. [2023-12-25 05:17:06,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:17:06,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:06,728 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:06,740 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 05:17:06,938 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 05:17:06,939 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:06,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:06,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1902022886, now seen corresponding path program 1 times [2023-12-25 05:17:06,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:06,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697302599] [2023-12-25 05:17:06,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:06,941 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 05:17:06,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:06,942 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 05:17:06,943 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 05:17:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:07,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:17:07,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-25 05:17:07,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:07,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:07,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697302599] [2023-12-25 05:17:07,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697302599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:07,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:07,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:17:07,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829702842] [2023-12-25 05:17:07,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:07,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:17:07,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:07,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:17:07,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:17:07,300 INFO L87 Difference]: Start difference. First operand 580 states and 970 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:07,442 INFO L93 Difference]: Finished difference Result 1156 states and 1934 transitions. [2023-12-25 05:17:07,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:17:07,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2023-12-25 05:17:07,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:07,446 INFO L225 Difference]: With dead ends: 1156 [2023-12-25 05:17:07,446 INFO L226 Difference]: Without dead ends: 581 [2023-12-25 05:17:07,449 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 05:17:07,450 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 22 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:07,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2739 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:17:07,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-12-25 05:17:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2023-12-25 05:17:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 454 states have (on average 1.6938325991189427) internal successors, (769), 471 states have internal predecessors, (769), 100 states have call successors, (100), 27 states have call predecessors, (100), 26 states have return successors, (99), 95 states have call predecessors, (99), 97 states have call successors, (99) [2023-12-25 05:17:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 968 transitions. [2023-12-25 05:17:07,473 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 968 transitions. Word has length 106 [2023-12-25 05:17:07,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:07,473 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 968 transitions. [2023-12-25 05:17:07,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 968 transitions. [2023-12-25 05:17:07,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:17:07,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:07,477 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:07,491 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 05:17:07,694 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 05:17:07,695 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:07,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:07,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2075000870, now seen corresponding path program 1 times [2023-12-25 05:17:07,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:07,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335799915] [2023-12-25 05:17:07,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:07,696 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 05:17:07,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:07,697 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 05:17:07,697 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 05:17:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:08,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:17:08,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:08,080 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:17:08,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:08,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:08,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335799915] [2023-12-25 05:17:08,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335799915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:08,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:08,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:17:08,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014061282] [2023-12-25 05:17:08,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:08,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:17:08,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:08,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:17:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:17:08,082 INFO L87 Difference]: Start difference. First operand 581 states and 968 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:08,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:08,378 INFO L93 Difference]: Finished difference Result 1160 states and 1938 transitions. [2023-12-25 05:17:08,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:17:08,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 108 [2023-12-25 05:17:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:08,382 INFO L225 Difference]: With dead ends: 1160 [2023-12-25 05:17:08,382 INFO L226 Difference]: Without dead ends: 589 [2023-12-25 05:17:08,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 102 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 05:17:08,386 INFO L413 NwaCegarLoop]: 927 mSDtfsCounter, 100 mSDsluCounter, 4514 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5441 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:08,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5441 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:17:08,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2023-12-25 05:17:08,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 581. [2023-12-25 05:17:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 454 states have (on average 1.6938325991189427) internal successors, (769), 471 states have internal predecessors, (769), 100 states have call successors, (100), 27 states have call predecessors, (100), 26 states have return successors, (99), 95 states have call predecessors, (99), 97 states have call successors, (99) [2023-12-25 05:17:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 968 transitions. [2023-12-25 05:17:08,404 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 968 transitions. Word has length 108 [2023-12-25 05:17:08,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:08,405 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 968 transitions. [2023-12-25 05:17:08,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 968 transitions. [2023-12-25 05:17:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:17:08,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:08,409 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:08,420 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 05:17:08,619 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 05:17:08,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:08,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:08,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1748927035, now seen corresponding path program 1 times [2023-12-25 05:17:08,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:08,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920155054] [2023-12-25 05:17:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:08,621 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 05:17:08,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:08,622 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 05:17:08,622 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 05:17:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:08,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:17:08,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:08,980 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:17:08,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:08,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:08,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920155054] [2023-12-25 05:17:08,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920155054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:08,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:08,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:17:08,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216160524] [2023-12-25 05:17:08,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:08,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:17:08,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:08,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:17:08,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:17:08,983 INFO L87 Difference]: Start difference. First operand 581 states and 968 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:09,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:09,235 INFO L93 Difference]: Finished difference Result 1179 states and 1975 transitions. [2023-12-25 05:17:09,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:17:09,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2023-12-25 05:17:09,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:09,239 INFO L225 Difference]: With dead ends: 1179 [2023-12-25 05:17:09,239 INFO L226 Difference]: Without dead ends: 608 [2023-12-25 05:17:09,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 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 05:17:09,243 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 110 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:09,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2585 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:17:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2023-12-25 05:17:09,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 600. [2023-12-25 05:17:09,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 472 states have (on average 1.6885593220338984) internal successors, (797), 489 states have internal predecessors, (797), 100 states have call successors, (100), 28 states have call predecessors, (100), 27 states have return successors, (98), 95 states have call predecessors, (98), 97 states have call successors, (98) [2023-12-25 05:17:09,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 995 transitions. [2023-12-25 05:17:09,261 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 995 transitions. Word has length 109 [2023-12-25 05:17:09,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:09,262 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 995 transitions. [2023-12-25 05:17:09,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 995 transitions. [2023-12-25 05:17:09,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 05:17:09,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:09,265 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:09,279 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 05:17:09,479 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 05:17:09,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:09,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:09,480 INFO L85 PathProgramCache]: Analyzing trace with hash 159978878, now seen corresponding path program 1 times [2023-12-25 05:17:09,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:09,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158008207] [2023-12-25 05:17:09,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:09,481 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 05:17:09,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:09,482 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 05:17:09,484 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 (9)] Waiting until timeout for monitored process [2023-12-25 05:17:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:09,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:17:09,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:17:09,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:09,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:09,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158008207] [2023-12-25 05:17:09,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158008207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:09,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:09,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:17:09,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738568751] [2023-12-25 05:17:09,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:09,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:17:09,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:09,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:17:09,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:17:09,830 INFO L87 Difference]: Start difference. First operand 600 states and 995 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:10,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:10,058 INFO L93 Difference]: Finished difference Result 1206 states and 2004 transitions. [2023-12-25 05:17:10,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:17:10,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2023-12-25 05:17:10,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:10,062 INFO L225 Difference]: With dead ends: 1206 [2023-12-25 05:17:10,063 INFO L226 Difference]: Without dead ends: 616 [2023-12-25 05:17:10,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 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 05:17:10,066 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 149 mSDsluCounter, 4448 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 5365 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:10,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 5365 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:17:10,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-12-25 05:17:10,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 600. [2023-12-25 05:17:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 472 states have (on average 1.6885593220338984) internal successors, (797), 489 states have internal predecessors, (797), 100 states have call successors, (100), 28 states have call predecessors, (100), 27 states have return successors, (98), 95 states have call predecessors, (98), 97 states have call successors, (98) [2023-12-25 05:17:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 995 transitions. [2023-12-25 05:17:10,085 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 995 transitions. Word has length 110 [2023-12-25 05:17:10,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:10,085 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 995 transitions. [2023-12-25 05:17:10,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:10,086 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 995 transitions. [2023-12-25 05:17:10,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:17:10,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:10,089 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:10,104 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 05:17:10,300 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 05:17:10,300 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:10,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:10,301 INFO L85 PathProgramCache]: Analyzing trace with hash 875850485, now seen corresponding path program 1 times [2023-12-25 05:17:10,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:10,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402558451] [2023-12-25 05:17:10,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:10,301 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 05:17:10,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:10,302 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 05:17:10,304 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 05:17:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:10,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:17:10,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:17:10,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:10,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:10,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402558451] [2023-12-25 05:17:10,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402558451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:10,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:10,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:17:10,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75725532] [2023-12-25 05:17:10,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:10,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:17:10,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:10,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:17:10,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:17:10,687 INFO L87 Difference]: Start difference. First operand 600 states and 995 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:11,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:11,009 INFO L93 Difference]: Finished difference Result 1200 states and 1994 transitions. [2023-12-25 05:17:11,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:17:11,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2023-12-25 05:17:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:11,013 INFO L225 Difference]: With dead ends: 1200 [2023-12-25 05:17:11,013 INFO L226 Difference]: Without dead ends: 610 [2023-12-25 05:17:11,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 104 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 05:17:11,017 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 103 mSDsluCounter, 5347 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 6254 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:11,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 6254 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:17:11,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-12-25 05:17:11,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 604. [2023-12-25 05:17:11,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 476 states have (on average 1.6827731092436975) internal successors, (801), 493 states have internal predecessors, (801), 100 states have call successors, (100), 28 states have call predecessors, (100), 27 states have return successors, (98), 95 states have call predecessors, (98), 97 states have call successors, (98) [2023-12-25 05:17:11,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 999 transitions. [2023-12-25 05:17:11,036 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 999 transitions. Word has length 111 [2023-12-25 05:17:11,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:11,036 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 999 transitions. [2023-12-25 05:17:11,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:11,037 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 999 transitions. [2023-12-25 05:17:11,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:17:11,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:11,040 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:11,057 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 05:17:11,250 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 05:17:11,251 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:11,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:11,251 INFO L85 PathProgramCache]: Analyzing trace with hash 442962142, now seen corresponding path program 1 times [2023-12-25 05:17:11,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:11,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826662228] [2023-12-25 05:17:11,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:11,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:17:11,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:11,253 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 05:17:11,255 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 05:17:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:11,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:17:11,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:11,636 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:17:11,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:11,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826662228] [2023-12-25 05:17:11,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826662228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:11,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:11,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:17:11,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967063107] [2023-12-25 05:17:11,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:11,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:17:11,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:11,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:17:11,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:17:11,639 INFO L87 Difference]: Start difference. First operand 604 states and 999 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:12,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:12,022 INFO L93 Difference]: Finished difference Result 1210 states and 2006 transitions. [2023-12-25 05:17:12,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:17:12,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2023-12-25 05:17:12,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:12,026 INFO L225 Difference]: With dead ends: 1210 [2023-12-25 05:17:12,026 INFO L226 Difference]: Without dead ends: 616 [2023-12-25 05:17:12,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:17:12,029 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 102 mSDsluCounter, 5347 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6254 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:12,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 6254 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:17:12,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-12-25 05:17:12,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 610. [2023-12-25 05:17:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 482 states have (on average 1.6742738589211619) internal successors, (807), 499 states have internal predecessors, (807), 100 states have call successors, (100), 28 states have call predecessors, (100), 27 states have return successors, (98), 95 states have call predecessors, (98), 97 states have call successors, (98) [2023-12-25 05:17:12,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1005 transitions. [2023-12-25 05:17:12,047 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 1005 transitions. Word has length 112 [2023-12-25 05:17:12,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:12,048 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 1005 transitions. [2023-12-25 05:17:12,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 1005 transitions. [2023-12-25 05:17:12,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:17:12,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:12,052 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:12,066 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 05:17:12,263 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 05:17:12,263 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:12,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1994520218, now seen corresponding path program 1 times [2023-12-25 05:17:12,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:12,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308918873] [2023-12-25 05:17:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:12,265 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 05:17:12,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:12,266 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 05:17:12,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:17:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:12,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:17:12,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:12,664 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 05:17:12,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:12,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:12,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308918873] [2023-12-25 05:17:12,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308918873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:12,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:12,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:17:12,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669420406] [2023-12-25 05:17:12,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:12,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:17:12,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:12,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:17:12,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:17:12,666 INFO L87 Difference]: Start difference. First operand 610 states and 1005 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:13,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:13,061 INFO L93 Difference]: Finished difference Result 1224 states and 2022 transitions. [2023-12-25 05:17:13,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:17:13,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2023-12-25 05:17:13,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:13,065 INFO L225 Difference]: With dead ends: 1224 [2023-12-25 05:17:13,065 INFO L226 Difference]: Without dead ends: 624 [2023-12-25 05:17:13,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:17:13,069 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 102 mSDsluCounter, 5347 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6254 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:13,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 6254 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 05:17:13,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-12-25 05:17:13,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 618. [2023-12-25 05:17:13,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 490 states have (on average 1.663265306122449) internal successors, (815), 507 states have internal predecessors, (815), 100 states have call successors, (100), 28 states have call predecessors, (100), 27 states have return successors, (98), 95 states have call predecessors, (98), 97 states have call successors, (98) [2023-12-25 05:17:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1013 transitions. [2023-12-25 05:17:13,094 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1013 transitions. Word has length 113 [2023-12-25 05:17:13,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:13,096 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 1013 transitions. [2023-12-25 05:17:13,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:13,096 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1013 transitions. [2023-12-25 05:17:13,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:17:13,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:13,099 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:13,114 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 05:17:13,311 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 05:17:13,311 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:13,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:13,312 INFO L85 PathProgramCache]: Analyzing trace with hash 639407843, now seen corresponding path program 1 times [2023-12-25 05:17:13,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:13,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369307749] [2023-12-25 05:17:13,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:13,312 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 05:17:13,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:13,314 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 05:17:13,322 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 05:17:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:13,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:17:13,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:17:13,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:13,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:13,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369307749] [2023-12-25 05:17:13,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369307749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:13,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:13,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:17:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331143021] [2023-12-25 05:17:13,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:13,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:17:13,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:13,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:17:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:17:13,651 INFO L87 Difference]: Start difference. First operand 618 states and 1013 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:13,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:13,928 INFO L93 Difference]: Finished difference Result 1160 states and 1900 transitions. [2023-12-25 05:17:13,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:17:13,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2023-12-25 05:17:13,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:13,933 INFO L225 Difference]: With dead ends: 1160 [2023-12-25 05:17:13,933 INFO L226 Difference]: Without dead ends: 628 [2023-12-25 05:17:13,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 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 05:17:13,936 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 96 mSDsluCounter, 4495 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 5414 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:13,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 5414 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:17:13,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2023-12-25 05:17:13,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 624. [2023-12-25 05:17:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 493 states have (on average 1.6592292089249492) internal successors, (818), 512 states have internal predecessors, (818), 101 states have call successors, (101), 28 states have call predecessors, (101), 29 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2023-12-25 05:17:13,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 1021 transitions. [2023-12-25 05:17:13,956 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 1021 transitions. Word has length 114 [2023-12-25 05:17:13,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:13,956 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 1021 transitions. [2023-12-25 05:17:13,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:13,956 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 1021 transitions. [2023-12-25 05:17:13,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:17:13,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:13,960 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:13,972 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 05:17:14,171 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 05:17:14,172 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:14,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:14,172 INFO L85 PathProgramCache]: Analyzing trace with hash 774198110, now seen corresponding path program 1 times [2023-12-25 05:17:14,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:14,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660327113] [2023-12-25 05:17:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:14,173 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 05:17:14,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:14,174 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 05:17:14,178 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 05:17:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:14,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:17:14,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:14,480 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 05:17:14,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:14,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:14,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660327113] [2023-12-25 05:17:14,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660327113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:14,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:14,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:17:14,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200300752] [2023-12-25 05:17:14,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:14,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:17:14,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:14,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:17:14,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:17:14,483 INFO L87 Difference]: Start difference. First operand 624 states and 1021 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:14,622 INFO L93 Difference]: Finished difference Result 1222 states and 2003 transitions. [2023-12-25 05:17:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:17:14,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2023-12-25 05:17:14,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:14,625 INFO L225 Difference]: With dead ends: 1222 [2023-12-25 05:17:14,625 INFO L226 Difference]: Without dead ends: 607 [2023-12-25 05:17:14,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 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 05:17:14,629 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 24 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:14,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2738 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:17:14,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2023-12-25 05:17:14,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2023-12-25 05:17:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 479 states have (on average 1.653444676409186) internal successors, (792), 496 states have internal predecessors, (792), 100 states have call successors, (100), 28 states have call predecessors, (100), 27 states have return successors, (98), 95 states have call predecessors, (98), 97 states have call successors, (98) [2023-12-25 05:17:14,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 990 transitions. [2023-12-25 05:17:14,646 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 990 transitions. Word has length 115 [2023-12-25 05:17:14,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:14,647 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 990 transitions. [2023-12-25 05:17:14,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:14,647 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 990 transitions. [2023-12-25 05:17:14,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:17:14,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:14,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:14,663 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 05:17:14,861 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 05:17:14,861 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:14,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1248052851, now seen corresponding path program 1 times [2023-12-25 05:17:14,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:14,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857944231] [2023-12-25 05:17:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:14,863 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 05:17:14,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:14,865 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 05:17:14,870 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 05:17:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:15,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:17:15,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:15,267 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:17:15,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:15,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:15,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857944231] [2023-12-25 05:17:15,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857944231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:15,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:15,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:17:15,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847573254] [2023-12-25 05:17:15,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:15,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:17:15,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:15,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:17:15,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:17:15,269 INFO L87 Difference]: Start difference. First operand 607 states and 990 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:15,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:15,524 INFO L93 Difference]: Finished difference Result 1143 states and 1868 transitions. [2023-12-25 05:17:15,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:17:15,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2023-12-25 05:17:15,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:15,528 INFO L225 Difference]: With dead ends: 1143 [2023-12-25 05:17:15,528 INFO L226 Difference]: Without dead ends: 600 [2023-12-25 05:17:15,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 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 05:17:15,531 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 85 mSDsluCounter, 4409 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 5308 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:15,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 5308 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:17:15,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2023-12-25 05:17:15,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 598. [2023-12-25 05:17:15,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 470 states have (on average 1.651063829787234) internal successors, (776), 487 states have internal predecessors, (776), 100 states have call successors, (100), 28 states have call predecessors, (100), 27 states have return successors, (98), 95 states have call predecessors, (98), 97 states have call successors, (98) [2023-12-25 05:17:15,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 974 transitions. [2023-12-25 05:17:15,549 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 974 transitions. Word has length 116 [2023-12-25 05:17:15,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:15,549 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 974 transitions. [2023-12-25 05:17:15,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:15,550 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 974 transitions. [2023-12-25 05:17:15,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:17:15,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:15,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:15,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:17:15,763 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 05:17:15,764 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:15,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:15,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1583536681, now seen corresponding path program 1 times [2023-12-25 05:17:15,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:15,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797910164] [2023-12-25 05:17:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:15,765 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 05:17:15,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:15,766 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 05:17:15,766 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 05:17:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:16,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:17:16,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:17:16,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:16,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:16,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797910164] [2023-12-25 05:17:16,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797910164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:16,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:16,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:17:16,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718548955] [2023-12-25 05:17:16,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:16,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:17:16,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:16,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:17:16,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:17:16,100 INFO L87 Difference]: Start difference. First operand 598 states and 974 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:16,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:16,321 INFO L93 Difference]: Finished difference Result 1134 states and 1852 transitions. [2023-12-25 05:17:16,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:17:16,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2023-12-25 05:17:16,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:16,325 INFO L225 Difference]: With dead ends: 1134 [2023-12-25 05:17:16,325 INFO L226 Difference]: Without dead ends: 587 [2023-12-25 05:17:16,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 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 05:17:16,328 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 97 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 5244 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:16,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 5244 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:17:16,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-12-25 05:17:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2023-12-25 05:17:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 457 states have (on average 1.6345733041575492) internal successors, (747), 474 states have internal predecessors, (747), 100 states have call successors, (100), 28 states have call predecessors, (100), 27 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:17:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 944 transitions. [2023-12-25 05:17:16,346 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 944 transitions. Word has length 116 [2023-12-25 05:17:16,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:16,346 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 944 transitions. [2023-12-25 05:17:16,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:17:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 944 transitions. [2023-12-25 05:17:16,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:17:16,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:16,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:16,367 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 05:17:16,560 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 05:17:16,561 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:16,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:16,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1333065076, now seen corresponding path program 1 times [2023-12-25 05:17:16,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:16,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437175739] [2023-12-25 05:17:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:16,562 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 05:17:16,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:16,563 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 05:17:16,565 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 (17)] Waiting until timeout for monitored process [2023-12-25 05:17:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:16,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:17:16,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:16,865 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:17:16,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:16,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:16,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437175739] [2023-12-25 05:17:16,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437175739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:16,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:16,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:17:16,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978039696] [2023-12-25 05:17:16,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:16,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:17:16,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:16,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:17:16,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:17:16,867 INFO L87 Difference]: Start difference. First operand 585 states and 944 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:17,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:17,056 INFO L93 Difference]: Finished difference Result 1183 states and 1907 transitions. [2023-12-25 05:17:17,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:17:17,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2023-12-25 05:17:17,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:17,060 INFO L225 Difference]: With dead ends: 1183 [2023-12-25 05:17:17,060 INFO L226 Difference]: Without dead ends: 585 [2023-12-25 05:17:17,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 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 05:17:17,064 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 74 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:17,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2553 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:17:17,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2023-12-25 05:17:17,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2023-12-25 05:17:17,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 457 states have (on average 1.6170678336980306) internal successors, (739), 473 states have internal predecessors, (739), 100 states have call successors, (100), 29 states have call predecessors, (100), 27 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:17:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 936 transitions. [2023-12-25 05:17:17,101 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 936 transitions. Word has length 118 [2023-12-25 05:17:17,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:17,101 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 936 transitions. [2023-12-25 05:17:17,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:17,101 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 936 transitions. [2023-12-25 05:17:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 05:17:17,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:17,105 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:17,123 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 05:17:17,316 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 05:17:17,317 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:17,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:17,317 INFO L85 PathProgramCache]: Analyzing trace with hash -655690685, now seen corresponding path program 1 times [2023-12-25 05:17:17,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:17,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258048685] [2023-12-25 05:17:17,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:17,318 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 05:17:17,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:17,319 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 05:17:17,320 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 05:17:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:17,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:17:17,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:17:17,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:17,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:17,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258048685] [2023-12-25 05:17:17,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258048685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:17,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:17,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:17:17,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133935603] [2023-12-25 05:17:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:17,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:17:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:17,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:17:17,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:17:17,832 INFO L87 Difference]: Start difference. First operand 585 states and 936 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:18,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:18,555 INFO L93 Difference]: Finished difference Result 1637 states and 2681 transitions. [2023-12-25 05:17:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:17:18,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2023-12-25 05:17:18,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:18,562 INFO L225 Difference]: With dead ends: 1637 [2023-12-25 05:17:18,562 INFO L226 Difference]: Without dead ends: 1109 [2023-12-25 05:17:18,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 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 05:17:18,565 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 837 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:18,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2423 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:17:18,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2023-12-25 05:17:18,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1044. [2023-12-25 05:17:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 827 states have (on average 1.6420798065296252) internal successors, (1358), 851 states have internal predecessors, (1358), 171 states have call successors, (171), 48 states have call predecessors, (171), 45 states have return successors, (172), 158 states have call predecessors, (172), 167 states have call successors, (172) [2023-12-25 05:17:18,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1701 transitions. [2023-12-25 05:17:18,601 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1701 transitions. Word has length 119 [2023-12-25 05:17:18,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:18,602 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1701 transitions. [2023-12-25 05:17:18,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:18,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1701 transitions. [2023-12-25 05:17:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:17:18,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:18,606 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:18,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:17:18,816 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 05:17:18,817 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:18,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:18,817 INFO L85 PathProgramCache]: Analyzing trace with hash -160446933, now seen corresponding path program 1 times [2023-12-25 05:17:18,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:18,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438037278] [2023-12-25 05:17:18,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:18,818 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 05:17:18,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:18,819 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 05:17:18,820 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 05:17:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:19,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:17:19,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:17:19,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:17:19,516 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:17:19,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:19,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438037278] [2023-12-25 05:17:19,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438037278] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 05:17:19,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 05:17:19,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2023-12-25 05:17:19,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906759385] [2023-12-25 05:17:19,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:19,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:17:19,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:19,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:17:19,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:17:19,518 INFO L87 Difference]: Start difference. First operand 1044 states and 1701 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:17:21,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:21,242 INFO L93 Difference]: Finished difference Result 2958 states and 4979 transitions. [2023-12-25 05:17:21,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 05:17:21,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 121 [2023-12-25 05:17:21,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:21,254 INFO L225 Difference]: With dead ends: 2958 [2023-12-25 05:17:21,255 INFO L226 Difference]: Without dead ends: 1971 [2023-12-25 05:17:21,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:17:21,265 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 2194 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:21,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 3695 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 05:17:21,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2023-12-25 05:17:21,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1959. [2023-12-25 05:17:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1959 states, 1549 states have (on average 1.6668818592640413) internal successors, (2582), 1597 states have internal predecessors, (2582), 324 states have call successors, (324), 84 states have call predecessors, (324), 85 states have return successors, (383), 305 states have call predecessors, (383), 318 states have call successors, (383) [2023-12-25 05:17:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3289 transitions. [2023-12-25 05:17:21,397 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3289 transitions. Word has length 121 [2023-12-25 05:17:21,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:21,397 INFO L495 AbstractCegarLoop]: Abstraction has 1959 states and 3289 transitions. [2023-12-25 05:17:21,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:17:21,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3289 transitions. [2023-12-25 05:17:21,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:17:21,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:21,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:21,412 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 05:17:21,612 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 05:17:21,612 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:21,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:21,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1639588007, now seen corresponding path program 1 times [2023-12-25 05:17:21,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:21,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577392916] [2023-12-25 05:17:21,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:21,614 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 05:17:21,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:21,615 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 05:17:21,619 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 05:17:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:21,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:17:21,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:17:22,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:22,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:22,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577392916] [2023-12-25 05:17:22,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577392916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:22,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:22,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:17:22,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609255778] [2023-12-25 05:17:22,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:22,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:17:22,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:22,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:17:22,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:17:22,005 INFO L87 Difference]: Start difference. First operand 1959 states and 3289 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:22,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:22,982 INFO L93 Difference]: Finished difference Result 5582 states and 9521 transitions. [2023-12-25 05:17:22,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:17:22,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-12-25 05:17:22,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:23,004 INFO L225 Difference]: With dead ends: 5582 [2023-12-25 05:17:23,005 INFO L226 Difference]: Without dead ends: 3680 [2023-12-25 05:17:23,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 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 05:17:23,019 INFO L413 NwaCegarLoop]: 1019 mSDtfsCounter, 736 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:23,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 3421 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 05:17:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3680 states. [2023-12-25 05:17:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3680 to 3660. [2023-12-25 05:17:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 2881 states have (on average 1.646650468587296) internal successors, (4744), 2975 states have internal predecessors, (4744), 615 states have call successors, (615), 166 states have call predecessors, (615), 163 states have return successors, (735), 570 states have call predecessors, (735), 605 states have call successors, (735) [2023-12-25 05:17:23,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 6094 transitions. [2023-12-25 05:17:23,196 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 6094 transitions. Word has length 122 [2023-12-25 05:17:23,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:23,197 INFO L495 AbstractCegarLoop]: Abstraction has 3660 states and 6094 transitions. [2023-12-25 05:17:23,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:17:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 6094 transitions. [2023-12-25 05:17:23,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:17:23,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:23,201 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:23,211 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 05:17:23,411 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 05:17:23,412 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:23,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:23,412 INFO L85 PathProgramCache]: Analyzing trace with hash -94446459, now seen corresponding path program 1 times [2023-12-25 05:17:23,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:23,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726206068] [2023-12-25 05:17:23,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:23,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:17:23,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:23,414 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 05:17:23,415 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 05:17:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:23,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:17:23,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:17:23,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:23,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:23,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726206068] [2023-12-25 05:17:23,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726206068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:23,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:23,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:17:23,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497010992] [2023-12-25 05:17:23,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:23,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:17:23,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:23,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:17:23,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:17:23,803 INFO L87 Difference]: Start difference. First operand 3660 states and 6094 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:24,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:24,641 INFO L93 Difference]: Finished difference Result 9160 states and 15526 transitions. [2023-12-25 05:17:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:17:24,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2023-12-25 05:17:24,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:24,677 INFO L225 Difference]: With dead ends: 9160 [2023-12-25 05:17:24,678 INFO L226 Difference]: Without dead ends: 5557 [2023-12-25 05:17:24,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 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 05:17:24,699 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 846 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 4401 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:24,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 4401 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:17:24,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5557 states. [2023-12-25 05:17:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5557 to 5541. [2023-12-25 05:17:24,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5541 states, 4338 states have (on average 1.6339326878745966) internal successors, (7088), 4490 states have internal predecessors, (7088), 944 states have call successors, (944), 254 states have call predecessors, (944), 258 states have return successors, (1235), 898 states have call predecessors, (1235), 930 states have call successors, (1235) [2023-12-25 05:17:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 9267 transitions. [2023-12-25 05:17:24,992 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 9267 transitions. Word has length 128 [2023-12-25 05:17:24,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:24,992 INFO L495 AbstractCegarLoop]: Abstraction has 5541 states and 9267 transitions. [2023-12-25 05:17:24,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 9267 transitions. [2023-12-25 05:17:24,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 05:17:24,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:24,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:25,011 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 05:17:25,208 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 05:17:25,208 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:25,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:25,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1480055188, now seen corresponding path program 1 times [2023-12-25 05:17:25,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:25,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611946895] [2023-12-25 05:17:25,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:25,210 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 05:17:25,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:25,211 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 05:17:25,243 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 05:17:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:25,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:17:25,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:17:25,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:25,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:25,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611946895] [2023-12-25 05:17:25,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611946895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:25,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:25,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:17:25,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733065624] [2023-12-25 05:17:25,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:25,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:17:25,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:25,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:17:25,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:17:25,617 INFO L87 Difference]: Start difference. First operand 5541 states and 9267 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:26,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:26,092 INFO L93 Difference]: Finished difference Result 14763 states and 25488 transitions. [2023-12-25 05:17:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:17:26,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2023-12-25 05:17:26,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:26,147 INFO L225 Difference]: With dead ends: 14763 [2023-12-25 05:17:26,147 INFO L226 Difference]: Without dead ends: 9279 [2023-12-25 05:17:26,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:17:26,179 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 831 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:26,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1765 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:17:26,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9279 states. [2023-12-25 05:17:26,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9279 to 9275. [2023-12-25 05:17:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9275 states, 7232 states have (on average 1.6274889380530972) internal successors, (11770), 7500 states have internal predecessors, (11770), 1606 states have call successors, (1606), 430 states have call predecessors, (1606), 436 states have return successors, (2426), 1546 states have call predecessors, (2426), 1584 states have call successors, (2426) [2023-12-25 05:17:26,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9275 states to 9275 states and 15802 transitions. [2023-12-25 05:17:26,770 INFO L78 Accepts]: Start accepts. Automaton has 9275 states and 15802 transitions. Word has length 129 [2023-12-25 05:17:26,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:26,770 INFO L495 AbstractCegarLoop]: Abstraction has 9275 states and 15802 transitions. [2023-12-25 05:17:26,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 9275 states and 15802 transitions. [2023-12-25 05:17:26,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 05:17:26,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:26,775 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:26,789 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 05:17:26,986 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 05:17:26,986 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:26,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:26,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1745251944, now seen corresponding path program 1 times [2023-12-25 05:17:26,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:26,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356799407] [2023-12-25 05:17:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:26,987 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 05:17:26,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:26,988 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 05:17:26,989 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 05:17:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:27,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:17:27,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:17:27,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:27,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:27,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356799407] [2023-12-25 05:17:27,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356799407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:27,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:27,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:17:27,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791242113] [2023-12-25 05:17:27,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:27,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:17:27,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:27,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:17:27,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:17:27,367 INFO L87 Difference]: Start difference. First operand 9275 states and 15802 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:28,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:28,211 INFO L93 Difference]: Finished difference Result 25985 states and 46596 transitions. [2023-12-25 05:17:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:17:28,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2023-12-25 05:17:28,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:28,301 INFO L225 Difference]: With dead ends: 25985 [2023-12-25 05:17:28,302 INFO L226 Difference]: Without dead ends: 16767 [2023-12-25 05:17:28,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:17:28,358 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 829 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:28,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1772 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:17:28,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16767 states. [2023-12-25 05:17:29,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16767 to 16763. [2023-12-25 05:17:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16763 states, 13036 states have (on average 1.6228904571954588) internal successors, (21156), 13536 states have internal predecessors, (21156), 2934 states have call successors, (2934), 782 states have call predecessors, (2934), 792 states have return successors, (5469), 2846 states have call predecessors, (5469), 2896 states have call successors, (5469) [2023-12-25 05:17:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16763 states to 16763 states and 29559 transitions. [2023-12-25 05:17:29,412 INFO L78 Accepts]: Start accepts. Automaton has 16763 states and 29559 transitions. Word has length 130 [2023-12-25 05:17:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:29,412 INFO L495 AbstractCegarLoop]: Abstraction has 16763 states and 29559 transitions. [2023-12-25 05:17:29,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 16763 states and 29559 transitions. [2023-12-25 05:17:29,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:17:29,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:29,417 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:29,428 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 05:17:29,627 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 05:17:29,628 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:29,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:29,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1337619993, now seen corresponding path program 1 times [2023-12-25 05:17:29,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:29,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68476188] [2023-12-25 05:17:29,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:29,629 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 05:17:29,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:29,631 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 05:17:29,663 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 05:17:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:29,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:17:29,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:17:30,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:30,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:30,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68476188] [2023-12-25 05:17:30,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68476188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:30,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:30,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:17:30,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702266130] [2023-12-25 05:17:30,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:30,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:17:30,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:30,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:17:30,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:17:30,022 INFO L87 Difference]: Start difference. First operand 16763 states and 29559 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:31,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:31,750 INFO L93 Difference]: Finished difference Result 48469 states and 92866 transitions. [2023-12-25 05:17:31,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:17:31,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2023-12-25 05:17:31,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:31,984 INFO L225 Difference]: With dead ends: 48469 [2023-12-25 05:17:31,985 INFO L226 Difference]: Without dead ends: 31763 [2023-12-25 05:17:32,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:17:32,178 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 825 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:32,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 1831 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:17:32,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31763 states. [2023-12-25 05:17:33,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31763 to 31759. [2023-12-25 05:17:33,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31759 states, 24660 states have (on average 1.61889699918897) internal successors, (39922), 25624 states have internal predecessors, (39922), 5594 states have call successors, (5594), 1486 states have call predecessors, (5594), 1504 states have return successors, (13832), 5450 states have call predecessors, (13832), 5524 states have call successors, (13832) [2023-12-25 05:17:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31759 states to 31759 states and 59348 transitions. [2023-12-25 05:17:34,458 INFO L78 Accepts]: Start accepts. Automaton has 31759 states and 59348 transitions. Word has length 131 [2023-12-25 05:17:34,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:34,459 INFO L495 AbstractCegarLoop]: Abstraction has 31759 states and 59348 transitions. [2023-12-25 05:17:34,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:34,459 INFO L276 IsEmpty]: Start isEmpty. Operand 31759 states and 59348 transitions. [2023-12-25 05:17:34,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:17:34,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:34,465 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:34,479 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 05:17:34,676 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 05:17:34,676 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:34,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:34,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1547134605, now seen corresponding path program 1 times [2023-12-25 05:17:34,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:34,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141370062] [2023-12-25 05:17:34,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:34,678 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 05:17:34,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:34,680 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 05:17:34,711 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 05:17:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:35,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:17:35,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:17:35,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:35,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:35,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141370062] [2023-12-25 05:17:35,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141370062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:35,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:35,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:17:35,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756055254] [2023-12-25 05:17:35,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:35,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:17:35,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:35,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:17:35,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:17:35,398 INFO L87 Difference]: Start difference. First operand 31759 states and 59348 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:39,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:39,933 INFO L93 Difference]: Finished difference Result 93477 states and 199768 transitions. [2023-12-25 05:17:39,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:17:39,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2023-12-25 05:17:39,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:40,677 INFO L225 Difference]: With dead ends: 93477 [2023-12-25 05:17:40,678 INFO L226 Difference]: Without dead ends: 61775 [2023-12-25 05:17:41,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:17:41,003 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 825 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:41,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 1818 Invalid, 59 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:17:41,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61775 states. [2023-12-25 05:17:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61775 to 61771. [2023-12-25 05:17:44,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61771 states, 47924 states have (on average 1.6148902428845673) internal successors, (77392), 49816 states have internal predecessors, (77392), 10918 states have call successors, (10918), 2894 states have call predecessors, (10918), 2928 states have return successors, (38707), 10662 states have call predecessors, (38707), 10784 states have call successors, (38707) [2023-12-25 05:17:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61771 states to 61771 states and 127017 transitions. [2023-12-25 05:17:46,134 INFO L78 Accepts]: Start accepts. Automaton has 61771 states and 127017 transitions. Word has length 132 [2023-12-25 05:17:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:17:46,135 INFO L495 AbstractCegarLoop]: Abstraction has 61771 states and 127017 transitions. [2023-12-25 05:17:46,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:17:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 61771 states and 127017 transitions. [2023-12-25 05:17:46,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:17:46,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:17:46,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:17:46,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:17:46,350 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 05:17:46,350 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:17:46,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:17:46,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1531615887, now seen corresponding path program 1 times [2023-12-25 05:17:46,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:17:46,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600714473] [2023-12-25 05:17:46,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:17:46,351 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 05:17:46,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:17:46,352 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 05:17:46,354 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 05:17:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:17:46,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:17:46,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:17:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:17:46,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:17:46,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:17:46,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600714473] [2023-12-25 05:17:46,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600714473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:17:46,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:17:46,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:17:46,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219087410] [2023-12-25 05:17:46,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:17:46,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:17:46,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:17:46,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:17:46,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:17:46,938 INFO L87 Difference]: Start difference. First operand 61771 states and 127017 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:17:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:17:54,672 INFO L93 Difference]: Finished difference Result 138443 states and 290429 transitions. [2023-12-25 05:17:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:17:54,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 132 [2023-12-25 05:17:54,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:17:55,585 INFO L225 Difference]: With dead ends: 138443 [2023-12-25 05:17:55,586 INFO L226 Difference]: Without dead ends: 100305 [2023-12-25 05:17:56,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:17:56,205 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 858 mSDsluCounter, 3610 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 4520 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:17:56,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 4520 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 05:17:56,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100305 states. [2023-12-25 05:18:00,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100305 to 99641. [2023-12-25 05:18:00,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99641 states, 77623 states have (on average 1.6072942298030224) internal successors, (124763), 80262 states have internal predecessors, (124763), 17017 states have call successors, (17017), 4569 states have call predecessors, (17017), 5000 states have return successors, (65895), 17245 states have call predecessors, (65895), 16817 states have call successors, (65895) [2023-12-25 05:18:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99641 states to 99641 states and 207675 transitions. [2023-12-25 05:18:03,209 INFO L78 Accepts]: Start accepts. Automaton has 99641 states and 207675 transitions. Word has length 132 [2023-12-25 05:18:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:18:03,210 INFO L495 AbstractCegarLoop]: Abstraction has 99641 states and 207675 transitions. [2023-12-25 05:18:03,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:18:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 99641 states and 207675 transitions. [2023-12-25 05:18:03,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:18:03,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:18:03,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:18:03,228 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 05:18:03,425 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 05:18:03,425 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:18:03,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:18:03,426 INFO L85 PathProgramCache]: Analyzing trace with hash -455217207, now seen corresponding path program 1 times [2023-12-25 05:18:03,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:18:03,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372822836] [2023-12-25 05:18:03,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:18:03,426 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 05:18:03,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:18:03,427 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 05:18:03,428 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 05:18:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:18:03,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:18:03,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:18:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:18:04,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:18:04,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:18:04,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372822836] [2023-12-25 05:18:04,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372822836] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:18:04,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:18:04,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:18:04,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406150836] [2023-12-25 05:18:04,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:18:04,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:18:04,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:18:04,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:18:04,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:04,081 INFO L87 Difference]: Start difference. First operand 99641 states and 207675 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:18:13,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:18:13,130 INFO L93 Difference]: Finished difference Result 172369 states and 356539 transitions. [2023-12-25 05:18:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:18:13,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2023-12-25 05:18:13,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:18:13,946 INFO L225 Difference]: With dead ends: 172369 [2023-12-25 05:18:13,946 INFO L226 Difference]: Without dead ends: 100773 [2023-12-25 05:18:14,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:18:14,659 INFO L413 NwaCegarLoop]: 1054 mSDtfsCounter, 764 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:18:14,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 2527 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:18:14,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100773 states.