/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:32:58,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:32:58,616 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:32:58,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:32:58,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:32:58,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:32:58,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:32:58,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:32:58,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:32:58,659 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:32:58,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:32:58,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:32:58,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:32:58,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:32:58,663 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:32:58,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:32:58,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:32:58,664 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:32:58,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:32:58,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:32:58,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:32:58,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:32:58,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:32:58,666 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:32:58,666 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:32:58,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:32:58,667 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:32:58,667 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:32:58,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:32:58,667 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:32:58,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:32:58,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:32:58,669 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:32:58,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:32:58,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:32:58,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:32:58,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:32:58,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:32:58,670 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:32:58,670 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:32:58,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:32:58,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:32:58,671 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:32:58,671 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:32:58,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:32:58,671 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:32:58,672 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:32:58,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:32:58,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:32:58,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:32:58,959 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:32:58,960 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:32:58,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c [2023-12-25 05:33:00,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:33:00,467 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:33:00,467 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c [2023-12-25 05:33:00,494 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135b710d9/3c35f74ce0b142768f06f5a6daeba723/FLAGb79108a29 [2023-12-25 05:33:00,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135b710d9/3c35f74ce0b142768f06f5a6daeba723 [2023-12-25 05:33:00,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:33:00,509 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:33:00,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:33:00,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:33:00,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:33:00,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:33:00" (1/1) ... [2023-12-25 05:33:00,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dab880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:00, skipping insertion in model container [2023-12-25 05:33:00,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:33:00" (1/1) ... [2023-12-25 05:33:00,583 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:33:00,894 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c[21710,21723] [2023-12-25 05:33:01,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:33:01,155 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:33:01,175 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:33:01,211 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c[21710,21723] [2023-12-25 05:33:01,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:33:01,265 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:33:01,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2023-12-25 05:33:01,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [147] [2023-12-25 05:33:01,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [165] [2023-12-25 05:33:01,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [832] [2023-12-25 05:33:01,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [952] [2023-12-25 05:33:01,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [961] [2023-12-25 05:33:01,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2404] [2023-12-25 05:33:01,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2442] [2023-12-25 05:33:01,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [2790] [2023-12-25 05:33:01,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2976] [2023-12-25 05:33:01,301 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c[21710,21723] [2023-12-25 05:33:01,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:33:01,398 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:33:01,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01 WrapperNode [2023-12-25 05:33:01,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:33:01,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:33:01,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:33:01,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:33:01,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,471 INFO L138 Inliner]: procedures = 89, calls = 336, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 758 [2023-12-25 05:33:01,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:33:01,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:33:01,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:33:01,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:33:01,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,498 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,530 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:33:01,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:33:01,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:33:01,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:33:01,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:33:01,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (1/1) ... [2023-12-25 05:33:01,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:33:01,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:33:01,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 05:33:01,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 05:33:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:33:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:33:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:33:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:33:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:33:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:33:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:33:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:33:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:33:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:33:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:33:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:33:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:33:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:33:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:33:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:33:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:33:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:33:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:33:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:33:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:33:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:33:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:33:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:33:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:33:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:33:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:33:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:33:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:33:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:33:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:33:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:33:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-25 05:33:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-25 05:33:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:33:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:33:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-25 05:33:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-25 05:33:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:33:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:33:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:33:01,733 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:33:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:33:01,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:33:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:33:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:33:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:33:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:33:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:33:01,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:33:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:33:01,735 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:33:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:33:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:33:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:33:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:33:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:33:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:33:01,899 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:33:01,902 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:33:03,096 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:33:03,210 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:33:03,211 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:33:03,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:33:03 BoogieIcfgContainer [2023-12-25 05:33:03,211 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:33:03,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:33:03,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:33:03,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:33:03,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:33:00" (1/3) ... [2023-12-25 05:33:03,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3641284e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:33:03, skipping insertion in model container [2023-12-25 05:33:03,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:01" (2/3) ... [2023-12-25 05:33:03,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3641284e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:33:03, skipping insertion in model container [2023-12-25 05:33:03,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:33:03" (3/3) ... [2023-12-25 05:33:03,219 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product09.cil.c [2023-12-25 05:33:03,237 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:33:03,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:33:03,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:33:03,321 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;@45d73f5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:33:03,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:33:03,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 536 states, 413 states have (on average 1.7263922518159807) internal successors, (713), 431 states have internal predecessors, (713), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-25 05:33:03,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 05:33:03,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:03,355 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:03,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:03,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:03,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1944334352, now seen corresponding path program 1 times [2023-12-25 05:33:03,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:03,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37456739] [2023-12-25 05:33:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:03,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:03,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:03,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:03,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:33:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:03,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:03,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:03,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:03,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:03,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37456739] [2023-12-25 05:33:03,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37456739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:03,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:03,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:03,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212556446] [2023-12-25 05:33:03,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:03,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:03,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:03,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:03,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:03,974 INFO L87 Difference]: Start difference. First operand has 536 states, 413 states have (on average 1.7263922518159807) internal successors, (713), 431 states have internal predecessors, (713), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:04,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:04,368 INFO L93 Difference]: Finished difference Result 1075 states and 1836 transitions. [2023-12-25 05:33:04,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:04,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 75 [2023-12-25 05:33:04,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:04,394 INFO L225 Difference]: With dead ends: 1075 [2023-12-25 05:33:04,395 INFO L226 Difference]: Without dead ends: 544 [2023-12-25 05:33:04,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:04,410 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 115 mSDsluCounter, 4296 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:04,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5174 Invalid, 164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:33:04,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-12-25 05:33:04,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 542. [2023-12-25 05:33:04,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 419 states have (on average 1.7112171837708832) internal successors, (717), 437 states have internal predecessors, (717), 99 states have call successors, (99), 23 states have call predecessors, (99), 23 states have return successors, (98), 94 states have call predecessors, (98), 96 states have call successors, (98) [2023-12-25 05:33:04,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 914 transitions. [2023-12-25 05:33:04,521 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 914 transitions. Word has length 75 [2023-12-25 05:33:04,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:04,523 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 914 transitions. [2023-12-25 05:33:04,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 914 transitions. [2023-12-25 05:33:04,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 05:33:04,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:04,540 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:04,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:04,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:04,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:04,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:04,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1775703688, now seen corresponding path program 1 times [2023-12-25 05:33:04,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:04,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027860711] [2023-12-25 05:33:04,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:04,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:04,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:04,753 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:04,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:33:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:05,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:05,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:05,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:05,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:05,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027860711] [2023-12-25 05:33:05,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027860711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:05,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:05,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:05,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648608086] [2023-12-25 05:33:05,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:05,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:05,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:05,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:05,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:05,192 INFO L87 Difference]: Start difference. First operand 542 states and 914 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:05,430 INFO L93 Difference]: Finished difference Result 1084 states and 1836 transitions. [2023-12-25 05:33:05,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:05,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 76 [2023-12-25 05:33:05,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:05,435 INFO L225 Difference]: With dead ends: 1084 [2023-12-25 05:33:05,435 INFO L226 Difference]: Without dead ends: 552 [2023-12-25 05:33:05,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:05,440 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 102 mSDsluCounter, 4291 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 5172 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:05,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 5172 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:33:05,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-12-25 05:33:05,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 542. [2023-12-25 05:33:05,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 419 states have (on average 1.7112171837708832) internal successors, (717), 437 states have internal predecessors, (717), 99 states have call successors, (99), 23 states have call predecessors, (99), 23 states have return successors, (98), 94 states have call predecessors, (98), 96 states have call successors, (98) [2023-12-25 05:33:05,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 914 transitions. [2023-12-25 05:33:05,468 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 914 transitions. Word has length 76 [2023-12-25 05:33:05,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:05,468 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 914 transitions. [2023-12-25 05:33:05,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:05,469 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 914 transitions. [2023-12-25 05:33:05,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 05:33:05,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:05,472 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:05,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:05,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:05,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:05,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:05,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1694545189, now seen corresponding path program 1 times [2023-12-25 05:33:05,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:05,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879810579] [2023-12-25 05:33:05,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:05,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:05,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:05,684 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:05,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:33:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:06,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:06,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:06,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:06,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:06,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879810579] [2023-12-25 05:33:06,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879810579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:06,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:06,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:06,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069937161] [2023-12-25 05:33:06,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:06,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:06,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:06,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:06,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:06,036 INFO L87 Difference]: Start difference. First operand 542 states and 914 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:33:06,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:06,126 INFO L93 Difference]: Finished difference Result 1072 states and 1815 transitions. [2023-12-25 05:33:06,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:33:06,126 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 76 [2023-12-25 05:33:06,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:06,130 INFO L225 Difference]: With dead ends: 1072 [2023-12-25 05:33:06,130 INFO L226 Difference]: Without dead ends: 513 [2023-12-25 05:33:06,154 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 [2023-12-25 05:33:06,155 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 22 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2609 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:06,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2609 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-12-25 05:33:06,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2023-12-25 05:33:06,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 393 states have (on average 1.6946564885496183) internal successors, (666), 409 states have internal predecessors, (666), 98 states have call successors, (98), 23 states have call predecessors, (98), 21 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-25 05:33:06,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 859 transitions. [2023-12-25 05:33:06,187 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 859 transitions. Word has length 76 [2023-12-25 05:33:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:06,188 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 859 transitions. [2023-12-25 05:33:06,188 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:33:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 859 transitions. [2023-12-25 05:33:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 05:33:06,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:06,192 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:06,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:06,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:06,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:06,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash 35454004, now seen corresponding path program 1 times [2023-12-25 05:33:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:06,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210048710] [2023-12-25 05:33:06,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:06,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:06,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:06,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:06,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:33:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:06,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:06,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:06,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:06,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:06,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:06,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210048710] [2023-12-25 05:33:06,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210048710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:06,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:06,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:06,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115158501] [2023-12-25 05:33:06,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:06,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:06,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:06,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:06,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:06,772 INFO L87 Difference]: Start difference. First operand 513 states and 859 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:06,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:06,939 INFO L93 Difference]: Finished difference Result 1024 states and 1722 transitions. [2023-12-25 05:33:06,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:06,940 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 77 [2023-12-25 05:33:06,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:06,943 INFO L225 Difference]: With dead ends: 1024 [2023-12-25 05:33:06,944 INFO L226 Difference]: Without dead ends: 507 [2023-12-25 05:33:06,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:06,953 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 87 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:06,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 4949 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-25 05:33:06,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-25 05:33:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 387 states have (on average 1.6873385012919897) internal successors, (653), 403 states have internal predecessors, (653), 98 states have call successors, (98), 23 states have call predecessors, (98), 21 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-25 05:33:06,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 846 transitions. [2023-12-25 05:33:06,980 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 846 transitions. Word has length 77 [2023-12-25 05:33:06,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:06,980 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 846 transitions. [2023-12-25 05:33:06,980 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:06,980 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 846 transitions. [2023-12-25 05:33:06,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 05:33:06,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:06,982 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:06,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:07,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:07,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:07,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:07,192 INFO L85 PathProgramCache]: Analyzing trace with hash 305033901, now seen corresponding path program 1 times [2023-12-25 05:33:07,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:07,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997536960] [2023-12-25 05:33:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:07,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:07,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:07,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:07,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:33:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:07,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:07,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:07,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:07,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:07,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997536960] [2023-12-25 05:33:07,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997536960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:07,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:07,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:07,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580593525] [2023-12-25 05:33:07,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:07,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:07,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:07,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:07,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:07,587 INFO L87 Difference]: Start difference. First operand 507 states and 846 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:07,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:07,731 INFO L93 Difference]: Finished difference Result 1012 states and 1696 transitions. [2023-12-25 05:33:07,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:07,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 78 [2023-12-25 05:33:07,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:07,735 INFO L225 Difference]: With dead ends: 1012 [2023-12-25 05:33:07,735 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 05:33:07,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:07,739 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 73 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 4889 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:07,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 4889 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:07,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 05:33:07,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-25 05:33:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 381 states have (on average 1.6771653543307086) internal successors, (639), 397 states have internal predecessors, (639), 98 states have call successors, (98), 23 states have call predecessors, (98), 21 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-25 05:33:07,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 832 transitions. [2023-12-25 05:33:07,756 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 832 transitions. Word has length 78 [2023-12-25 05:33:07,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:07,756 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 832 transitions. [2023-12-25 05:33:07,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:07,756 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 832 transitions. [2023-12-25 05:33:07,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 05:33:07,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:07,774 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:07,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:07,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:07,982 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:07,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:07,983 INFO L85 PathProgramCache]: Analyzing trace with hash -598566824, now seen corresponding path program 1 times [2023-12-25 05:33:07,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:07,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360380318] [2023-12-25 05:33:07,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:07,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:07,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:07,985 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:07,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:33:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:08,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:08,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:08,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:08,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:08,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360380318] [2023-12-25 05:33:08,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360380318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:08,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:08,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:08,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926267146] [2023-12-25 05:33:08,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:08,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:08,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:08,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:08,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:08,398 INFO L87 Difference]: Start difference. First operand 501 states and 832 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:08,611 INFO L93 Difference]: Finished difference Result 994 states and 1657 transitions. [2023-12-25 05:33:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:08,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 79 [2023-12-25 05:33:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:08,615 INFO L225 Difference]: With dead ends: 994 [2023-12-25 05:33:08,615 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 05:33:08,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:33:08,619 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 35 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:08,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5591 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:08,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 05:33:08,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-25 05:33:08,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 381 states have (on average 1.6745406824146982) internal successors, (638), 397 states have internal predecessors, (638), 98 states have call successors, (98), 23 states have call predecessors, (98), 21 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-25 05:33:08,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 831 transitions. [2023-12-25 05:33:08,638 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 831 transitions. Word has length 79 [2023-12-25 05:33:08,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:08,638 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 831 transitions. [2023-12-25 05:33:08,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:08,639 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 831 transitions. [2023-12-25 05:33:08,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 05:33:08,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:08,641 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:08,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:08,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:08,852 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:08,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:08,852 INFO L85 PathProgramCache]: Analyzing trace with hash -303206516, now seen corresponding path program 1 times [2023-12-25 05:33:08,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:08,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92044479] [2023-12-25 05:33:08,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:08,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:08,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:08,854 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:08,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:33:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:09,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:09,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:09,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:09,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:09,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:09,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92044479] [2023-12-25 05:33:09,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92044479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:09,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:09,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:09,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315458001] [2023-12-25 05:33:09,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:09,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:09,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:09,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:09,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:09,249 INFO L87 Difference]: Start difference. First operand 501 states and 831 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:09,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:09,453 INFO L93 Difference]: Finished difference Result 994 states and 1655 transitions. [2023-12-25 05:33:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:09,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 80 [2023-12-25 05:33:09,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:09,456 INFO L225 Difference]: With dead ends: 994 [2023-12-25 05:33:09,457 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 05:33:09,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:33:09,460 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 32 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:09,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 5591 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:09,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 05:33:09,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-25 05:33:09,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 381 states have (on average 1.6719160104986877) internal successors, (637), 397 states have internal predecessors, (637), 98 states have call successors, (98), 23 states have call predecessors, (98), 21 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-25 05:33:09,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 830 transitions. [2023-12-25 05:33:09,477 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 830 transitions. Word has length 80 [2023-12-25 05:33:09,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:09,477 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 830 transitions. [2023-12-25 05:33:09,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:09,477 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 830 transitions. [2023-12-25 05:33:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 05:33:09,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:09,480 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:09,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:09,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:09,690 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:09,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:09,690 INFO L85 PathProgramCache]: Analyzing trace with hash -774703523, now seen corresponding path program 1 times [2023-12-25 05:33:09,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:09,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174381191] [2023-12-25 05:33:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:09,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:09,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:09,692 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:09,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:33:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:09,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:09,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:10,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:10,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:10,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174381191] [2023-12-25 05:33:10,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174381191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:10,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:10,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:10,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382756260] [2023-12-25 05:33:10,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:10,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:10,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:10,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:10,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:10,036 INFO L87 Difference]: Start difference. First operand 501 states and 830 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:10,237 INFO L93 Difference]: Finished difference Result 994 states and 1653 transitions. [2023-12-25 05:33:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:10,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 81 [2023-12-25 05:33:10,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:10,241 INFO L225 Difference]: With dead ends: 994 [2023-12-25 05:33:10,241 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 05:33:10,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:33:10,262 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 29 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:10,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 5591 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:10,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 05:33:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-25 05:33:10,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 381 states have (on average 1.669291338582677) internal successors, (636), 397 states have internal predecessors, (636), 98 states have call successors, (98), 23 states have call predecessors, (98), 21 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-25 05:33:10,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 829 transitions. [2023-12-25 05:33:10,289 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 829 transitions. Word has length 81 [2023-12-25 05:33:10,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:10,290 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 829 transitions. [2023-12-25 05:33:10,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:10,291 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 829 transitions. [2023-12-25 05:33:10,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 05:33:10,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:10,293 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:10,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-25 05:33:10,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:10,502 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:10,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:10,503 INFO L85 PathProgramCache]: Analyzing trace with hash 751026481, now seen corresponding path program 1 times [2023-12-25 05:33:10,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:10,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115662597] [2023-12-25 05:33:10,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:10,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:10,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:10,505 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:10,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:33:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:10,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:10,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:10,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:10,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:10,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115662597] [2023-12-25 05:33:10,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115662597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:10,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:10,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:10,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251115881] [2023-12-25 05:33:10,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:10,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:10,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:10,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:10,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:10,867 INFO L87 Difference]: Start difference. First operand 501 states and 829 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:11,051 INFO L93 Difference]: Finished difference Result 994 states and 1651 transitions. [2023-12-25 05:33:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:11,052 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 82 [2023-12-25 05:33:11,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:11,056 INFO L225 Difference]: With dead ends: 994 [2023-12-25 05:33:11,056 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 05:33:11,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:33:11,060 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 26 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:11,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5591 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:11,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 05:33:11,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-25 05:33:11,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 381 states have (on average 1.6666666666666667) internal successors, (635), 397 states have internal predecessors, (635), 98 states have call successors, (98), 23 states have call predecessors, (98), 21 states have return successors, (95), 93 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-25 05:33:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 828 transitions. [2023-12-25 05:33:11,079 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 828 transitions. Word has length 82 [2023-12-25 05:33:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:11,080 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 828 transitions. [2023-12-25 05:33:11,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:33:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 828 transitions. [2023-12-25 05:33:11,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 05:33:11,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:11,083 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:11,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:11,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:11,293 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:11,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:11,294 INFO L85 PathProgramCache]: Analyzing trace with hash -233715614, now seen corresponding path program 1 times [2023-12-25 05:33:11,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:11,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830082052] [2023-12-25 05:33:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:11,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:11,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:11,296 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:11,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:33:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:11,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:11,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:33:11,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:11,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:11,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830082052] [2023-12-25 05:33:11,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830082052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:11,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:11,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:11,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725006707] [2023-12-25 05:33:11,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:11,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:11,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:11,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:11,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:11,702 INFO L87 Difference]: Start difference. First operand 501 states and 828 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-25 05:33:12,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:12,012 INFO L93 Difference]: Finished difference Result 1423 states and 2374 transitions. [2023-12-25 05:33:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:33:12,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 83 [2023-12-25 05:33:12,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:12,018 INFO L225 Difference]: With dead ends: 1423 [2023-12-25 05:33:12,019 INFO L226 Difference]: Without dead ends: 934 [2023-12-25 05:33:12,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:12,024 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 675 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:12,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 2430 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:33:12,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-12-25 05:33:12,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 927. [2023-12-25 05:33:12,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 709 states have (on average 1.6262341325811) internal successors, (1153), 739 states have internal predecessors, (1153), 178 states have call successors, (178), 43 states have call predecessors, (178), 39 states have return successors, (179), 169 states have call predecessors, (179), 174 states have call successors, (179) [2023-12-25 05:33:12,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1510 transitions. [2023-12-25 05:33:12,059 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1510 transitions. Word has length 83 [2023-12-25 05:33:12,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:12,059 INFO L495 AbstractCegarLoop]: Abstraction has 927 states and 1510 transitions. [2023-12-25 05:33:12,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-25 05:33:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1510 transitions. [2023-12-25 05:33:12,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:33:12,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:12,061 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:12,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:12,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:12,270 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:12,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:12,270 INFO L85 PathProgramCache]: Analyzing trace with hash 781897754, now seen corresponding path program 1 times [2023-12-25 05:33:12,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:12,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810982937] [2023-12-25 05:33:12,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:12,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:12,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:12,272 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:12,280 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 (12)] Waiting until timeout for monitored process [2023-12-25 05:33:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:12,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:12,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:33:12,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:12,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:12,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810982937] [2023-12-25 05:33:12,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810982937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:12,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:12,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:12,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505472429] [2023-12-25 05:33:12,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:12,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:12,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:12,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:12,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:12,663 INFO L87 Difference]: Start difference. First operand 927 states and 1510 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:33:13,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:13,263 INFO L93 Difference]: Finished difference Result 2303 states and 3820 transitions. [2023-12-25 05:33:13,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:13,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 87 [2023-12-25 05:33:13,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:13,274 INFO L225 Difference]: With dead ends: 2303 [2023-12-25 05:33:13,274 INFO L226 Difference]: Without dead ends: 1388 [2023-12-25 05:33:13,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:13,281 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 761 mSDsluCounter, 3470 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:13,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 4431 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:33:13,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2023-12-25 05:33:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1379. [2023-12-25 05:33:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1058 states have (on average 1.6446124763705103) internal successors, (1740), 1101 states have internal predecessors, (1740), 261 states have call successors, (261), 63 states have call predecessors, (261), 59 states have return successors, (280), 252 states have call predecessors, (280), 256 states have call successors, (280) [2023-12-25 05:33:13,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2281 transitions. [2023-12-25 05:33:13,333 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2281 transitions. Word has length 87 [2023-12-25 05:33:13,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:13,333 INFO L495 AbstractCegarLoop]: Abstraction has 1379 states and 2281 transitions. [2023-12-25 05:33:13,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:33:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2281 transitions. [2023-12-25 05:33:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 05:33:13,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:13,335 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:13,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:13,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:13,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:13,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:13,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1580315322, now seen corresponding path program 1 times [2023-12-25 05:33:13,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:13,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366443581] [2023-12-25 05:33:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:13,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:13,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:13,546 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:13,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:33:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:13,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:13,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:13,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:33:13,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:13,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:13,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366443581] [2023-12-25 05:33:13,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366443581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:13,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:13,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:13,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015817953] [2023-12-25 05:33:13,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:13,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:13,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:13,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:13,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:13,929 INFO L87 Difference]: Start difference. First operand 1379 states and 2281 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:33:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:14,644 INFO L93 Difference]: Finished difference Result 4145 states and 7017 transitions. [2023-12-25 05:33:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:14,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 90 [2023-12-25 05:33:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:14,665 INFO L225 Difference]: With dead ends: 4145 [2023-12-25 05:33:14,665 INFO L226 Difference]: Without dead ends: 2778 [2023-12-25 05:33:14,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:14,677 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 844 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 4282 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:14,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 4282 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:33:14,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2023-12-25 05:33:14,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2704. [2023-12-25 05:33:14,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2704 states, 2082 states have (on average 1.6397694524495676) internal successors, (3414), 2166 states have internal predecessors, (3414), 502 states have call successors, (502), 123 states have call predecessors, (502), 119 states have return successors, (639), 490 states have call predecessors, (639), 494 states have call successors, (639) [2023-12-25 05:33:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2704 states to 2704 states and 4555 transitions. [2023-12-25 05:33:14,812 INFO L78 Accepts]: Start accepts. Automaton has 2704 states and 4555 transitions. Word has length 90 [2023-12-25 05:33:14,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:14,813 INFO L495 AbstractCegarLoop]: Abstraction has 2704 states and 4555 transitions. [2023-12-25 05:33:14,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:33:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2704 states and 4555 transitions. [2023-12-25 05:33:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-25 05:33:14,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:14,815 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:14,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:15,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:15,029 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:15,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:15,030 INFO L85 PathProgramCache]: Analyzing trace with hash 852566766, now seen corresponding path program 1 times [2023-12-25 05:33:15,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:15,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42343277] [2023-12-25 05:33:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:15,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:15,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:15,032 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:15,034 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 (14)] Waiting until timeout for monitored process [2023-12-25 05:33:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:15,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:15,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:33:15,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:15,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:15,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42343277] [2023-12-25 05:33:15,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42343277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:15,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:15,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:15,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643954153] [2023-12-25 05:33:15,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:15,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:15,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:15,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:15,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:15,371 INFO L87 Difference]: Start difference. First operand 2704 states and 4555 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:33:15,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:15,666 INFO L93 Difference]: Finished difference Result 5414 states and 9244 transitions. [2023-12-25 05:33:15,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:33:15,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2023-12-25 05:33:15,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:15,689 INFO L225 Difference]: With dead ends: 5414 [2023-12-25 05:33:15,689 INFO L226 Difference]: Without dead ends: 2722 [2023-12-25 05:33:15,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:15,719 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 19 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:15,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2361 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:15,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2023-12-25 05:33:15,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2716. [2023-12-25 05:33:15,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2091 states have (on average 1.6355810616929698) internal successors, (3420), 2175 states have internal predecessors, (3420), 502 states have call successors, (502), 129 states have call predecessors, (502), 122 states have return successors, (623), 487 states have call predecessors, (623), 494 states have call successors, (623) [2023-12-25 05:33:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4545 transitions. [2023-12-25 05:33:15,862 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4545 transitions. Word has length 91 [2023-12-25 05:33:15,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:15,864 INFO L495 AbstractCegarLoop]: Abstraction has 2716 states and 4545 transitions. [2023-12-25 05:33:15,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:33:15,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4545 transitions. [2023-12-25 05:33:15,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 05:33:15,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:15,866 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] [2023-12-25 05:33:15,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:16,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:16,077 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:16,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:16,078 INFO L85 PathProgramCache]: Analyzing trace with hash 488160392, now seen corresponding path program 1 times [2023-12-25 05:33:16,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:16,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492461388] [2023-12-25 05:33:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:16,079 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:16,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:16,082 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:16,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:33:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:16,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:16,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:33:16,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:16,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:16,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492461388] [2023-12-25 05:33:16,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492461388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:16,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:16,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:16,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974649080] [2023-12-25 05:33:16,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:16,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:16,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:16,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:16,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:16,482 INFO L87 Difference]: Start difference. First operand 2716 states and 4545 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:33:17,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:17,320 INFO L93 Difference]: Finished difference Result 8218 states and 14152 transitions. [2023-12-25 05:33:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:17,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 99 [2023-12-25 05:33:17,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:17,361 INFO L225 Difference]: With dead ends: 8218 [2023-12-25 05:33:17,361 INFO L226 Difference]: Without dead ends: 5514 [2023-12-25 05:33:17,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:17,382 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 819 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:17,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 4098 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:33:17,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5514 states. [2023-12-25 05:33:17,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5514 to 5402. [2023-12-25 05:33:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 4166 states have (on average 1.630580892942871) internal successors, (6793), 4332 states have internal predecessors, (6793), 987 states have call successors, (987), 255 states have call predecessors, (987), 248 states have return successors, (1460), 966 states have call predecessors, (1460), 973 states have call successors, (1460) [2023-12-25 05:33:17,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 9240 transitions. [2023-12-25 05:33:17,730 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 9240 transitions. Word has length 99 [2023-12-25 05:33:17,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:17,731 INFO L495 AbstractCegarLoop]: Abstraction has 5402 states and 9240 transitions. [2023-12-25 05:33:17,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-25 05:33:17,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 9240 transitions. [2023-12-25 05:33:17,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 05:33:17,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:17,733 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] [2023-12-25 05:33:17,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:17,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:17,944 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:17,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:17,945 INFO L85 PathProgramCache]: Analyzing trace with hash -52508264, now seen corresponding path program 1 times [2023-12-25 05:33:17,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:17,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825192548] [2023-12-25 05:33:17,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:17,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:17,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:17,947 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:17,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:33:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:18,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:18,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-25 05:33:18,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:18,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:18,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825192548] [2023-12-25 05:33:18,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825192548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:18,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:18,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:18,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619496315] [2023-12-25 05:33:18,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:18,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:18,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:18,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:18,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:18,279 INFO L87 Difference]: Start difference. First operand 5402 states and 9240 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:33:18,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:18,668 INFO L93 Difference]: Finished difference Result 10864 states and 18913 transitions. [2023-12-25 05:33:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:33:18,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2023-12-25 05:33:18,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:18,718 INFO L225 Difference]: With dead ends: 10864 [2023-12-25 05:33:18,718 INFO L226 Difference]: Without dead ends: 5474 [2023-12-25 05:33:18,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:18,756 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 21 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:18,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2359 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:18,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2023-12-25 05:33:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5462. [2023-12-25 05:33:18,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 4220 states have (on average 1.6239336492890994) internal successors, (6853), 4374 states have internal predecessors, (6853), 987 states have call successors, (987), 279 states have call predecessors, (987), 254 states have return successors, (1436), 960 states have call predecessors, (1436), 973 states have call successors, (1436) [2023-12-25 05:33:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 9276 transitions. [2023-12-25 05:33:19,031 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 9276 transitions. Word has length 100 [2023-12-25 05:33:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:19,031 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 9276 transitions. [2023-12-25 05:33:19,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:33:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 9276 transitions. [2023-12-25 05:33:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:33:19,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:19,034 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] [2023-12-25 05:33:19,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:19,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:19,249 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:19,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:19,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1369573936, now seen corresponding path program 1 times [2023-12-25 05:33:19,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:19,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810273594] [2023-12-25 05:33:19,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:19,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:19,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:19,284 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:19,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:33:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:19,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:19,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 05:33:19,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:19,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:19,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810273594] [2023-12-25 05:33:19,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810273594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:19,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:19,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:19,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720820398] [2023-12-25 05:33:19,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:19,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:19,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:19,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:19,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:19,715 INFO L87 Difference]: Start difference. First operand 5462 states and 9276 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:20,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:20,723 INFO L93 Difference]: Finished difference Result 16536 states and 29242 transitions. [2023-12-25 05:33:20,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:20,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 109 [2023-12-25 05:33:20,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:20,802 INFO L225 Difference]: With dead ends: 16536 [2023-12-25 05:33:20,803 INFO L226 Difference]: Without dead ends: 11086 [2023-12-25 05:33:20,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:20,846 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 799 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 4173 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:20,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 4173 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:33:20,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11086 states. [2023-12-25 05:33:21,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11086 to 10930. [2023-12-25 05:33:21,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10930 states, 8451 states have (on average 1.618980002366584) internal successors, (13682), 8757 states have internal predecessors, (13682), 1960 states have call successors, (1960), 555 states have call predecessors, (1960), 518 states have return successors, (3505), 1921 states have call predecessors, (3505), 1934 states have call successors, (3505) [2023-12-25 05:33:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10930 states to 10930 states and 19147 transitions. [2023-12-25 05:33:21,595 INFO L78 Accepts]: Start accepts. Automaton has 10930 states and 19147 transitions. Word has length 109 [2023-12-25 05:33:21,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:21,596 INFO L495 AbstractCegarLoop]: Abstraction has 10930 states and 19147 transitions. [2023-12-25 05:33:21,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-25 05:33:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 10930 states and 19147 transitions. [2023-12-25 05:33:21,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 05:33:21,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:21,598 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] [2023-12-25 05:33:21,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:21,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:21,809 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:21,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:21,810 INFO L85 PathProgramCache]: Analyzing trace with hash 93497256, now seen corresponding path program 1 times [2023-12-25 05:33:21,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:21,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745596829] [2023-12-25 05:33:21,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:21,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:21,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:21,811 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:21,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:33:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:22,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:22,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:22,145 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:33:22,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:22,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:22,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745596829] [2023-12-25 05:33:22,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745596829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:22,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:22,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:22,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383507559] [2023-12-25 05:33:22,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:22,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:22,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:22,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:22,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:22,147 INFO L87 Difference]: Start difference. First operand 10930 states and 19147 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:33:22,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:22,794 INFO L93 Difference]: Finished difference Result 21992 states and 39585 transitions. [2023-12-25 05:33:22,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:33:22,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2023-12-25 05:33:22,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:22,860 INFO L225 Difference]: With dead ends: 21992 [2023-12-25 05:33:22,861 INFO L226 Difference]: Without dead ends: 11074 [2023-12-25 05:33:22,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:22,989 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 21 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:22,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2359 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:22,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2023-12-25 05:33:23,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 11050. [2023-12-25 05:33:23,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11050 states, 8559 states have (on average 1.612571562098376) internal successors, (13802), 8865 states have internal predecessors, (13802), 1960 states have call successors, (1960), 579 states have call predecessors, (1960), 530 states have return successors, (3473), 1909 states have call predecessors, (3473), 1934 states have call successors, (3473) [2023-12-25 05:33:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11050 states to 11050 states and 19235 transitions. [2023-12-25 05:33:23,616 INFO L78 Accepts]: Start accepts. Automaton has 11050 states and 19235 transitions. Word has length 110 [2023-12-25 05:33:23,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:23,617 INFO L495 AbstractCegarLoop]: Abstraction has 11050 states and 19235 transitions. [2023-12-25 05:33:23,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-25 05:33:23,617 INFO L276 IsEmpty]: Start isEmpty. Operand 11050 states and 19235 transitions. [2023-12-25 05:33:23,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:33:23,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:23,619 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:23,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-25 05:33:23,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:23,829 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:23,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:23,829 INFO L85 PathProgramCache]: Analyzing trace with hash 105249586, now seen corresponding path program 1 times [2023-12-25 05:33:23,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:23,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390243524] [2023-12-25 05:33:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:23,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:23,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:23,831 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:23,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:33:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:24,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:24,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:24,323 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:33:24,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:24,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:24,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390243524] [2023-12-25 05:33:24,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390243524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:24,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:24,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:24,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947992366] [2023-12-25 05:33:24,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:24,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:24,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:24,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:24,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:24,326 INFO L87 Difference]: Start difference. First operand 11050 states and 19235 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:25,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:25,941 INFO L93 Difference]: Finished difference Result 33384 states and 61836 transitions. [2023-12-25 05:33:25,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:25,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 120 [2023-12-25 05:33:25,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:26,115 INFO L225 Difference]: With dead ends: 33384 [2023-12-25 05:33:26,116 INFO L226 Difference]: Without dead ends: 22346 [2023-12-25 05:33:26,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:26,253 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 780 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:26,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 4059 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:33:26,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22346 states. [2023-12-25 05:33:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22346 to 22166. [2023-12-25 05:33:27,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22166 states, 17174 states have (on average 1.607720973564691) internal successors, (27611), 17784 states have internal predecessors, (27611), 3909 states have call successors, (3909), 1155 states have call predecessors, (3909), 1082 states have return successors, (8998), 3834 states have call predecessors, (8998), 3859 states have call successors, (8998) [2023-12-25 05:33:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22166 states to 22166 states and 40518 transitions. [2023-12-25 05:33:27,935 INFO L78 Accepts]: Start accepts. Automaton has 22166 states and 40518 transitions. Word has length 120 [2023-12-25 05:33:27,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:27,936 INFO L495 AbstractCegarLoop]: Abstraction has 22166 states and 40518 transitions. [2023-12-25 05:33:27,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:27,936 INFO L276 IsEmpty]: Start isEmpty. Operand 22166 states and 40518 transitions. [2023-12-25 05:33:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:33:27,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:27,938 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:27,947 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 [2023-12-25 05:33:28,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:28,147 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:28,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash -693866642, now seen corresponding path program 1 times [2023-12-25 05:33:28,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:28,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902281577] [2023-12-25 05:33:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:28,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:28,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:28,150 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:28,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:33:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:28,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:33:28,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:33:28,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:28,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:28,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902281577] [2023-12-25 05:33:28,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902281577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:28,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:28,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:33:28,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278670984] [2023-12-25 05:33:28,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:28,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:33:28,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:28,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:33:28,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:28,566 INFO L87 Difference]: Start difference. First operand 22166 states and 40518 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:30,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:30,864 INFO L93 Difference]: Finished difference Result 44452 states and 83131 transitions. [2023-12-25 05:33:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:30,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 121 [2023-12-25 05:33:30,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:30,991 INFO L225 Difference]: With dead ends: 44452 [2023-12-25 05:33:30,991 INFO L226 Difference]: Without dead ends: 22298 [2023-12-25 05:33:31,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:31,442 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 602 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:31,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 2873 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 05:33:31,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22298 states. [2023-12-25 05:33:32,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22298 to 22230. [2023-12-25 05:33:32,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22230 states, 17222 states have (on average 1.6060271745441876) internal successors, (27659), 17832 states have internal predecessors, (27659), 3909 states have call successors, (3909), 1171 states have call predecessors, (3909), 1098 states have return successors, (8998), 3834 states have call predecessors, (8998), 3859 states have call successors, (8998) [2023-12-25 05:33:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22230 states to 22230 states and 40566 transitions. [2023-12-25 05:33:32,911 INFO L78 Accepts]: Start accepts. Automaton has 22230 states and 40566 transitions. Word has length 121 [2023-12-25 05:33:32,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:32,912 INFO L495 AbstractCegarLoop]: Abstraction has 22230 states and 40566 transitions. [2023-12-25 05:33:32,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:32,912 INFO L276 IsEmpty]: Start isEmpty. Operand 22230 states and 40566 transitions. [2023-12-25 05:33:32,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:33:32,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:32,914 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:32,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:33,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:33,124 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:33,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:33,125 INFO L85 PathProgramCache]: Analyzing trace with hash -593590013, now seen corresponding path program 1 times [2023-12-25 05:33:33,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:33,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647643479] [2023-12-25 05:33:33,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:33,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:33,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:33,128 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:33,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:33:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:33,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:33:33,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:33:33,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:33,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:33,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647643479] [2023-12-25 05:33:33,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647643479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:33,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:33,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:33:33,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402094449] [2023-12-25 05:33:33,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:33,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:33:33,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:33,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:33:33,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:33,633 INFO L87 Difference]: Start difference. First operand 22230 states and 40566 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:35,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:35,796 INFO L93 Difference]: Finished difference Result 44596 states and 83227 transitions. [2023-12-25 05:33:35,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:35,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 122 [2023-12-25 05:33:35,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:35,933 INFO L225 Difference]: With dead ends: 44596 [2023-12-25 05:33:35,934 INFO L226 Difference]: Without dead ends: 22378 [2023-12-25 05:33:36,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:36,294 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 603 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 2692 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:36,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 2692 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:33:36,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22378 states. [2023-12-25 05:33:37,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22378 to 22310. [2023-12-25 05:33:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22310 states, 17286 states have (on average 1.603783408538702) internal successors, (27723), 17896 states have internal predecessors, (27723), 3909 states have call successors, (3909), 1187 states have call predecessors, (3909), 1114 states have return successors, (8998), 3834 states have call predecessors, (8998), 3859 states have call successors, (8998) [2023-12-25 05:33:38,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22310 states to 22310 states and 40630 transitions. [2023-12-25 05:33:38,201 INFO L78 Accepts]: Start accepts. Automaton has 22310 states and 40630 transitions. Word has length 122 [2023-12-25 05:33:38,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:38,203 INFO L495 AbstractCegarLoop]: Abstraction has 22310 states and 40630 transitions. [2023-12-25 05:33:38,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:38,203 INFO L276 IsEmpty]: Start isEmpty. Operand 22310 states and 40630 transitions. [2023-12-25 05:33:38,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 05:33:38,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:38,205 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:38,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:38,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:38,417 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:38,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:38,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1726251914, now seen corresponding path program 1 times [2023-12-25 05:33:38,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:38,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344442170] [2023-12-25 05:33:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:38,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:38,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:38,419 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:38,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:33:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:38,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:33:38,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:38,839 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:33:38,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:38,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:38,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344442170] [2023-12-25 05:33:38,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344442170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:38,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:38,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:33:38,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39091447] [2023-12-25 05:33:38,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:38,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:33:38,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:38,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:33:38,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:38,842 INFO L87 Difference]: Start difference. First operand 22310 states and 40630 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:41,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:41,154 INFO L93 Difference]: Finished difference Result 44772 states and 83363 transitions. [2023-12-25 05:33:41,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:41,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 123 [2023-12-25 05:33:41,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:41,294 INFO L225 Difference]: With dead ends: 44772 [2023-12-25 05:33:41,294 INFO L226 Difference]: Without dead ends: 22474 [2023-12-25 05:33:41,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:41,633 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 603 mSDsluCounter, 1861 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:41,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 2700 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:33:41,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22474 states. [2023-12-25 05:33:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22474 to 22406. [2023-12-25 05:33:42,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22406 states, 17366 states have (on average 1.6010019578486698) internal successors, (27803), 17976 states have internal predecessors, (27803), 3909 states have call successors, (3909), 1203 states have call predecessors, (3909), 1130 states have return successors, (8998), 3834 states have call predecessors, (8998), 3859 states have call successors, (8998) [2023-12-25 05:33:42,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22406 states to 22406 states and 40710 transitions. [2023-12-25 05:33:42,894 INFO L78 Accepts]: Start accepts. Automaton has 22406 states and 40710 transitions. Word has length 123 [2023-12-25 05:33:42,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:42,895 INFO L495 AbstractCegarLoop]: Abstraction has 22406 states and 40710 transitions. [2023-12-25 05:33:42,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 22406 states and 40710 transitions. [2023-12-25 05:33:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:33:42,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:42,896 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:42,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:43,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:43,105 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:43,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:43,106 INFO L85 PathProgramCache]: Analyzing trace with hash -161825953, now seen corresponding path program 1 times [2023-12-25 05:33:43,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:43,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126718796] [2023-12-25 05:33:43,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:43,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:43,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:43,107 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:43,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:33:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:43,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:33:43,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:33:43,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:43,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:43,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126718796] [2023-12-25 05:33:43,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126718796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:43,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:43,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:33:43,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662139237] [2023-12-25 05:33:43,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:43,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:33:43,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:33:43,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:43,536 INFO L87 Difference]: Start difference. First operand 22406 states and 40710 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:45,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:45,798 INFO L93 Difference]: Finished difference Result 44980 states and 83535 transitions. [2023-12-25 05:33:45,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:45,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2023-12-25 05:33:45,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:45,916 INFO L225 Difference]: With dead ends: 44980 [2023-12-25 05:33:45,916 INFO L226 Difference]: Without dead ends: 22586 [2023-12-25 05:33:46,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:46,221 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 601 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:46,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 2878 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:33:46,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22586 states. [2023-12-25 05:33:47,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22586 to 22518. [2023-12-25 05:33:47,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22518 states, 17462 states have (on average 1.597697858206391) internal successors, (27899), 18072 states have internal predecessors, (27899), 3909 states have call successors, (3909), 1219 states have call predecessors, (3909), 1146 states have return successors, (8998), 3834 states have call predecessors, (8998), 3859 states have call successors, (8998) [2023-12-25 05:33:47,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22518 states to 22518 states and 40806 transitions. [2023-12-25 05:33:47,418 INFO L78 Accepts]: Start accepts. Automaton has 22518 states and 40806 transitions. Word has length 124 [2023-12-25 05:33:47,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:47,418 INFO L495 AbstractCegarLoop]: Abstraction has 22518 states and 40806 transitions. [2023-12-25 05:33:47,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:47,419 INFO L276 IsEmpty]: Start isEmpty. Operand 22518 states and 40806 transitions. [2023-12-25 05:33:47,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:33:47,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:47,420 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:47,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:47,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:47,632 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:47,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:47,632 INFO L85 PathProgramCache]: Analyzing trace with hash 648568742, now seen corresponding path program 1 times [2023-12-25 05:33:47,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:47,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120742578] [2023-12-25 05:33:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:47,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:47,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:47,634 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:47,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:33:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:47,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:33:47,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:33:47,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:47,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120742578] [2023-12-25 05:33:47,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120742578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:47,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:47,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:47,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391355586] [2023-12-25 05:33:47,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:47,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:47,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:47,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:47,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:47,958 INFO L87 Difference]: Start difference. First operand 22518 states and 40806 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:33:49,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:49,966 INFO L93 Difference]: Finished difference Result 44182 states and 84059 transitions. [2023-12-25 05:33:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:33:49,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2023-12-25 05:33:49,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:50,154 INFO L225 Difference]: With dead ends: 44182 [2023-12-25 05:33:50,155 INFO L226 Difference]: Without dead ends: 27320 [2023-12-25 05:33:50,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:33:50,316 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 161 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:50,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 2478 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27320 states. [2023-12-25 05:33:51,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27320 to 25750. [2023-12-25 05:33:51,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25750 states, 19222 states have (on average 1.5879200915617522) internal successors, (30523), 20248 states have internal predecessors, (30523), 5349 states have call successors, (5349), 1219 states have call predecessors, (5349), 1178 states have return successors, (12570), 5274 states have call predecessors, (12570), 5299 states have call successors, (12570) [2023-12-25 05:33:51,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25750 states to 25750 states and 48442 transitions. [2023-12-25 05:33:51,971 INFO L78 Accepts]: Start accepts. Automaton has 25750 states and 48442 transitions. Word has length 125 [2023-12-25 05:33:51,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:51,971 INFO L495 AbstractCegarLoop]: Abstraction has 25750 states and 48442 transitions. [2023-12-25 05:33:51,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:33:51,972 INFO L276 IsEmpty]: Start isEmpty. Operand 25750 states and 48442 transitions. [2023-12-25 05:33:51,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:33:51,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:51,973 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:51,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:52,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:52,174 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:52,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:52,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1634248908, now seen corresponding path program 1 times [2023-12-25 05:33:52,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:52,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176604552] [2023-12-25 05:33:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:52,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:33:52,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:52,176 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:33:52,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:33:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:52,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:52,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:52,553 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:33:52,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:52,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:52,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176604552] [2023-12-25 05:33:52,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176604552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:52,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:52,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:52,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968975094] [2023-12-25 05:33:52,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:52,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:52,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:52,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:52,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:52,555 INFO L87 Difference]: Start difference. First operand 25750 states and 48442 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:33:56,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:56,865 INFO L93 Difference]: Finished difference Result 77468 states and 156150 transitions. [2023-12-25 05:33:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:56,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2023-12-25 05:33:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:57,256 INFO L225 Difference]: With dead ends: 77468 [2023-12-25 05:33:57,256 INFO L226 Difference]: Without dead ends: 51730 [2023-12-25 05:33:57,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:57,893 INFO L413 NwaCegarLoop]: 1040 mSDtfsCounter, 770 mSDsluCounter, 3724 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 4764 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:57,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 4764 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:33:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51730 states. [2023-12-25 05:34:00,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51730 to 51678. [2023-12-25 05:34:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51678 states, 38582 states have (on average 1.585817220465502) internal successors, (61184), 40632 states have internal predecessors, (61184), 10693 states have call successors, (10693), 2435 states have call predecessors, (10693), 2402 states have return successors, (30449), 10594 states have call predecessors, (30449), 10595 states have call successors, (30449) [2023-12-25 05:34:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51678 states to 51678 states and 102326 transitions. [2023-12-25 05:34:01,878 INFO L78 Accepts]: Start accepts. Automaton has 51678 states and 102326 transitions. Word has length 132 [2023-12-25 05:34:01,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:01,879 INFO L495 AbstractCegarLoop]: Abstraction has 51678 states and 102326 transitions. [2023-12-25 05:34:01,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:34:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand 51678 states and 102326 transitions. [2023-12-25 05:34:01,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:34:01,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:01,881 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:01,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:02,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:02,082 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:02,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:02,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1185552269, now seen corresponding path program 1 times [2023-12-25 05:34:02,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:02,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123656700] [2023-12-25 05:34:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:02,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:02,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:02,085 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:02,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:34:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:02,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:34:02,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:34:02,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:02,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:02,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123656700] [2023-12-25 05:34:02,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123656700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:02,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:02,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:34:02,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096188745] [2023-12-25 05:34:02,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:02,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:02,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:02,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:02,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:02,530 INFO L87 Difference]: Start difference. First operand 51678 states and 102326 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:34:08,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:08,324 INFO L93 Difference]: Finished difference Result 100962 states and 202568 transitions. [2023-12-25 05:34:08,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:08,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2023-12-25 05:34:08,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:08,886 INFO L225 Difference]: With dead ends: 100962 [2023-12-25 05:34:08,887 INFO L226 Difference]: Without dead ends: 49166 [2023-12-25 05:34:09,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:09,771 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 609 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:09,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 2501 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:34:09,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49166 states. [2023-12-25 05:34:12,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49166 to 49098. [2023-12-25 05:34:12,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49098 states, 36502 states have (on average 1.5998575420524903) internal successors, (58398), 38552 states have internal predecessors, (58398), 10339 states have call successors, (10339), 2209 states have call predecessors, (10339), 2256 states have return successors, (26888), 10320 states have call predecessors, (26888), 10241 states have call successors, (26888) [2023-12-25 05:34:13,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49098 states to 49098 states and 95625 transitions. [2023-12-25 05:34:13,556 INFO L78 Accepts]: Start accepts. Automaton has 49098 states and 95625 transitions. Word has length 132 [2023-12-25 05:34:13,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:13,557 INFO L495 AbstractCegarLoop]: Abstraction has 49098 states and 95625 transitions. [2023-12-25 05:34:13,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:34:13,557 INFO L276 IsEmpty]: Start isEmpty. Operand 49098 states and 95625 transitions. [2023-12-25 05:34:13,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:34:13,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:13,560 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:13,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:13,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:13,761 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:13,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:13,761 INFO L85 PathProgramCache]: Analyzing trace with hash -232459766, now seen corresponding path program 1 times [2023-12-25 05:34:13,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:13,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029093454] [2023-12-25 05:34:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:13,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:13,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:13,763 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:13,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:34:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:14,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:14,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-25 05:34:14,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:14,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:14,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029093454] [2023-12-25 05:34:14,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029093454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:14,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:14,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:14,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011664980] [2023-12-25 05:34:14,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:14,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:14,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:14,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:14,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:14,124 INFO L87 Difference]: Start difference. First operand 49098 states and 95625 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:34:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:18,362 INFO L93 Difference]: Finished difference Result 97492 states and 187720 transitions. [2023-12-25 05:34:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:34:18,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2023-12-25 05:34:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:18,673 INFO L225 Difference]: With dead ends: 97492 [2023-12-25 05:34:18,674 INFO L226 Difference]: Without dead ends: 48758 [2023-12-25 05:34:19,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:34:19,316 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 22 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:19,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5591 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48758 states. [2023-12-25 05:34:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48758 to 48310. [2023-12-25 05:34:21,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48310 states, 35973 states have (on average 1.604230950991021) internal successors, (57709), 37991 states have internal predecessors, (57709), 10192 states have call successors, (10192), 2113 states have call predecessors, (10192), 2144 states have return successors, (25055), 10189 states have call predecessors, (25055), 10142 states have call successors, (25055) [2023-12-25 05:34:22,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48310 states to 48310 states and 92956 transitions. [2023-12-25 05:34:22,644 INFO L78 Accepts]: Start accepts. Automaton has 48310 states and 92956 transitions. Word has length 132 [2023-12-25 05:34:22,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:22,644 INFO L495 AbstractCegarLoop]: Abstraction has 48310 states and 92956 transitions. [2023-12-25 05:34:22,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:34:22,645 INFO L276 IsEmpty]: Start isEmpty. Operand 48310 states and 92956 transitions. [2023-12-25 05:34:22,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-25 05:34:22,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:22,652 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:22,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-25 05:34:22,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:22,865 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:22,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:22,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1892260297, now seen corresponding path program 1 times [2023-12-25 05:34:22,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:22,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876687768] [2023-12-25 05:34:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:22,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:22,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:22,868 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:22,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 05:34:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:23,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:34:23,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-25 05:34:23,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:23,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:23,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876687768] [2023-12-25 05:34:23,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876687768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:23,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:23,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:23,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060362737] [2023-12-25 05:34:23,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:23,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:23,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:23,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:23,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:23,329 INFO L87 Difference]: Start difference. First operand 48310 states and 92956 transitions. Second operand has 6 states, 5 states have (on average 20.6) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:34:28,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:28,111 INFO L93 Difference]: Finished difference Result 96964 states and 189966 transitions. [2023-12-25 05:34:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:34:28,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 168 [2023-12-25 05:34:28,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:28,454 INFO L225 Difference]: With dead ends: 96964 [2023-12-25 05:34:28,455 INFO L226 Difference]: Without dead ends: 48378 [2023-12-25 05:34:29,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:34:29,196 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 751 mSDsluCounter, 3017 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:29,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 3806 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:34:29,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48378 states. [2023-12-25 05:34:31,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48378 to 48118. [2023-12-25 05:34:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48118 states, 35781 states have (on average 1.601212934238842) internal successors, (57293), 37799 states have internal predecessors, (57293), 10192 states have call successors, (10192), 2113 states have call predecessors, (10192), 2144 states have return successors, (25055), 10189 states have call predecessors, (25055), 10142 states have call successors, (25055) [2023-12-25 05:34:32,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48118 states to 48118 states and 92540 transitions. [2023-12-25 05:34:32,493 INFO L78 Accepts]: Start accepts. Automaton has 48118 states and 92540 transitions. Word has length 168 [2023-12-25 05:34:32,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:32,493 INFO L495 AbstractCegarLoop]: Abstraction has 48118 states and 92540 transitions. [2023-12-25 05:34:32,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:34:32,494 INFO L276 IsEmpty]: Start isEmpty. Operand 48118 states and 92540 transitions. [2023-12-25 05:34:32,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-25 05:34:32,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:32,500 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:32,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:32,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:32,701 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:32,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:32,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1735327401, now seen corresponding path program 1 times [2023-12-25 05:34:32,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:32,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000254913] [2023-12-25 05:34:32,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:32,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:32,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:32,703 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:32,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 05:34:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:33,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:34:33,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-25 05:34:33,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:33,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:33,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000254913] [2023-12-25 05:34:33,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000254913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:33,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:33,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:33,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504913498] [2023-12-25 05:34:33,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:33,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:33,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:33,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:33,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:33,137 INFO L87 Difference]: Start difference. First operand 48118 states and 92540 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:34:37,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:37,520 INFO L93 Difference]: Finished difference Result 96580 states and 189134 transitions. [2023-12-25 05:34:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:34:37,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 174 [2023-12-25 05:34:37,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:37,841 INFO L225 Difference]: With dead ends: 96580 [2023-12-25 05:34:37,841 INFO L226 Difference]: Without dead ends: 48186 [2023-12-25 05:34:38,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:34:38,567 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 722 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 3807 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:38,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 3807 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:34:38,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48186 states. [2023-12-25 05:34:40,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48186 to 47926. [2023-12-25 05:34:40,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47926 states, 35589 states have (on average 1.598162353536205) internal successors, (56877), 37607 states have internal predecessors, (56877), 10192 states have call successors, (10192), 2113 states have call predecessors, (10192), 2144 states have return successors, (25055), 10189 states have call predecessors, (25055), 10142 states have call successors, (25055) [2023-12-25 05:34:41,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47926 states to 47926 states and 92124 transitions. [2023-12-25 05:34:41,768 INFO L78 Accepts]: Start accepts. Automaton has 47926 states and 92124 transitions. Word has length 174 [2023-12-25 05:34:41,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:41,769 INFO L495 AbstractCegarLoop]: Abstraction has 47926 states and 92124 transitions. [2023-12-25 05:34:41,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:34:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 47926 states and 92124 transitions. [2023-12-25 05:34:41,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-25 05:34:41,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:41,777 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:41,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:41,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:41,987 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:41,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:41,987 INFO L85 PathProgramCache]: Analyzing trace with hash 76768539, now seen corresponding path program 1 times [2023-12-25 05:34:41,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:41,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106951003] [2023-12-25 05:34:41,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:41,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:41,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:41,989 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:34:41,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 05:34:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:42,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:34:42,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:42,432 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-25 05:34:42,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:42,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:42,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106951003] [2023-12-25 05:34:42,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106951003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:42,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:42,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:42,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658152890] [2023-12-25 05:34:42,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:42,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:42,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:42,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:42,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:42,434 INFO L87 Difference]: Start difference. First operand 47926 states and 92124 transitions. Second operand has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:34:46,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:46,990 INFO L93 Difference]: Finished difference Result 96196 states and 188302 transitions. [2023-12-25 05:34:46,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:34:46,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 180 [2023-12-25 05:34:46,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:47,534 INFO L225 Difference]: With dead ends: 96196 [2023-12-25 05:34:47,534 INFO L226 Difference]: Without dead ends: 47994 [2023-12-25 05:34:48,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:34:48,443 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 694 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 3807 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:48,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 3807 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:34:48,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47994 states. [2023-12-25 05:34:51,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47994 to 47734. [2023-12-25 05:34:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47734 states, 35397 states have (on average 1.5950786789840947) internal successors, (56461), 37415 states have internal predecessors, (56461), 10192 states have call successors, (10192), 2113 states have call predecessors, (10192), 2144 states have return successors, (25055), 10189 states have call predecessors, (25055), 10142 states have call successors, (25055) [2023-12-25 05:34:52,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47734 states to 47734 states and 91708 transitions. [2023-12-25 05:34:52,349 INFO L78 Accepts]: Start accepts. Automaton has 47734 states and 91708 transitions. Word has length 180 [2023-12-25 05:34:52,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:52,350 INFO L495 AbstractCegarLoop]: Abstraction has 47734 states and 91708 transitions. [2023-12-25 05:34:52,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:34:52,351 INFO L276 IsEmpty]: Start isEmpty. Operand 47734 states and 91708 transitions. [2023-12-25 05:34:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-25 05:34:52,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:52,362 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:52,376 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 [2023-12-25 05:34:52,573 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 [2023-12-25 05:34:52,573 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:52,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:52,574 INFO L85 PathProgramCache]: Analyzing trace with hash -635526519, now seen corresponding path program 1 times [2023-12-25 05:34:52,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:52,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60179143] [2023-12-25 05:34:52,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:52,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:52,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:52,576 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) [2023-12-25 05:34:52,577 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 [2023-12-25 05:34:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:52,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:34:52,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-12-25 05:34:53,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:53,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:53,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60179143] [2023-12-25 05:34:53,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60179143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:53,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:53,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:53,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876356375] [2023-12-25 05:34:53,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:53,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:53,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:53,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:53,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:53,029 INFO L87 Difference]: Start difference. First operand 47734 states and 91708 transitions. Second operand has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:34:57,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:57,204 INFO L93 Difference]: Finished difference Result 95812 states and 187470 transitions. [2023-12-25 05:34:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:34:57,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 186 [2023-12-25 05:34:57,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:57,669 INFO L225 Difference]: With dead ends: 95812 [2023-12-25 05:34:57,669 INFO L226 Difference]: Without dead ends: 47802 [2023-12-25 05:34:58,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:34:58,321 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 666 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 3807 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:58,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 3807 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:34:58,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47802 states. [2023-12-25 05:35:00,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47802 to 47542. [2023-12-25 05:35:00,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47542 states, 35205 states have (on average 1.591961369123704) internal successors, (56045), 37223 states have internal predecessors, (56045), 10192 states have call successors, (10192), 2113 states have call predecessors, (10192), 2144 states have return successors, (25055), 10189 states have call predecessors, (25055), 10142 states have call successors, (25055) [2023-12-25 05:35:01,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47542 states to 47542 states and 91292 transitions. [2023-12-25 05:35:01,581 INFO L78 Accepts]: Start accepts. Automaton has 47542 states and 91292 transitions. Word has length 186 [2023-12-25 05:35:01,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:01,582 INFO L495 AbstractCegarLoop]: Abstraction has 47542 states and 91292 transitions. [2023-12-25 05:35:01,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:35:01,582 INFO L276 IsEmpty]: Start isEmpty. Operand 47542 states and 91292 transitions. [2023-12-25 05:35:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-25 05:35:01,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:01,590 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:01,600 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:01,800 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 [2023-12-25 05:35:01,800 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:01,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:01,801 INFO L85 PathProgramCache]: Analyzing trace with hash 235874797, now seen corresponding path program 1 times [2023-12-25 05:35:01,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:01,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304040329] [2023-12-25 05:35:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:01,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:01,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:01,802 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) [2023-12-25 05:35:01,803 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 [2023-12-25 05:35:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:02,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:02,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-12-25 05:35:02,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:02,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:02,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304040329] [2023-12-25 05:35:02,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304040329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:02,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:02,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756661428] [2023-12-25 05:35:02,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:02,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:02,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:02,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:02,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:02,210 INFO L87 Difference]: Start difference. First operand 47542 states and 91292 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:35:13,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:13,763 INFO L93 Difference]: Finished difference Result 157996 states and 327917 transitions. [2023-12-25 05:35:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:13,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2023-12-25 05:35:13,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:15,037 INFO L225 Difference]: With dead ends: 157996 [2023-12-25 05:35:15,037 INFO L226 Difference]: Without dead ends: 110466 [2023-12-25 05:35:16,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:16,157 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 813 mSDsluCounter, 3191 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 4045 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:16,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 4045 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:16,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110466 states. [2023-12-25 05:35:23,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110466 to 95582. [2023-12-25 05:35:23,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95582 states, 70820 states have (on average 1.5885343123411466) internal successors, (112500), 74790 states have internal predecessors, (112500), 20379 states have call successors, (20379), 4223 states have call predecessors, (20379), 4382 states have return successors, (61596), 20536 states have call predecessors, (61596), 20281 states have call successors, (61596) [2023-12-25 05:35:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95582 states to 95582 states and 194475 transitions. [2023-12-25 05:35:25,941 INFO L78 Accepts]: Start accepts. Automaton has 95582 states and 194475 transitions. Word has length 192 [2023-12-25 05:35:25,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:25,942 INFO L495 AbstractCegarLoop]: Abstraction has 95582 states and 194475 transitions. [2023-12-25 05:35:25,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:35:25,942 INFO L276 IsEmpty]: Start isEmpty. Operand 95582 states and 194475 transitions. [2023-12-25 05:35:25,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-25 05:35:25,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:25,957 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:25,969 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 (32)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:26,158 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 [2023-12-25 05:35:26,158 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:26,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:26,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1611225970, now seen corresponding path program 1 times [2023-12-25 05:35:26,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:26,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508160681] [2023-12-25 05:35:26,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:26,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:26,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:26,160 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) [2023-12-25 05:35:26,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-25 05:35:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:26,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:26,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:26,591 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-12-25 05:35:26,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:26,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:26,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508160681] [2023-12-25 05:35:26,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508160681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:26,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:26,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:26,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272673793] [2023-12-25 05:35:26,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:26,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:26,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:26,593 INFO L87 Difference]: Start difference. First operand 95582 states and 194475 transitions. Second operand has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:35:37,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:37,894 INFO L93 Difference]: Finished difference Result 191858 states and 399881 transitions. [2023-12-25 05:35:37,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:35:37,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 4 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 192 [2023-12-25 05:35:37,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:39,118 INFO L225 Difference]: With dead ends: 191858 [2023-12-25 05:35:39,118 INFO L226 Difference]: Without dead ends: 96098 [2023-12-25 05:35:41,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:35:41,612 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 664 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:41,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 3769 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:41,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96098 states.