/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_spec2_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:21:52,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:21:52,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:21:52,243 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:21:52,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:21:52,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:21:52,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:21:52,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:21:52,258 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:21:52,258 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:21:52,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:21:52,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:21:52,259 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:21:52,259 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:21:52,259 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:21:52,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:21:52,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:21:52,260 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:21:52,260 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:21:52,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:21:52,261 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:21:52,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:21:52,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:21:52,261 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:21:52,261 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:21:52,262 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:21:52,262 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:21:52,262 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:21:52,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:21:52,262 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:21:52,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:21:52,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:21:52,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:21:52,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:21:52,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:21:52,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:21:52,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:21:52,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:21:52,264 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:21:52,264 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:21:52,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:21:52,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:21:52,272 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:21:52,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:21:52,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:21:52,272 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:21:52,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:21:52,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:21:52,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:21:52,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:21:52,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:21:52,477 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:21:52,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product17.cil.c [2023-12-16 17:21:53,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:21:53,672 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:21:53,673 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product17.cil.c [2023-12-16 17:21:53,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/692b7484f/ed3db36fd55842dfb06caaf36fefd486/FLAGf6848c89b [2023-12-16 17:21:53,695 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/692b7484f/ed3db36fd55842dfb06caaf36fefd486 [2023-12-16 17:21:53,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:21:53,699 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:21:53,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:21:53,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:21:53,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:21:53,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:21:53" (1/1) ... [2023-12-16 17:21:53,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d01cb4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:53, skipping insertion in model container [2023-12-16 17:21:53,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:21:53" (1/1) ... [2023-12-16 17:21:53,748 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:21:53,955 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_spec2_product17.cil.c[17414,17427] [2023-12-16 17:21:54,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:21:54,175 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:21:54,186 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:21:54,206 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_spec2_product17.cil.c[17414,17427] [2023-12-16 17:21:54,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:21:54,272 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:21:54,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2023-12-16 17:21:54,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [716] [2023-12-16 17:21:54,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [725] [2023-12-16 17:21:54,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [846] [2023-12-16 17:21:54,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [884] [2023-12-16 17:21:54,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [983] [2023-12-16 17:21:54,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1337] [2023-12-16 17:21:54,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [2786] [2023-12-16 17:21:54,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2967] [2023-12-16 17:21:54,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3333] [2023-12-16 17:21:54,294 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_spec2_product17.cil.c[17414,17427] [2023-12-16 17:21:54,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:21:54,378 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:21:54,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54 WrapperNode [2023-12-16 17:21:54,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:21:54,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:21:54,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:21:54,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:21:54,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,448 INFO L138 Inliner]: procedures = 92, calls = 332, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 759 [2023-12-16 17:21:54,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:21:54,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:21:54,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:21:54,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:21:54,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,489 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]. [2023-12-16 17:21:54,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:21:54,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:21:54,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:21:54,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:21:54,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (1/1) ... [2023-12-16 17:21:54,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:21:54,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:21:54,584 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) [2023-12-16 17:21:54,593 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 [2023-12-16 17:21:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:21:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 17:21:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 17:21:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 17:21:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 17:21:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 17:21:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 17:21:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 17:21:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 17:21:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 17:21:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 17:21:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:21:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:21:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:21:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:21:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-16 17:21:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-16 17:21:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 17:21:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 17:21:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 17:21:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 17:21:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 17:21:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 17:21:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-16 17:21:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 17:21:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 17:21:54,609 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 17:21:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 17:21:54,609 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 17:21:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 17:21:54,609 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 17:21:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 17:21:54,609 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 17:21:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 17:21:54,609 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 17:21:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 17:21:54,609 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 17:21:54,610 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 17:21:54,610 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 17:21:54,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 17:21:54,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:21:54,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:21:54,610 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 17:21:54,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 17:21:54,770 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:21:54,772 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:21:55,525 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:21:55,620 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:21:55,621 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:21:55,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:21:55 BoogieIcfgContainer [2023-12-16 17:21:55,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:21:55,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:21:55,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:21:55,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:21:55,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:21:53" (1/3) ... [2023-12-16 17:21:55,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97977f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:21:55, skipping insertion in model container [2023-12-16 17:21:55,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:21:54" (2/3) ... [2023-12-16 17:21:55,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97977f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:21:55, skipping insertion in model container [2023-12-16 17:21:55,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:21:55" (3/3) ... [2023-12-16 17:21:55,628 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product17.cil.c [2023-12-16 17:21:55,638 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:21:55,639 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:21:55,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:21:55,679 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;@718f18c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:21:55,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:21:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 511 states, 400 states have (on average 1.7475) internal successors, (699), 421 states have internal predecessors, (699), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:21:55,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 17:21:55,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:55,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:55,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:55,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:55,711 INFO L85 PathProgramCache]: Analyzing trace with hash 2069480681, now seen corresponding path program 1 times [2023-12-16 17:21:55,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:55,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615297214] [2023-12-16 17:21:55,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:55,722 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 [2023-12-16 17:21:55,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:55,724 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) [2023-12-16 17:21:55,727 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 [2023-12-16 17:21:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:55,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:21:55,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:56,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:56,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:56,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615297214] [2023-12-16 17:21:56,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615297214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:56,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:56,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:21:56,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115338215] [2023-12-16 17:21:56,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:56,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:21:56,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:56,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:21:56,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:21:56,042 INFO L87 Difference]: Start difference. First operand has 511 states, 400 states have (on average 1.7475) internal successors, (699), 421 states have internal predecessors, (699), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:21:56,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:56,118 INFO L93 Difference]: Finished difference Result 529 states and 902 transitions. [2023-12-16 17:21:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:21:56,125 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2023-12-16 17:21:56,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:56,138 INFO L225 Difference]: With dead ends: 529 [2023-12-16 17:21:56,139 INFO L226 Difference]: Without dead ends: 507 [2023-12-16 17:21:56,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:21:56,143 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:56,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 852 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:21:56,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-16 17:21:56,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-16 17:21:56,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 398 states have (on average 1.7386934673366834) internal successors, (692), 417 states have internal predecessors, (692), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:21:56,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 863 transitions. [2023-12-16 17:21:56,195 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 863 transitions. Word has length 65 [2023-12-16 17:21:56,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:56,200 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 863 transitions. [2023-12-16 17:21:56,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:21:56,200 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 863 transitions. [2023-12-16 17:21:56,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 17:21:56,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:56,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:56,212 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 [2023-12-16 17:21:56,413 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 [2023-12-16 17:21:56,413 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:56,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:56,414 INFO L85 PathProgramCache]: Analyzing trace with hash 93624336, now seen corresponding path program 1 times [2023-12-16 17:21:56,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:56,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793711246] [2023-12-16 17:21:56,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:56,415 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 [2023-12-16 17:21:56,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:56,415 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) [2023-12-16 17:21:56,417 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 [2023-12-16 17:21:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:56,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:56,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:56,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:56,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:56,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793711246] [2023-12-16 17:21:56,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793711246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:56,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:56,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:56,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868815449] [2023-12-16 17:21:56,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:56,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:56,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:56,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:56,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:56,741 INFO L87 Difference]: Start difference. First operand 507 states and 863 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:56,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:56,888 INFO L93 Difference]: Finished difference Result 1002 states and 1708 transitions. [2023-12-16 17:21:56,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:56,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2023-12-16 17:21:56,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:56,891 INFO L225 Difference]: With dead ends: 1002 [2023-12-16 17:21:56,891 INFO L226 Difference]: Without dead ends: 507 [2023-12-16 17:21:56,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:56,895 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 14 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:56,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2506 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:56,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-16 17:21:56,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-16 17:21:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 398 states have (on average 1.736180904522613) internal successors, (691), 417 states have internal predecessors, (691), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:21:56,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 862 transitions. [2023-12-16 17:21:56,913 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 862 transitions. Word has length 66 [2023-12-16 17:21:56,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:56,913 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 862 transitions. [2023-12-16 17:21:56,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:56,913 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 862 transitions. [2023-12-16 17:21:56,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 17:21:56,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:56,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:56,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:57,121 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 [2023-12-16 17:21:57,121 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:57,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:57,122 INFO L85 PathProgramCache]: Analyzing trace with hash 587764296, now seen corresponding path program 1 times [2023-12-16 17:21:57,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:57,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639907128] [2023-12-16 17:21:57,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:57,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:21:57,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:57,123 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) [2023-12-16 17:21:57,127 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 [2023-12-16 17:21:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:57,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:57,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:57,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:57,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:57,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639907128] [2023-12-16 17:21:57,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639907128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:57,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:57,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:57,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033068796] [2023-12-16 17:21:57,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:57,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:57,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:57,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:57,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:57,377 INFO L87 Difference]: Start difference. First operand 507 states and 862 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:57,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:57,453 INFO L93 Difference]: Finished difference Result 1002 states and 1707 transitions. [2023-12-16 17:21:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:57,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2023-12-16 17:21:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:57,456 INFO L225 Difference]: With dead ends: 1002 [2023-12-16 17:21:57,456 INFO L226 Difference]: Without dead ends: 507 [2023-12-16 17:21:57,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:57,458 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 12 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:57,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2506 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:21:57,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-16 17:21:57,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-16 17:21:57,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 398 states have (on average 1.7336683417085428) internal successors, (690), 417 states have internal predecessors, (690), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:21:57,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 861 transitions. [2023-12-16 17:21:57,472 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 861 transitions. Word has length 67 [2023-12-16 17:21:57,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:57,472 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 861 transitions. [2023-12-16 17:21:57,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:57,473 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 861 transitions. [2023-12-16 17:21:57,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 17:21:57,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:57,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:57,483 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 [2023-12-16 17:21:57,680 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 [2023-12-16 17:21:57,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:57,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:57,681 INFO L85 PathProgramCache]: Analyzing trace with hash -870118260, now seen corresponding path program 1 times [2023-12-16 17:21:57,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:57,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582823413] [2023-12-16 17:21:57,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:57,682 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 [2023-12-16 17:21:57,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:57,683 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) [2023-12-16 17:21:57,685 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 [2023-12-16 17:21:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:57,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:57,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:57,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:57,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:57,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:57,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582823413] [2023-12-16 17:21:57,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582823413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:57,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:57,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:57,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122515852] [2023-12-16 17:21:57,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:57,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:57,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:57,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:57,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:57,923 INFO L87 Difference]: Start difference. First operand 507 states and 861 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:57,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:57,995 INFO L93 Difference]: Finished difference Result 1002 states and 1706 transitions. [2023-12-16 17:21:57,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:57,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2023-12-16 17:21:57,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:57,998 INFO L225 Difference]: With dead ends: 1002 [2023-12-16 17:21:57,998 INFO L226 Difference]: Without dead ends: 507 [2023-12-16 17:21:58,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:58,000 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 10 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:58,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2506 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:21:58,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-16 17:21:58,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-16 17:21:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 398 states have (on average 1.7311557788944723) internal successors, (689), 417 states have internal predecessors, (689), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:21:58,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 860 transitions. [2023-12-16 17:21:58,012 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 860 transitions. Word has length 68 [2023-12-16 17:21:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:58,013 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 860 transitions. [2023-12-16 17:21:58,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 860 transitions. [2023-12-16 17:21:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 17:21:58,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:58,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:58,023 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 [2023-12-16 17:21:58,221 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 [2023-12-16 17:21:58,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:58,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:58,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1583810628, now seen corresponding path program 1 times [2023-12-16 17:21:58,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:58,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000199693] [2023-12-16 17:21:58,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:58,222 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 [2023-12-16 17:21:58,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:58,223 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) [2023-12-16 17:21:58,227 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 [2023-12-16 17:21:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:58,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:58,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:58,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:58,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:58,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:58,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000199693] [2023-12-16 17:21:58,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000199693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:58,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:58,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:58,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876535408] [2023-12-16 17:21:58,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:58,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:58,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:58,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:58,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:58,467 INFO L87 Difference]: Start difference. First operand 507 states and 860 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:58,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:58,567 INFO L93 Difference]: Finished difference Result 1002 states and 1705 transitions. [2023-12-16 17:21:58,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:58,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2023-12-16 17:21:58,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:58,570 INFO L225 Difference]: With dead ends: 1002 [2023-12-16 17:21:58,571 INFO L226 Difference]: Without dead ends: 507 [2023-12-16 17:21:58,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:58,573 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 8 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:58,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2506 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:58,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-16 17:21:58,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-16 17:21:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 398 states have (on average 1.728643216080402) internal successors, (688), 417 states have internal predecessors, (688), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:21:58,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 859 transitions. [2023-12-16 17:21:58,589 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 859 transitions. Word has length 69 [2023-12-16 17:21:58,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:58,589 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 859 transitions. [2023-12-16 17:21:58,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:58,589 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 859 transitions. [2023-12-16 17:21:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 17:21:58,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:58,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:58,597 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 [2023-12-16 17:21:58,797 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 [2023-12-16 17:21:58,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:58,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash 749842696, now seen corresponding path program 1 times [2023-12-16 17:21:58,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:58,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174676538] [2023-12-16 17:21:58,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:58,798 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 [2023-12-16 17:21:58,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:58,799 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) [2023-12-16 17:21:58,800 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 [2023-12-16 17:21:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:59,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:59,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:59,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:59,048 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:59,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174676538] [2023-12-16 17:21:59,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174676538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:59,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:59,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:59,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699933278] [2023-12-16 17:21:59,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:59,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:59,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:59,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:59,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:59,049 INFO L87 Difference]: Start difference. First operand 507 states and 859 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:59,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:59,110 INFO L93 Difference]: Finished difference Result 1002 states and 1704 transitions. [2023-12-16 17:21:59,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:59,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2023-12-16 17:21:59,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:59,113 INFO L225 Difference]: With dead ends: 1002 [2023-12-16 17:21:59,113 INFO L226 Difference]: Without dead ends: 507 [2023-12-16 17:21:59,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:59,115 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 6 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:59,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2506 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:21:59,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-16 17:21:59,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-16 17:21:59,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 398 states have (on average 1.7261306532663316) internal successors, (687), 417 states have internal predecessors, (687), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:21:59,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 858 transitions. [2023-12-16 17:21:59,126 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 858 transitions. Word has length 70 [2023-12-16 17:21:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:59,126 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 858 transitions. [2023-12-16 17:21:59,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 858 transitions. [2023-12-16 17:21:59,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 17:21:59,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:59,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:59,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:59,334 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 [2023-12-16 17:21:59,334 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:59,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:59,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1171200415, now seen corresponding path program 1 times [2023-12-16 17:21:59,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:59,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039583726] [2023-12-16 17:21:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:59,335 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 [2023-12-16 17:21:59,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:59,336 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) [2023-12-16 17:21:59,338 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 [2023-12-16 17:21:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:59,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:59,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:59,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:59,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:59,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:59,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039583726] [2023-12-16 17:21:59,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039583726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:59,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:59,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:59,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654361680] [2023-12-16 17:21:59,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:59,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:59,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:59,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:59,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:59,571 INFO L87 Difference]: Start difference. First operand 507 states and 858 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:59,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:59,632 INFO L93 Difference]: Finished difference Result 1002 states and 1703 transitions. [2023-12-16 17:21:59,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:59,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2023-12-16 17:21:59,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:59,635 INFO L225 Difference]: With dead ends: 1002 [2023-12-16 17:21:59,635 INFO L226 Difference]: Without dead ends: 507 [2023-12-16 17:21:59,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:59,638 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 4 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:59,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2506 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:21:59,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-16 17:21:59,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-16 17:21:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 398 states have (on average 1.7236180904522613) internal successors, (686), 417 states have internal predecessors, (686), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:21:59,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 857 transitions. [2023-12-16 17:21:59,649 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 857 transitions. Word has length 71 [2023-12-16 17:21:59,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:59,649 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 857 transitions. [2023-12-16 17:21:59,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:21:59,649 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 857 transitions. [2023-12-16 17:21:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 17:21:59,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:59,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:59,660 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 [2023-12-16 17:21:59,856 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 [2023-12-16 17:21:59,857 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:59,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:59,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1070288448, now seen corresponding path program 1 times [2023-12-16 17:21:59,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:59,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234110327] [2023-12-16 17:21:59,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:59,858 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 [2023-12-16 17:21:59,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:59,859 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) [2023-12-16 17:21:59,859 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 [2023-12-16 17:22:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:00,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:22:00,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:00,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:00,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:00,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234110327] [2023-12-16 17:22:00,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234110327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:00,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:00,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:00,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061855859] [2023-12-16 17:22:00,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:00,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:00,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:00,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:00,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:00,107 INFO L87 Difference]: Start difference. First operand 507 states and 857 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:00,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:00,230 INFO L93 Difference]: Finished difference Result 962 states and 1627 transitions. [2023-12-16 17:22:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:22:00,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2023-12-16 17:22:00,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:00,255 INFO L225 Difference]: With dead ends: 962 [2023-12-16 17:22:00,255 INFO L226 Difference]: Without dead ends: 501 [2023-12-16 17:22:00,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:00,257 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 115 mSDsluCounter, 4064 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4895 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:00,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4895 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:00,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-16 17:22:00,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-16 17:22:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 392 states have (on average 1.7168367346938775) internal successors, (673), 411 states have internal predecessors, (673), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:00,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 844 transitions. [2023-12-16 17:22:00,269 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 844 transitions. Word has length 71 [2023-12-16 17:22:00,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:00,270 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 844 transitions. [2023-12-16 17:22:00,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 844 transitions. [2023-12-16 17:22:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 17:22:00,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:00,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:00,279 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:00,477 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 [2023-12-16 17:22:00,478 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:00,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:00,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1764121514, now seen corresponding path program 1 times [2023-12-16 17:22:00,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:00,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228804442] [2023-12-16 17:22:00,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:00,479 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 [2023-12-16 17:22:00,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:00,480 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) [2023-12-16 17:22:00,480 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 [2023-12-16 17:22:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:00,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:00,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:00,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:00,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:00,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228804442] [2023-12-16 17:22:00,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228804442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:00,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:00,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:00,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167325085] [2023-12-16 17:22:00,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:00,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:00,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:00,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:00,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:00,729 INFO L87 Difference]: Start difference. First operand 501 states and 844 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:00,848 INFO L93 Difference]: Finished difference Result 956 states and 1614 transitions. [2023-12-16 17:22:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:00,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2023-12-16 17:22:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:00,851 INFO L225 Difference]: With dead ends: 956 [2023-12-16 17:22:00,851 INFO L226 Difference]: Without dead ends: 501 [2023-12-16 17:22:00,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:00,853 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 88 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:00,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2322 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:00,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-16 17:22:00,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-16 17:22:00,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 392 states have (on average 1.7066326530612246) internal successors, (669), 411 states have internal predecessors, (669), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:00,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 840 transitions. [2023-12-16 17:22:00,866 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 840 transitions. Word has length 72 [2023-12-16 17:22:00,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:00,866 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 840 transitions. [2023-12-16 17:22:00,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 840 transitions. [2023-12-16 17:22:00,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 17:22:00,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:00,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:00,876 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 [2023-12-16 17:22:01,074 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 [2023-12-16 17:22:01,075 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:01,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:01,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1340137373, now seen corresponding path program 1 times [2023-12-16 17:22:01,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:01,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238445656] [2023-12-16 17:22:01,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:01,076 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 [2023-12-16 17:22:01,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:01,077 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) [2023-12-16 17:22:01,083 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 [2023-12-16 17:22:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:01,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:01,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:01,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:01,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:01,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:01,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238445656] [2023-12-16 17:22:01,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238445656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:01,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:01,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:01,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224062389] [2023-12-16 17:22:01,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:01,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:01,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:01,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:01,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:01,314 INFO L87 Difference]: Start difference. First operand 501 states and 840 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:01,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:01,428 INFO L93 Difference]: Finished difference Result 956 states and 1610 transitions. [2023-12-16 17:22:01,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:01,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-12-16 17:22:01,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:01,434 INFO L225 Difference]: With dead ends: 956 [2023-12-16 17:22:01,434 INFO L226 Difference]: Without dead ends: 501 [2023-12-16 17:22:01,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:01,436 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 83 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:01,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2322 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:01,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-16 17:22:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-16 17:22:01,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 392 states have (on average 1.6964285714285714) internal successors, (665), 411 states have internal predecessors, (665), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 836 transitions. [2023-12-16 17:22:01,447 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 836 transitions. Word has length 73 [2023-12-16 17:22:01,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:01,447 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 836 transitions. [2023-12-16 17:22:01,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 836 transitions. [2023-12-16 17:22:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-16 17:22:01,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:01,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:01,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-16 17:22:01,654 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 [2023-12-16 17:22:01,655 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:01,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:01,655 INFO L85 PathProgramCache]: Analyzing trace with hash 174352975, now seen corresponding path program 1 times [2023-12-16 17:22:01,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:01,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324136339] [2023-12-16 17:22:01,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:01,656 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 [2023-12-16 17:22:01,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:01,656 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) [2023-12-16 17:22:01,657 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 [2023-12-16 17:22:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:01,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:01,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:01,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:01,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:01,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:01,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324136339] [2023-12-16 17:22:01,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324136339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:01,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:01,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:01,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465931345] [2023-12-16 17:22:01,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:01,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:01,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:01,908 INFO L87 Difference]: Start difference. First operand 501 states and 836 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:02,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:02,033 INFO L93 Difference]: Finished difference Result 956 states and 1606 transitions. [2023-12-16 17:22:02,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:02,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-12-16 17:22:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:02,040 INFO L225 Difference]: With dead ends: 956 [2023-12-16 17:22:02,040 INFO L226 Difference]: Without dead ends: 501 [2023-12-16 17:22:02,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:02,042 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 78 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:02,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2322 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:02,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-16 17:22:02,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-16 17:22:02,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 392 states have (on average 1.6862244897959184) internal successors, (661), 411 states have internal predecessors, (661), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:02,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 832 transitions. [2023-12-16 17:22:02,058 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 832 transitions. Word has length 74 [2023-12-16 17:22:02,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:02,059 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 832 transitions. [2023-12-16 17:22:02,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:02,059 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 832 transitions. [2023-12-16 17:22:02,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-16 17:22:02,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:02,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:02,074 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 [2023-12-16 17:22:02,269 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 [2023-12-16 17:22:02,269 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:02,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:02,269 INFO L85 PathProgramCache]: Analyzing trace with hash -720951601, now seen corresponding path program 1 times [2023-12-16 17:22:02,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:02,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795963150] [2023-12-16 17:22:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:02,270 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 [2023-12-16 17:22:02,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:02,271 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) [2023-12-16 17:22:02,284 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 [2023-12-16 17:22:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:02,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:22:02,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:02,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:02,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:02,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795963150] [2023-12-16 17:22:02,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795963150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:02,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:02,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:02,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749789318] [2023-12-16 17:22:02,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:02,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:02,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:02,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:02,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:02,526 INFO L87 Difference]: Start difference. First operand 501 states and 832 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:02,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:02,639 INFO L93 Difference]: Finished difference Result 956 states and 1602 transitions. [2023-12-16 17:22:02,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:22:02,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2023-12-16 17:22:02,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:02,641 INFO L225 Difference]: With dead ends: 956 [2023-12-16 17:22:02,642 INFO L226 Difference]: Without dead ends: 480 [2023-12-16 17:22:02,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:02,643 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 108 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 4760 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:02,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 4760 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:02,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-16 17:22:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-16 17:22:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 371 states have (on average 1.6900269541778976) internal successors, (627), 390 states have internal predecessors, (627), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:02,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 798 transitions. [2023-12-16 17:22:02,653 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 798 transitions. Word has length 74 [2023-12-16 17:22:02,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:02,653 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 798 transitions. [2023-12-16 17:22:02,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 798 transitions. [2023-12-16 17:22:02,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 17:22:02,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:02,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:02,660 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 [2023-12-16 17:22:02,860 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 [2023-12-16 17:22:02,860 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:02,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1158818456, now seen corresponding path program 1 times [2023-12-16 17:22:02,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:02,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025383361] [2023-12-16 17:22:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:02,861 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 [2023-12-16 17:22:02,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:02,862 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) [2023-12-16 17:22:02,862 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 [2023-12-16 17:22:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:03,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:03,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:03,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:03,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:03,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025383361] [2023-12-16 17:22:03,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025383361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:03,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:03,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:03,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432878638] [2023-12-16 17:22:03,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:03,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:03,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:03,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:03,081 INFO L87 Difference]: Start difference. First operand 480 states and 798 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:03,147 INFO L93 Difference]: Finished difference Result 935 states and 1568 transitions. [2023-12-16 17:22:03,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:03,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2023-12-16 17:22:03,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:03,150 INFO L225 Difference]: With dead ends: 935 [2023-12-16 17:22:03,150 INFO L226 Difference]: Without dead ends: 480 [2023-12-16 17:22:03,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:03,152 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 39 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:03,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2308 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:03,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-16 17:22:03,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-16 17:22:03,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 371 states have (on average 1.6873315363881403) internal successors, (626), 390 states have internal predecessors, (626), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:03,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 797 transitions. [2023-12-16 17:22:03,161 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 797 transitions. Word has length 75 [2023-12-16 17:22:03,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:03,161 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 797 transitions. [2023-12-16 17:22:03,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:03,162 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 797 transitions. [2023-12-16 17:22:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 17:22:03,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:03,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:03,172 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 [2023-12-16 17:22:03,368 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 [2023-12-16 17:22:03,369 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:03,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash -575191820, now seen corresponding path program 1 times [2023-12-16 17:22:03,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:03,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147395677] [2023-12-16 17:22:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:03,370 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 [2023-12-16 17:22:03,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:03,371 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) [2023-12-16 17:22:03,373 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 [2023-12-16 17:22:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:03,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:03,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:03,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:03,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:03,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:03,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147395677] [2023-12-16 17:22:03,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147395677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:03,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:03,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:03,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524464962] [2023-12-16 17:22:03,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:03,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:03,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:03,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:03,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:03,591 INFO L87 Difference]: Start difference. First operand 480 states and 797 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:03,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:03,661 INFO L93 Difference]: Finished difference Result 935 states and 1567 transitions. [2023-12-16 17:22:03,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:03,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2023-12-16 17:22:03,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:03,664 INFO L225 Difference]: With dead ends: 935 [2023-12-16 17:22:03,664 INFO L226 Difference]: Without dead ends: 480 [2023-12-16 17:22:03,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:03,665 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 37 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:03,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2308 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:03,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-16 17:22:03,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-16 17:22:03,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 371 states have (on average 1.6846361185983827) internal successors, (625), 390 states have internal predecessors, (625), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:03,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 796 transitions. [2023-12-16 17:22:03,677 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 796 transitions. Word has length 76 [2023-12-16 17:22:03,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:03,677 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 796 transitions. [2023-12-16 17:22:03,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:03,677 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 796 transitions. [2023-12-16 17:22:03,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 17:22:03,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:03,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:03,687 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 [2023-12-16 17:22:03,884 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 [2023-12-16 17:22:03,885 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:03,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:03,885 INFO L85 PathProgramCache]: Analyzing trace with hash -256466577, now seen corresponding path program 1 times [2023-12-16 17:22:03,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:03,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650260477] [2023-12-16 17:22:03,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:03,886 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 [2023-12-16 17:22:03,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:03,887 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) [2023-12-16 17:22:03,888 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 [2023-12-16 17:22:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:04,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:04,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:04,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:04,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:04,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650260477] [2023-12-16 17:22:04,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650260477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:04,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:04,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:04,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366033967] [2023-12-16 17:22:04,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:04,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:04,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:04,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:04,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:04,120 INFO L87 Difference]: Start difference. First operand 480 states and 796 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:04,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:04,182 INFO L93 Difference]: Finished difference Result 935 states and 1566 transitions. [2023-12-16 17:22:04,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:04,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2023-12-16 17:22:04,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:04,185 INFO L225 Difference]: With dead ends: 935 [2023-12-16 17:22:04,185 INFO L226 Difference]: Without dead ends: 480 [2023-12-16 17:22:04,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:04,187 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 35 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:04,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2308 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:04,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-16 17:22:04,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-16 17:22:04,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 371 states have (on average 1.6819407008086253) internal successors, (624), 390 states have internal predecessors, (624), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:04,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 795 transitions. [2023-12-16 17:22:04,197 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 795 transitions. Word has length 77 [2023-12-16 17:22:04,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:04,198 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 795 transitions. [2023-12-16 17:22:04,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:04,198 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 795 transitions. [2023-12-16 17:22:04,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 17:22:04,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:04,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:04,206 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 [2023-12-16 17:22:04,406 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 [2023-12-16 17:22:04,406 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:04,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:04,406 INFO L85 PathProgramCache]: Analyzing trace with hash -700367251, now seen corresponding path program 1 times [2023-12-16 17:22:04,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:04,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805076882] [2023-12-16 17:22:04,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:04,407 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 [2023-12-16 17:22:04,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:04,408 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) [2023-12-16 17:22:04,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:22:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:04,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:22:04,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:04,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:04,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:04,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:04,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805076882] [2023-12-16 17:22:04,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805076882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:04,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:04,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:22:04,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760939850] [2023-12-16 17:22:04,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:04,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:22:04,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:04,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:22:04,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:04,698 INFO L87 Difference]: Start difference. First operand 480 states and 795 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:04,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:04,831 INFO L93 Difference]: Finished difference Result 929 states and 1554 transitions. [2023-12-16 17:22:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:22:04,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 77 [2023-12-16 17:22:04,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:04,835 INFO L225 Difference]: With dead ends: 929 [2023-12-16 17:22:04,835 INFO L226 Difference]: Without dead ends: 480 [2023-12-16 17:22:04,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:22:04,836 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 24 mSDsluCounter, 4585 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:04,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5352 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:04,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-16 17:22:04,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-16 17:22:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 371 states have (on average 1.679245283018868) internal successors, (623), 390 states have internal predecessors, (623), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 794 transitions. [2023-12-16 17:22:04,846 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 794 transitions. Word has length 77 [2023-12-16 17:22:04,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:04,847 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 794 transitions. [2023-12-16 17:22:04,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 794 transitions. [2023-12-16 17:22:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 17:22:04,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:04,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:04,856 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 [2023-12-16 17:22:05,054 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 [2023-12-16 17:22:05,054 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:05,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:05,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1661979753, now seen corresponding path program 1 times [2023-12-16 17:22:05,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:05,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519604434] [2023-12-16 17:22:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:05,055 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 [2023-12-16 17:22:05,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:05,056 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) [2023-12-16 17:22:05,058 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 [2023-12-16 17:22:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:05,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:22:05,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:05,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:05,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:05,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519604434] [2023-12-16 17:22:05,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519604434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:05,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:05,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:22:05,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410957269] [2023-12-16 17:22:05,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:05,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:22:05,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:05,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:22:05,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:22:05,443 INFO L87 Difference]: Start difference. First operand 480 states and 794 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:07,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:07,032 INFO L93 Difference]: Finished difference Result 927 states and 1568 transitions. [2023-12-16 17:22:07,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:22:07,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2023-12-16 17:22:07,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:07,035 INFO L225 Difference]: With dead ends: 927 [2023-12-16 17:22:07,035 INFO L226 Difference]: Without dead ends: 485 [2023-12-16 17:22:07,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:22:07,037 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1238 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 2495 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:07,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 1450 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2495 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 17:22:07,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-12-16 17:22:07,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 484. [2023-12-16 17:22:07,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 374 states have (on average 1.6737967914438503) internal successors, (626), 393 states have internal predecessors, (626), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (99), 82 states have call predecessors, (99), 83 states have call successors, (99) [2023-12-16 17:22:07,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 813 transitions. [2023-12-16 17:22:07,054 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 813 transitions. Word has length 78 [2023-12-16 17:22:07,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:07,055 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 813 transitions. [2023-12-16 17:22:07,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:07,055 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 813 transitions. [2023-12-16 17:22:07,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 17:22:07,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:07,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:07,063 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 [2023-12-16 17:22:07,263 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 [2023-12-16 17:22:07,263 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:07,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:07,263 INFO L85 PathProgramCache]: Analyzing trace with hash 699865490, now seen corresponding path program 1 times [2023-12-16 17:22:07,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:07,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502945992] [2023-12-16 17:22:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:07,264 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 [2023-12-16 17:22:07,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:07,265 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) [2023-12-16 17:22:07,280 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 [2023-12-16 17:22:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:07,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:22:07,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:07,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:07,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:07,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502945992] [2023-12-16 17:22:07,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502945992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:07,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:07,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:07,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34980526] [2023-12-16 17:22:07,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:07,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:07,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:07,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:07,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:07,597 INFO L87 Difference]: Start difference. First operand 484 states and 813 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:10,814 INFO L93 Difference]: Finished difference Result 1743 states and 3017 transitions. [2023-12-16 17:22:10,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:22:10,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2023-12-16 17:22:10,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:10,827 INFO L225 Difference]: With dead ends: 1743 [2023-12-16 17:22:10,828 INFO L226 Difference]: Without dead ends: 1297 [2023-12-16 17:22:10,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:22:10,830 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 2189 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 4521 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 5088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 4521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:10,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 2430 Invalid, 5088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 4521 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 17:22:10,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2023-12-16 17:22:10,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1243. [2023-12-16 17:22:10,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 959 states have (on average 1.6830031282586027) internal successors, (1614), 1007 states have internal predecessors, (1614), 229 states have call successors, (229), 54 states have call predecessors, (229), 54 states have return successors, (244), 218 states have call predecessors, (244), 224 states have call successors, (244) [2023-12-16 17:22:10,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 2087 transitions. [2023-12-16 17:22:10,877 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 2087 transitions. Word has length 79 [2023-12-16 17:22:10,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:10,878 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 2087 transitions. [2023-12-16 17:22:10,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:10,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 2087 transitions. [2023-12-16 17:22:10,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 17:22:10,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:10,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:10,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-16 17:22:11,085 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 [2023-12-16 17:22:11,086 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:11,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:11,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1377102201, now seen corresponding path program 1 times [2023-12-16 17:22:11,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:11,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132090537] [2023-12-16 17:22:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:11,087 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 [2023-12-16 17:22:11,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:11,088 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) [2023-12-16 17:22:11,128 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 [2023-12-16 17:22:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:11,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:22:11,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:11,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:11,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:11,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132090537] [2023-12-16 17:22:11,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132090537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:11,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:11,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:22:11,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558614952] [2023-12-16 17:22:11,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:11,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:22:11,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:11,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:22:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:11,474 INFO L87 Difference]: Start difference. First operand 1243 states and 2087 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:15,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:15,463 INFO L93 Difference]: Finished difference Result 4845 states and 8384 transitions. [2023-12-16 17:22:15,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:22:15,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2023-12-16 17:22:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:15,485 INFO L225 Difference]: With dead ends: 4845 [2023-12-16 17:22:15,485 INFO L226 Difference]: Without dead ends: 3640 [2023-12-16 17:22:15,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:22:15,492 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 2365 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 5642 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 6395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 5642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:15,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 2507 Invalid, 6395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [753 Valid, 5642 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-16 17:22:15,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2023-12-16 17:22:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 2728. [2023-12-16 17:22:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2728 states, 2065 states have (on average 1.6760290556900725) internal successors, (3461), 2178 states have internal predecessors, (3461), 551 states have call successors, (551), 103 states have call predecessors, (551), 111 states have return successors, (642), 535 states have call predecessors, (642), 546 states have call successors, (642) [2023-12-16 17:22:15,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 4654 transitions. [2023-12-16 17:22:15,679 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 4654 transitions. Word has length 81 [2023-12-16 17:22:15,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:15,679 INFO L495 AbstractCegarLoop]: Abstraction has 2728 states and 4654 transitions. [2023-12-16 17:22:15,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:15,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 4654 transitions. [2023-12-16 17:22:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 17:22:15,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:15,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:15,690 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 [2023-12-16 17:22:15,887 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 [2023-12-16 17:22:15,888 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:15,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash 982735415, now seen corresponding path program 1 times [2023-12-16 17:22:15,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:15,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798841111] [2023-12-16 17:22:15,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:15,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:15,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:15,890 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) [2023-12-16 17:22:15,890 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 [2023-12-16 17:22:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:16,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:22:16,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:16,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:16,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:16,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798841111] [2023-12-16 17:22:16,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798841111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:16,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:16,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:16,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523260601] [2023-12-16 17:22:16,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:16,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:16,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:16,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:16,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:16,184 INFO L87 Difference]: Start difference. First operand 2728 states and 4654 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:18,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:18,743 INFO L93 Difference]: Finished difference Result 7422 states and 12770 transitions. [2023-12-16 17:22:18,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 17:22:18,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2023-12-16 17:22:18,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:18,770 INFO L225 Difference]: With dead ends: 7422 [2023-12-16 17:22:18,771 INFO L226 Difference]: Without dead ends: 5444 [2023-12-16 17:22:18,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:22:18,779 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 2509 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 3176 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 3692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 3176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:18,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2582 Valid, 1578 Invalid, 3692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 3176 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 17:22:18,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5444 states. [2023-12-16 17:22:19,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5444 to 5091. [2023-12-16 17:22:19,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5091 states, 3870 states have (on average 1.6749354005167958) internal successors, (6482), 4082 states have internal predecessors, (6482), 997 states have call successors, (997), 187 states have call predecessors, (997), 223 states have return successors, (1239), 970 states have call predecessors, (1239), 992 states have call successors, (1239) [2023-12-16 17:22:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5091 states to 5091 states and 8718 transitions. [2023-12-16 17:22:19,099 INFO L78 Accepts]: Start accepts. Automaton has 5091 states and 8718 transitions. Word has length 81 [2023-12-16 17:22:19,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:19,100 INFO L495 AbstractCegarLoop]: Abstraction has 5091 states and 8718 transitions. [2023-12-16 17:22:19,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:19,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5091 states and 8718 transitions. [2023-12-16 17:22:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:22:19,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:19,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:19,111 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 [2023-12-16 17:22:19,308 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 [2023-12-16 17:22:19,308 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:19,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1772862347, now seen corresponding path program 1 times [2023-12-16 17:22:19,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:19,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042472012] [2023-12-16 17:22:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:19,309 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 [2023-12-16 17:22:19,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:19,310 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) [2023-12-16 17:22:19,311 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 [2023-12-16 17:22:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:19,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:22:19,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:19,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:19,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:19,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:19,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042472012] [2023-12-16 17:22:19,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042472012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:19,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:19,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:22:19,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510360758] [2023-12-16 17:22:19,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:19,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:22:19,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:19,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:22:19,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:22:19,702 INFO L87 Difference]: Start difference. First operand 5091 states and 8718 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-16 17:22:22,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:22,923 INFO L93 Difference]: Finished difference Result 10407 states and 17826 transitions. [2023-12-16 17:22:22,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:22:22,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 85 [2023-12-16 17:22:22,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:22,954 INFO L225 Difference]: With dead ends: 10407 [2023-12-16 17:22:22,954 INFO L226 Difference]: Without dead ends: 6066 [2023-12-16 17:22:22,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-12-16 17:22:22,968 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1894 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 4777 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 5220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 4777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:22,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 2430 Invalid, 5220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 4777 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 17:22:22,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6066 states. [2023-12-16 17:22:23,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6066 to 5581. [2023-12-16 17:22:23,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5581 states, 4224 states have (on average 1.6491477272727273) internal successors, (6966), 4466 states have internal predecessors, (6966), 1081 states have call successors, (1081), 227 states have call predecessors, (1081), 275 states have return successors, (1401), 1036 states have call predecessors, (1401), 1076 states have call successors, (1401) [2023-12-16 17:22:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5581 states to 5581 states and 9448 transitions. [2023-12-16 17:22:23,246 INFO L78 Accepts]: Start accepts. Automaton has 5581 states and 9448 transitions. Word has length 85 [2023-12-16 17:22:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:23,246 INFO L495 AbstractCegarLoop]: Abstraction has 5581 states and 9448 transitions. [2023-12-16 17:22:23,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-16 17:22:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5581 states and 9448 transitions. [2023-12-16 17:22:23,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:22:23,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:23,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:23,256 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 [2023-12-16 17:22:23,454 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 [2023-12-16 17:22:23,454 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:23,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:23,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1932356040, now seen corresponding path program 1 times [2023-12-16 17:22:23,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:23,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605370638] [2023-12-16 17:22:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:23,455 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 [2023-12-16 17:22:23,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:23,456 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) [2023-12-16 17:22:23,456 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 [2023-12-16 17:22:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:23,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:23,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:23,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:23,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:23,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605370638] [2023-12-16 17:22:23,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605370638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:23,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:23,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:23,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587113544] [2023-12-16 17:22:23,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:23,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:23,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:23,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:23,712 INFO L87 Difference]: Start difference. First operand 5581 states and 9448 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:22:24,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:24,055 INFO L93 Difference]: Finished difference Result 10956 states and 18686 transitions. [2023-12-16 17:22:24,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:24,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 92 [2023-12-16 17:22:24,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:24,073 INFO L225 Difference]: With dead ends: 10956 [2023-12-16 17:22:24,073 INFO L226 Difference]: Without dead ends: 5581 [2023-12-16 17:22:24,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:24,083 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 234 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:24,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 2185 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:24,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5581 states. [2023-12-16 17:22:24,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5581 to 5581. [2023-12-16 17:22:24,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5581 states, 4224 states have (on average 1.6235795454545454) internal successors, (6858), 4466 states have internal predecessors, (6858), 1081 states have call successors, (1081), 227 states have call predecessors, (1081), 275 states have return successors, (1401), 1036 states have call predecessors, (1401), 1076 states have call successors, (1401) [2023-12-16 17:22:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5581 states to 5581 states and 9340 transitions. [2023-12-16 17:22:24,357 INFO L78 Accepts]: Start accepts. Automaton has 5581 states and 9340 transitions. Word has length 92 [2023-12-16 17:22:24,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:24,358 INFO L495 AbstractCegarLoop]: Abstraction has 5581 states and 9340 transitions. [2023-12-16 17:22:24,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:22:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5581 states and 9340 transitions. [2023-12-16 17:22:24,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:22:24,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:24,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:24,370 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 [2023-12-16 17:22:24,569 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 [2023-12-16 17:22:24,570 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:24,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:24,570 INFO L85 PathProgramCache]: Analyzing trace with hash 196839664, now seen corresponding path program 1 times [2023-12-16 17:22:24,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:24,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071211541] [2023-12-16 17:22:24,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:24,571 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 [2023-12-16 17:22:24,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:24,572 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) [2023-12-16 17:22:24,605 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 [2023-12-16 17:22:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:24,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:22:24,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:22:24,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:24,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:24,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071211541] [2023-12-16 17:22:24,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071211541] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:24,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:24,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:24,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154054887] [2023-12-16 17:22:24,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:24,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:24,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:24,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:24,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:24,885 INFO L87 Difference]: Start difference. First operand 5581 states and 9340 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:22:27,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:27,172 INFO L93 Difference]: Finished difference Result 10904 states and 18292 transitions. [2023-12-16 17:22:27,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:22:27,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2023-12-16 17:22:27,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:27,195 INFO L225 Difference]: With dead ends: 10904 [2023-12-16 17:22:27,195 INFO L226 Difference]: Without dead ends: 6186 [2023-12-16 17:22:27,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:22:27,208 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1949 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 2971 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 3421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 2971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:27,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 1507 Invalid, 3421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 2971 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 17:22:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6186 states. [2023-12-16 17:22:27,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6186 to 5867. [2023-12-16 17:22:27,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 4436 states have (on average 1.6073038773669972) internal successors, (7130), 4700 states have internal predecessors, (7130), 1107 states have call successors, (1107), 255 states have call predecessors, (1107), 323 states have return successors, (1501), 1060 states have call predecessors, (1501), 1102 states have call successors, (1501) [2023-12-16 17:22:27,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 9738 transitions. [2023-12-16 17:22:27,527 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 9738 transitions. Word has length 97 [2023-12-16 17:22:27,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:27,527 INFO L495 AbstractCegarLoop]: Abstraction has 5867 states and 9738 transitions. [2023-12-16 17:22:27,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:22:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 9738 transitions. [2023-12-16 17:22:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:22:27,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:27,530 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:27,538 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 [2023-12-16 17:22:27,737 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 [2023-12-16 17:22:27,737 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:27,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:27,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1393908818, now seen corresponding path program 1 times [2023-12-16 17:22:27,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:27,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964840765] [2023-12-16 17:22:27,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:27,738 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 [2023-12-16 17:22:27,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:27,739 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) [2023-12-16 17:22:27,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:22:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:27,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:22:27,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:22:28,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:28,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:28,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964840765] [2023-12-16 17:22:28,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964840765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:28,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:28,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:22:28,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507481920] [2023-12-16 17:22:28,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:28,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:22:28,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:28,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:22:28,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:28,088 INFO L87 Difference]: Start difference. First operand 5867 states and 9738 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:22:30,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:30,821 INFO L93 Difference]: Finished difference Result 11298 states and 18770 transitions. [2023-12-16 17:22:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:22:30,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-12-16 17:22:30,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:30,849 INFO L225 Difference]: With dead ends: 11298 [2023-12-16 17:22:30,849 INFO L226 Difference]: Without dead ends: 6293 [2023-12-16 17:22:30,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:22:30,863 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1557 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 3869 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 4216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:30,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1986 Invalid, 4216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 3869 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 17:22:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6293 states. [2023-12-16 17:22:31,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6293 to 5808. [2023-12-16 17:22:31,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5808 states, 4393 states have (on average 1.6050534941953107) internal successors, (7051), 4650 states have internal predecessors, (7051), 1097 states have call successors, (1097), 255 states have call predecessors, (1097), 317 states have return successors, (1452), 1051 states have call predecessors, (1452), 1092 states have call successors, (1452) [2023-12-16 17:22:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 9600 transitions. [2023-12-16 17:22:31,162 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 9600 transitions. Word has length 101 [2023-12-16 17:22:31,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:31,162 INFO L495 AbstractCegarLoop]: Abstraction has 5808 states and 9600 transitions. [2023-12-16 17:22:31,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:22:31,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 9600 transitions. [2023-12-16 17:22:31,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:22:31,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:31,164 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:31,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-16 17:22:31,370 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 [2023-12-16 17:22:31,371 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:31,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:31,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1816610644, now seen corresponding path program 1 times [2023-12-16 17:22:31,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:31,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103695410] [2023-12-16 17:22:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:31,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:31,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:31,373 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) [2023-12-16 17:22:31,392 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 [2023-12-16 17:22:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:31,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:22:31,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:22:31,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:31,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:31,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103695410] [2023-12-16 17:22:31,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103695410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:31,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:31,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:31,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989944407] [2023-12-16 17:22:31,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:31,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:31,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:31,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:31,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:31,771 INFO L87 Difference]: Start difference. First operand 5808 states and 9600 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:22:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:34,278 INFO L93 Difference]: Finished difference Result 12831 states and 21386 transitions. [2023-12-16 17:22:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:22:34,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-12-16 17:22:34,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:34,308 INFO L225 Difference]: With dead ends: 12831 [2023-12-16 17:22:34,309 INFO L226 Difference]: Without dead ends: 7877 [2023-12-16 17:22:34,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:22:34,319 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 1638 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 3094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:34,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 1282 Invalid, 3094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 17:22:34,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7877 states. [2023-12-16 17:22:34,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7877 to 7602. [2023-12-16 17:22:34,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7602 states, 5727 states have (on average 1.6062510913218089) internal successors, (9199), 6070 states have internal predecessors, (9199), 1475 states have call successors, (1475), 341 states have call predecessors, (1475), 399 states have return successors, (1954), 1395 states have call predecessors, (1954), 1470 states have call successors, (1954) [2023-12-16 17:22:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7602 states to 7602 states and 12628 transitions. [2023-12-16 17:22:34,688 INFO L78 Accepts]: Start accepts. Automaton has 7602 states and 12628 transitions. Word has length 101 [2023-12-16 17:22:34,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:34,689 INFO L495 AbstractCegarLoop]: Abstraction has 7602 states and 12628 transitions. [2023-12-16 17:22:34,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:22:34,689 INFO L276 IsEmpty]: Start isEmpty. Operand 7602 states and 12628 transitions. [2023-12-16 17:22:34,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:22:34,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:34,691 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:34,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-12-16 17:22:34,896 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 [2023-12-16 17:22:34,897 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:34,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:34,897 INFO L85 PathProgramCache]: Analyzing trace with hash -608625198, now seen corresponding path program 1 times [2023-12-16 17:22:34,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:34,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339150398] [2023-12-16 17:22:34,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:34,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:34,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:34,900 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) [2023-12-16 17:22:34,932 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 [2023-12-16 17:22:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:35,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:22:35,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:22:35,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:35,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:35,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339150398] [2023-12-16 17:22:35,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339150398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:35,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:35,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:35,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253540318] [2023-12-16 17:22:35,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:35,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:22:35,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:35,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:22:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:35,248 INFO L87 Difference]: Start difference. First operand 7602 states and 12628 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 17:22:35,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:35,969 INFO L93 Difference]: Finished difference Result 7693 states and 12783 transitions. [2023-12-16 17:22:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:22:35,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2023-12-16 17:22:35,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:35,998 INFO L225 Difference]: With dead ends: 7693 [2023-12-16 17:22:35,998 INFO L226 Difference]: Without dead ends: 7678 [2023-12-16 17:22:36,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:36,004 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 727 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:36,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 1952 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:22:36,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2023-12-16 17:22:36,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 7608. [2023-12-16 17:22:36,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7608 states, 5733 states have (on average 1.6056166056166057) internal successors, (9205), 6076 states have internal predecessors, (9205), 1475 states have call successors, (1475), 341 states have call predecessors, (1475), 399 states have return successors, (1954), 1395 states have call predecessors, (1954), 1470 states have call successors, (1954) [2023-12-16 17:22:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7608 states to 7608 states and 12634 transitions. [2023-12-16 17:22:36,485 INFO L78 Accepts]: Start accepts. Automaton has 7608 states and 12634 transitions. Word has length 102 [2023-12-16 17:22:36,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:36,485 INFO L495 AbstractCegarLoop]: Abstraction has 7608 states and 12634 transitions. [2023-12-16 17:22:36,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 17:22:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 7608 states and 12634 transitions. [2023-12-16 17:22:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 17:22:36,487 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:36,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:36,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-16 17:22:36,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:36,692 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:36,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash 624172042, now seen corresponding path program 1 times [2023-12-16 17:22:36,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:36,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569259103] [2023-12-16 17:22:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:36,693 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 [2023-12-16 17:22:36,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:36,694 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:36,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 17:22:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:36,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:22:36,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:22:36,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:36,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:36,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569259103] [2023-12-16 17:22:36,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569259103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:36,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:36,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:22:36,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781661200] [2023-12-16 17:22:36,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:36,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:22:36,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:36,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:22:36,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:36,937 INFO L87 Difference]: Start difference. First operand 7608 states and 12634 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-16 17:22:37,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:37,280 INFO L93 Difference]: Finished difference Result 7629 states and 12661 transitions. [2023-12-16 17:22:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:22:37,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2023-12-16 17:22:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:37,308 INFO L225 Difference]: With dead ends: 7629 [2023-12-16 17:22:37,309 INFO L226 Difference]: Without dead ends: 7614 [2023-12-16 17:22:37,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:22:37,314 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 34 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:37,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3047 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:37,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7614 states. [2023-12-16 17:22:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7614 to 7608. [2023-12-16 17:22:37,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7608 states, 5733 states have (on average 1.604221175649747) internal successors, (9197), 6076 states have internal predecessors, (9197), 1475 states have call successors, (1475), 341 states have call predecessors, (1475), 399 states have return successors, (1954), 1395 states have call predecessors, (1954), 1470 states have call successors, (1954) [2023-12-16 17:22:37,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7608 states to 7608 states and 12626 transitions. [2023-12-16 17:22:37,717 INFO L78 Accepts]: Start accepts. Automaton has 7608 states and 12626 transitions. Word has length 107 [2023-12-16 17:22:37,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:37,719 INFO L495 AbstractCegarLoop]: Abstraction has 7608 states and 12626 transitions. [2023-12-16 17:22:37,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-16 17:22:37,719 INFO L276 IsEmpty]: Start isEmpty. Operand 7608 states and 12626 transitions. [2023-12-16 17:22:37,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 17:22:37,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:37,721 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:37,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-16 17:22:37,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:37,928 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:37,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:37,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1530689418, now seen corresponding path program 1 times [2023-12-16 17:22:37,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:37,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668106742] [2023-12-16 17:22:37,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:37,929 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 [2023-12-16 17:22:37,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:37,930 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:37,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 17:22:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:38,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:22:38,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:38,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 17:22:38,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:38,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:38,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668106742] [2023-12-16 17:22:38,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668106742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:38,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:38,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:22:38,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768299302] [2023-12-16 17:22:38,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:38,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:22:38,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:38,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:22:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:38,277 INFO L87 Difference]: Start difference. First operand 7608 states and 12626 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 17:22:40,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:40,013 INFO L93 Difference]: Finished difference Result 15201 states and 25301 transitions. [2023-12-16 17:22:40,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:22:40,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2023-12-16 17:22:40,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:40,041 INFO L225 Difference]: With dead ends: 15201 [2023-12-16 17:22:40,041 INFO L226 Difference]: Without dead ends: 7640 [2023-12-16 17:22:40,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:22:40,061 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1196 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 2484 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 2813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 2484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:40,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1423 Invalid, 2813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 2484 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 17:22:40,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7640 states. [2023-12-16 17:22:40,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7640 to 7608. [2023-12-16 17:22:40,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7608 states, 5733 states have (on average 1.6028257456828885) internal successors, (9189), 6076 states have internal predecessors, (9189), 1475 states have call successors, (1475), 341 states have call predecessors, (1475), 399 states have return successors, (1954), 1395 states have call predecessors, (1954), 1470 states have call successors, (1954) [2023-12-16 17:22:40,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7608 states to 7608 states and 12618 transitions. [2023-12-16 17:22:40,568 INFO L78 Accepts]: Start accepts. Automaton has 7608 states and 12618 transitions. Word has length 116 [2023-12-16 17:22:40,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:40,568 INFO L495 AbstractCegarLoop]: Abstraction has 7608 states and 12618 transitions. [2023-12-16 17:22:40,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 17:22:40,569 INFO L276 IsEmpty]: Start isEmpty. Operand 7608 states and 12618 transitions. [2023-12-16 17:22:40,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 17:22:40,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:40,571 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:40,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:40,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:40,777 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:40,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:40,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1725805860, now seen corresponding path program 1 times [2023-12-16 17:22:40,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:40,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744450134] [2023-12-16 17:22:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:40,778 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 [2023-12-16 17:22:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:40,779 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:40,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 17:22:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:40,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:22:40,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:22:41,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:41,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:41,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744450134] [2023-12-16 17:22:41,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744450134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:41,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:41,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:41,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940132384] [2023-12-16 17:22:41,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:41,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:41,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:41,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:41,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:41,017 INFO L87 Difference]: Start difference. First operand 7608 states and 12618 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 17:22:41,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:41,406 INFO L93 Difference]: Finished difference Result 7745 states and 12835 transitions. [2023-12-16 17:22:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:22:41,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2023-12-16 17:22:41,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:41,434 INFO L225 Difference]: With dead ends: 7745 [2023-12-16 17:22:41,434 INFO L226 Difference]: Without dead ends: 7730 [2023-12-16 17:22:41,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:41,439 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 47 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:41,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2363 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:41,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2023-12-16 17:22:41,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 7616. [2023-12-16 17:22:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7616 states, 5741 states have (on average 1.6012889740463334) internal successors, (9193), 6084 states have internal predecessors, (9193), 1475 states have call successors, (1475), 341 states have call predecessors, (1475), 399 states have return successors, (1954), 1395 states have call predecessors, (1954), 1470 states have call successors, (1954) [2023-12-16 17:22:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7616 states to 7616 states and 12622 transitions. [2023-12-16 17:22:41,821 INFO L78 Accepts]: Start accepts. Automaton has 7616 states and 12622 transitions. Word has length 125 [2023-12-16 17:22:41,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:41,822 INFO L495 AbstractCegarLoop]: Abstraction has 7616 states and 12622 transitions. [2023-12-16 17:22:41,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 17:22:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7616 states and 12622 transitions. [2023-12-16 17:22:41,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 17:22:41,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:41,826 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:41,836 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 (30)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:42,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:42,032 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:42,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:42,033 INFO L85 PathProgramCache]: Analyzing trace with hash -633427614, now seen corresponding path program 1 times [2023-12-16 17:22:42,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:42,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581657436] [2023-12-16 17:22:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:42,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:42,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:42,034 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-12-16 17:22:42,034 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 (31)] Waiting until timeout for monitored process [2023-12-16 17:22:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:42,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:22:42,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 17:22:42,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:22:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 17:22:42,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:42,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581657436] [2023-12-16 17:22:42,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581657436] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:22:42,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:22:42,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-12-16 17:22:42,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732335] [2023-12-16 17:22:42,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:22:42,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 17:22:42,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:42,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 17:22:42,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-16 17:22:42,754 INFO L87 Difference]: Start difference. First operand 7616 states and 12622 transitions. Second operand has 15 states, 15 states have (on average 10.0) internal successors, (150), 13 states have internal predecessors, (150), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-16 17:22:47,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:47,265 INFO L93 Difference]: Finished difference Result 24944 states and 41934 transitions. [2023-12-16 17:22:47,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:22:47,266 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.0) internal successors, (150), 13 states have internal predecessors, (150), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) Word has length 153 [2023-12-16 17:22:47,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:47,346 INFO L225 Difference]: With dead ends: 24944 [2023-12-16 17:22:47,347 INFO L226 Difference]: Without dead ends: 17375 [2023-12-16 17:22:47,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2023-12-16 17:22:47,374 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 3607 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 5772 mSolverCounterSat, 1014 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3721 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 6786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1014 IncrementalHoareTripleChecker+Valid, 5772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:47,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3721 Valid, 3629 Invalid, 6786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1014 Valid, 5772 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 17:22:47,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17375 states. [2023-12-16 17:22:48,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17375 to 17272. [2023-12-16 17:22:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17272 states, 12705 states have (on average 1.594883903974813) internal successors, (20263), 13512 states have internal predecessors, (20263), 3717 states have call successors, (3717), 678 states have call predecessors, (3717), 849 states have return successors, (5118), 3596 states have call predecessors, (5118), 3712 states have call successors, (5118) [2023-12-16 17:22:48,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17272 states to 17272 states and 29098 transitions. [2023-12-16 17:22:48,533 INFO L78 Accepts]: Start accepts. Automaton has 17272 states and 29098 transitions. Word has length 153 [2023-12-16 17:22:48,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:48,533 INFO L495 AbstractCegarLoop]: Abstraction has 17272 states and 29098 transitions. [2023-12-16 17:22:48,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.0) internal successors, (150), 13 states have internal predecessors, (150), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-16 17:22:48,533 INFO L276 IsEmpty]: Start isEmpty. Operand 17272 states and 29098 transitions. [2023-12-16 17:22:48,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 17:22:48,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:48,542 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:48,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-16 17:22:48,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:48,748 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:48,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:48,749 INFO L85 PathProgramCache]: Analyzing trace with hash 413590305, now seen corresponding path program 1 times [2023-12-16 17:22:48,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:48,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970308798] [2023-12-16 17:22:48,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:48,749 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 [2023-12-16 17:22:48,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:48,750 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-16 17:22:48,750 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 (32)] Waiting until timeout for monitored process [2023-12-16 17:22:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:48,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:48,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:22:48,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:48,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970308798] [2023-12-16 17:22:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970308798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:48,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:48,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:48,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452608958] [2023-12-16 17:22:48,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:48,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:48,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:48,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:48,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:48,996 INFO L87 Difference]: Start difference. First operand 17272 states and 29098 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:22:50,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:50,333 INFO L93 Difference]: Finished difference Result 34643 states and 58632 transitions. [2023-12-16 17:22:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:22:50,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2023-12-16 17:22:50,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:50,407 INFO L225 Difference]: With dead ends: 34643 [2023-12-16 17:22:50,407 INFO L226 Difference]: Without dead ends: 17434 [2023-12-16 17:22:50,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:50,462 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 18 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:50,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2194 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17434 states. [2023-12-16 17:22:51,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17434 to 17432. [2023-12-16 17:22:51,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17432 states, 12841 states have (on average 1.5867144303403162) internal successors, (20375), 13632 states have internal predecessors, (20375), 3705 states have call successors, (3705), 738 states have call predecessors, (3705), 885 states have return successors, (5002), 3576 states have call predecessors, (5002), 3700 states have call successors, (5002) [2023-12-16 17:22:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17432 states to 17432 states and 29082 transitions. [2023-12-16 17:22:51,630 INFO L78 Accepts]: Start accepts. Automaton has 17432 states and 29082 transitions. Word has length 154 [2023-12-16 17:22:51,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:51,631 INFO L495 AbstractCegarLoop]: Abstraction has 17432 states and 29082 transitions. [2023-12-16 17:22:51,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:22:51,631 INFO L276 IsEmpty]: Start isEmpty. Operand 17432 states and 29082 transitions. [2023-12-16 17:22:51,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 17:22:51,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:51,640 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:51,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-12-16 17:22:51,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:51,846 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:51,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:51,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1640413682, now seen corresponding path program 1 times [2023-12-16 17:22:51,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:51,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633361148] [2023-12-16 17:22:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:51,847 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 [2023-12-16 17:22:51,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:51,848 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-16 17:22:51,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 17:22:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:52,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:22:52,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-12-16 17:22:52,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:52,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:52,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633361148] [2023-12-16 17:22:52,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633361148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:52,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:52,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:22:52,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85044953] [2023-12-16 17:22:52,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:52,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:22:52,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:52,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:22:52,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:52,125 INFO L87 Difference]: Start difference. First operand 17432 states and 29082 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:22:53,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:53,268 INFO L93 Difference]: Finished difference Result 24949 states and 41449 transitions. [2023-12-16 17:22:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:22:53,268 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 157 [2023-12-16 17:22:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:53,329 INFO L225 Difference]: With dead ends: 24949 [2023-12-16 17:22:53,330 INFO L226 Difference]: Without dead ends: 17235 [2023-12-16 17:22:53,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:22:53,353 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 25 mSDsluCounter, 4513 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5268 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:53,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5268 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:53,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17235 states. [2023-12-16 17:22:54,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17235 to 17235. [2023-12-16 17:22:54,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17235 states, 12689 states have (on average 1.5902750413744189) internal successors, (20179), 13481 states have internal predecessors, (20179), 3663 states have call successors, (3663), 737 states have call predecessors, (3663), 882 states have return successors, (4908), 3531 states have call predecessors, (4908), 3658 states have call successors, (4908) [2023-12-16 17:22:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17235 states to 17235 states and 28750 transitions. [2023-12-16 17:22:54,395 INFO L78 Accepts]: Start accepts. Automaton has 17235 states and 28750 transitions. Word has length 157 [2023-12-16 17:22:54,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:54,396 INFO L495 AbstractCegarLoop]: Abstraction has 17235 states and 28750 transitions. [2023-12-16 17:22:54,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:22:54,396 INFO L276 IsEmpty]: Start isEmpty. Operand 17235 states and 28750 transitions. [2023-12-16 17:22:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 17:22:54,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:54,402 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:22:54,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-12-16 17:22:54,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:54,607 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:54,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1239041404, now seen corresponding path program 1 times [2023-12-16 17:22:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:54,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363234100] [2023-12-16 17:22:54,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:54,608 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 [2023-12-16 17:22:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:54,609 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-16 17:22:54,610 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 (34)] Waiting until timeout for monitored process [2023-12-16 17:22:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:54,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:22:54,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:54,907 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-16 17:22:54,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:54,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:54,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363234100] [2023-12-16 17:22:54,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363234100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:54,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:54,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:54,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291590345] [2023-12-16 17:22:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:54,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:54,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:54,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:54,909 INFO L87 Difference]: Start difference. First operand 17235 states and 28750 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:22:56,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:56,631 INFO L93 Difference]: Finished difference Result 39218 states and 66424 transitions. [2023-12-16 17:22:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:56,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 174 [2023-12-16 17:22:56,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:56,733 INFO L225 Difference]: With dead ends: 39218 [2023-12-16 17:22:56,734 INFO L226 Difference]: Without dead ends: 23713 [2023-12-16 17:22:56,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:56,777 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 211 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:56,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2567 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:56,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23713 states. [2023-12-16 17:22:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23713 to 17291. [2023-12-16 17:22:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17291 states, 12745 states have (on average 1.587681443703413) internal successors, (20235), 13537 states have internal predecessors, (20235), 3663 states have call successors, (3663), 737 states have call predecessors, (3663), 882 states have return successors, (4908), 3531 states have call predecessors, (4908), 3658 states have call successors, (4908) Received shutdown request... [2023-12-16 17:22:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17291 states to 17291 states and 28806 transitions. [2023-12-16 17:22:58,229 INFO L78 Accepts]: Start accepts. Automaton has 17291 states and 28806 transitions. Word has length 174 [2023-12-16 17:22:58,230 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:22:58,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-16 17:22:58,258 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:22:58,262 WARN L340 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 (34)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:22:58,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:58,432 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Accepts. [2023-12-16 17:22:58,438 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:58,439 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:22:58,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:22:58 BoogieIcfgContainer [2023-12-16 17:22:58,442 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:22:58,443 INFO L158 Benchmark]: Toolchain (without parser) took 64743.44ms. Allocated memory was 219.2MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 179.6MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 17:22:58,443 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 219.2MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:22:58,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.03ms. Allocated memory was 219.2MB in the beginning and 282.1MB in the end (delta: 62.9MB). Free memory was 179.6MB in the beginning and 240.6MB in the end (delta: -61.1MB). Peak memory consumption was 59.3MB. Max. memory is 8.0GB. [2023-12-16 17:22:58,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.37ms. Allocated memory is still 282.1MB. Free memory was 240.6MB in the beginning and 236.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 17:22:58,447 INFO L158 Benchmark]: Boogie Preprocessor took 101.32ms. Allocated memory is still 282.1MB. Free memory was 236.0MB in the beginning and 228.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 17:22:58,449 INFO L158 Benchmark]: RCFGBuilder took 1070.28ms. Allocated memory is still 282.1MB. Free memory was 228.1MB in the beginning and 196.2MB in the end (delta: 31.9MB). Peak memory consumption was 88.6MB. Max. memory is 8.0GB. [2023-12-16 17:22:58,449 INFO L158 Benchmark]: TraceAbstraction took 62818.50ms. Allocated memory was 282.1MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 195.1MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 17:22:58,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 219.2MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 681.03ms. Allocated memory was 219.2MB in the beginning and 282.1MB in the end (delta: 62.9MB). Free memory was 179.6MB in the beginning and 240.6MB in the end (delta: -61.1MB). Peak memory consumption was 59.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.37ms. Allocated memory is still 282.1MB. Free memory was 240.6MB in the beginning and 236.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 101.32ms. Allocated memory is still 282.1MB. Free memory was 236.0MB in the beginning and 228.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1070.28ms. Allocated memory is still 282.1MB. Free memory was 228.1MB in the beginning and 196.2MB in the end (delta: 31.9MB). Peak memory consumption was 88.6MB. Max. memory is 8.0GB. * TraceAbstraction took 62818.50ms. Allocated memory was 282.1MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 195.1MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] - GenericResultAtLocation [Line: 716]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [716] - GenericResultAtLocation [Line: 725]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [725] - GenericResultAtLocation [Line: 846]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [846] - GenericResultAtLocation [Line: 884]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [884] - GenericResultAtLocation [Line: 983]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [983] - GenericResultAtLocation [Line: 1337]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1337] - GenericResultAtLocation [Line: 2786]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [2786] - GenericResultAtLocation [Line: 2967]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2967] - GenericResultAtLocation [Line: 3333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3333] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 721]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 721). Cancelled while executing Accepts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 511 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.8s, OverallIterations: 33, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 37.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22789 SdHoareTripleChecker+Valid, 26.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22099 mSDsluCounter, 84583 SdHoareTripleChecker+Invalid, 21.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61454 mSDsCounter, 5323 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40773 IncrementalHoareTripleChecker+Invalid, 46096 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5323 mSolverCounterUnsat, 23129 mSDtfsCounter, 40773 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3271 GetRequests, 3043 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17432occurred in iteration=31, InterpolantAutomatonStates: 238, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.9s AutomataMinimizationTime, 33 MinimizatonAttempts, 9633 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 3028 NumberOfCodeBlocks, 3028 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 3147 ConstructedInterpolants, 0 QuantifiedInterpolants, 5953 SizeOfPredicates, 58 NumberOfNonLiveVariables, 23839 ConjunctsInSsa, 203 ConjunctsInUnsatCore, 34 InterpolantComputations, 32 PerfectInterpolantSequences, 531/543 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown