/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_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:33:49,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:33:49,478 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 05:33:49,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:33:49,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:33:49,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:33:49,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:33:49,509 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:33:49,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:33:49,510 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:33:49,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:33:49,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:33:49,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:33:49,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:33:49,511 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:33:49,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:33:49,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:33:49,512 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:33:49,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:33:49,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:33:49,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:33:49,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:33:49,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:33:49,516 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:33:49,519 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:33:49,519 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:33:49,519 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:33:49,520 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:33:49,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:33:49,521 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:33:49,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:33:49,521 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:33:49,522 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:33:49,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:33:49,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:33:49,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:33:49,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:33:49,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:33:49,522 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:33:49,522 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:33:49,523 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:33:49,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:33:49,523 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:33:49,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:33:49,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:33:49,523 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:33:49,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:33:49,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:33:49,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:33:49,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:33:49,687 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:33:49,688 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:33:49,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product19.cil.c [2023-12-25 05:33:50,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:33:51,042 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:33:51,042 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product19.cil.c [2023-12-25 05:33:51,063 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a56ddf3fc/e065d0c2bda641dbb75dbe7840be4b6e/FLAG28149c5b5 [2023-12-25 05:33:51,078 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a56ddf3fc/e065d0c2bda641dbb75dbe7840be4b6e [2023-12-25 05:33:51,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:33:51,080 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:33:51,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:33:51,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:33:51,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:33:51,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328e8e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51, skipping insertion in model container [2023-12-25 05:33:51,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,150 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:33:51,509 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_product19.cil.c[55726,55739] [2023-12-25 05:33:51,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:33:51,544 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:33:51,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:33:51,615 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_product19.cil.c[55726,55739] [2023-12-25 05:33:51,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:33:51,648 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:33:51,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-25 05:33:51,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [408] [2023-12-25 05:33:51,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [423] [2023-12-25 05:33:51,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [789] [2023-12-25 05:33:51,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2329] [2023-12-25 05:33:51,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2447] [2023-12-25 05:33:51,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [2482] [2023-12-25 05:33:51,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2669] [2023-12-25 05:33:51,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2678] [2023-12-25 05:33:51,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2769] [2023-12-25 05:33:51,734 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_product19.cil.c[55726,55739] [2023-12-25 05:33:51,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:33:51,771 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:33:51,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51 WrapperNode [2023-12-25 05:33:51,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:33:51,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:33:51,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:33:51,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:33:51,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,868 INFO L138 Inliner]: procedures = 94, calls = 346, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1024 [2023-12-25 05:33:51,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:33:51,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:33:51,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:33:51,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:33:51,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,906 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:33:51,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:51,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:33:51,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:33:51,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:33:51,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:33:51,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (1/1) ... [2023-12-25 05:33:52,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:33:52,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:33:52,041 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 05:33:52,078 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 05:33:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:33:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:33:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:33:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:33:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:33:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-12-25 05:33:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-12-25 05:33:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:33:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:33:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:33:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:33:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:33:52,100 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:33:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:33:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:33:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:33:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:33:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:33:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:33:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:33:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:33:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:33:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:33:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:33:52,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:33:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:33:52,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:33:52,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:33:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:33:52,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:33:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-25 05:33:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-25 05:33:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:33:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:33:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-25 05:33:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-25 05:33:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:33:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:33:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:33:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:33:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:33:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:33:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:33:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:33:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:33:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:33:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:33:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:33:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:33:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:33:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:33:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:33:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:33:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:33:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:33:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:33:52,304 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:33:52,308 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:33:53,085 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:33:53,185 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:33:53,185 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:33:53,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:33:53 BoogieIcfgContainer [2023-12-25 05:33:53,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:33:53,188 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:33:53,188 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:33:53,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:33:53,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:33:51" (1/3) ... [2023-12-25 05:33:53,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20636145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:33:53, skipping insertion in model container [2023-12-25 05:33:53,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:33:51" (2/3) ... [2023-12-25 05:33:53,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20636145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:33:53, skipping insertion in model container [2023-12-25 05:33:53,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:33:53" (3/3) ... [2023-12-25 05:33:53,192 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product19.cil.c [2023-12-25 05:33:53,205 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:33:53,205 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:33:53,240 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:33:53,244 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;@1eb123c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:33:53,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:33:53,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 567 states, 430 states have (on average 1.7023255813953488) internal successors, (732), 448 states have internal predecessors, (732), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-25 05:33:53,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:33:53,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:53,266 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:53,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:53,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:53,270 INFO L85 PathProgramCache]: Analyzing trace with hash 529877195, now seen corresponding path program 1 times [2023-12-25 05:33:53,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:53,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907008308] [2023-12-25 05:33:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:53,280 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 05:33:53,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:53,282 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 05:33:53,308 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 05:33:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:53,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:53,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:53,785 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:33:53,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:53,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:53,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907008308] [2023-12-25 05:33:53,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907008308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:53,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:53,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:53,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726038706] [2023-12-25 05:33:53,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:53,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:53,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:53,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:53,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:53,813 INFO L87 Difference]: Start difference. First operand has 567 states, 430 states have (on average 1.7023255813953488) internal successors, (732), 448 states have internal predecessors, (732), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:54,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:54,035 INFO L93 Difference]: Finished difference Result 1137 states and 1914 transitions. [2023-12-25 05:33:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:54,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 101 [2023-12-25 05:33:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:54,048 INFO L225 Difference]: With dead ends: 1137 [2023-12-25 05:33:54,048 INFO L226 Difference]: Without dead ends: 575 [2023-12-25 05:33:54,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 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 05:33:54,056 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 115 mSDsluCounter, 4471 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5384 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:54,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5384 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:54,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-25 05:33:54,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 573. [2023-12-25 05:33:54,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 436 states have (on average 1.688073394495413) internal successors, (736), 454 states have internal predecessors, (736), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 104 states have call predecessors, (108), 106 states have call successors, (108) [2023-12-25 05:33:54,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 953 transitions. [2023-12-25 05:33:54,154 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 953 transitions. Word has length 101 [2023-12-25 05:33:54,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:54,155 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 953 transitions. [2023-12-25 05:33:54,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:54,155 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 953 transitions. [2023-12-25 05:33:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:33:54,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:54,161 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:54,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:54,373 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 05:33:54,374 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:54,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:54,388 INFO L85 PathProgramCache]: Analyzing trace with hash 737264536, now seen corresponding path program 1 times [2023-12-25 05:33:54,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:54,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365859602] [2023-12-25 05:33:54,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:54,392 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 05:33:54,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:54,395 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 05:33:54,432 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 05:33:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:54,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:54,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:54,772 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:33:54,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:54,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:54,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365859602] [2023-12-25 05:33:54,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365859602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:54,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:54,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:54,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282472916] [2023-12-25 05:33:54,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:54,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:54,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:54,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:54,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:54,775 INFO L87 Difference]: Start difference. First operand 573 states and 953 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:54,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:54,953 INFO L93 Difference]: Finished difference Result 1146 states and 1914 transitions. [2023-12-25 05:33:54,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:54,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 102 [2023-12-25 05:33:54,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:54,957 INFO L225 Difference]: With dead ends: 1146 [2023-12-25 05:33:54,957 INFO L226 Difference]: Without dead ends: 583 [2023-12-25 05:33:54,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 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 05:33:54,960 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 102 mSDsluCounter, 4471 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 5388 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:54,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 5388 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:54,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-25 05:33:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 573. [2023-12-25 05:33:54,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 436 states have (on average 1.688073394495413) internal successors, (736), 454 states have internal predecessors, (736), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 104 states have call predecessors, (108), 106 states have call successors, (108) [2023-12-25 05:33:54,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 953 transitions. [2023-12-25 05:33:54,984 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 953 transitions. Word has length 102 [2023-12-25 05:33:54,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:54,984 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 953 transitions. [2023-12-25 05:33:54,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:54,985 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 953 transitions. [2023-12-25 05:33:54,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:33:54,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:54,988 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:54,999 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 05:33:55,200 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 05:33:55,201 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:55,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:55,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1684876880, now seen corresponding path program 1 times [2023-12-25 05:33:55,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:55,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445370591] [2023-12-25 05:33:55,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:55,202 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 05:33:55,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:55,204 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 05:33:55,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:33:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:55,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:33:55,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:33:55,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:55,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:55,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445370591] [2023-12-25 05:33:55,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445370591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:55,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:33:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581375305] [2023-12-25 05:33:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:55,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:33:55,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:55,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:33:55,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:33:55,524 INFO L87 Difference]: Start difference. First operand 573 states and 953 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:33:55,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:55,609 INFO L93 Difference]: Finished difference Result 1134 states and 1893 transitions. [2023-12-25 05:33:55,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:33:55,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2023-12-25 05:33:55,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:55,613 INFO L225 Difference]: With dead ends: 1134 [2023-12-25 05:33:55,613 INFO L226 Difference]: Without dead ends: 544 [2023-12-25 05:33:55,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 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 05:33:55,616 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 22 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:55,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2717 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:55,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-12-25 05:33:55,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2023-12-25 05:33:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 410 states have (on average 1.670731707317073) internal successors, (685), 426 states have internal predecessors, (685), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 05:33:55,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 898 transitions. [2023-12-25 05:33:55,635 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 898 transitions. Word has length 102 [2023-12-25 05:33:55,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:55,635 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 898 transitions. [2023-12-25 05:33:55,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-25 05:33:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 898 transitions. [2023-12-25 05:33:55,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:33:55,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:55,638 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:55,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:55,847 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 05:33:55,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:55,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:55,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1010088591, now seen corresponding path program 1 times [2023-12-25 05:33:55,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:55,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150835999] [2023-12-25 05:33:55,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:55,849 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 05:33:55,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:55,854 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 05:33:55,855 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 05:33:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:56,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:56,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:33:56,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:56,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:56,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150835999] [2023-12-25 05:33:56,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150835999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:56,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:56,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:56,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130221993] [2023-12-25 05:33:56,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:56,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:56,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:56,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:56,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:56,391 INFO L87 Difference]: Start difference. First operand 544 states and 898 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:56,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:56,526 INFO L93 Difference]: Finished difference Result 1086 states and 1800 transitions. [2023-12-25 05:33:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:56,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 103 [2023-12-25 05:33:56,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:56,529 INFO L225 Difference]: With dead ends: 1086 [2023-12-25 05:33:56,529 INFO L226 Difference]: Without dead ends: 538 [2023-12-25 05:33:56,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 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 05:33:56,532 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 87 mSDsluCounter, 4293 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:56,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 5165 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:56,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-12-25 05:33:56,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2023-12-25 05:33:56,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 404 states have (on average 1.6633663366336633) internal successors, (672), 420 states have internal predecessors, (672), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 05:33:56,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 885 transitions. [2023-12-25 05:33:56,547 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 885 transitions. Word has length 103 [2023-12-25 05:33:56,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:56,547 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 885 transitions. [2023-12-25 05:33:56,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:56,548 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 885 transitions. [2023-12-25 05:33:56,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:33:56,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:56,549 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:56,576 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 05:33:56,777 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 05:33:56,778 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:56,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:56,778 INFO L85 PathProgramCache]: Analyzing trace with hash -983516516, now seen corresponding path program 1 times [2023-12-25 05:33:56,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:56,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993049365] [2023-12-25 05:33:56,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:56,779 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 05:33:56,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:56,780 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 05:33:56,797 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 05:33:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:57,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:57,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:57,170 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:33:57,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:57,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:57,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993049365] [2023-12-25 05:33:57,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993049365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:57,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:57,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:57,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996279774] [2023-12-25 05:33:57,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:57,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:57,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:57,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:57,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:57,179 INFO L87 Difference]: Start difference. First operand 538 states and 885 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:57,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:57,313 INFO L93 Difference]: Finished difference Result 1074 states and 1774 transitions. [2023-12-25 05:33:57,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:57,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 104 [2023-12-25 05:33:57,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:57,316 INFO L225 Difference]: With dead ends: 1074 [2023-12-25 05:33:57,316 INFO L226 Difference]: Without dead ends: 532 [2023-12-25 05:33:57,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 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 05:33:57,318 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 73 mSDsluCounter, 4245 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 5105 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:57,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 5105 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:57,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-25 05:33:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2023-12-25 05:33:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 398 states have (on average 1.6557788944723617) internal successors, (659), 414 states have internal predecessors, (659), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 05:33:57,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 872 transitions. [2023-12-25 05:33:57,331 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 872 transitions. Word has length 104 [2023-12-25 05:33:57,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:57,331 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 872 transitions. [2023-12-25 05:33:57,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 872 transitions. [2023-12-25 05:33:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:33:57,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:57,333 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:57,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 05:33:57,542 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 05:33:57,543 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:57,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:57,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1450732323, now seen corresponding path program 1 times [2023-12-25 05:33:57,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:57,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078305162] [2023-12-25 05:33:57,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:57,544 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 05:33:57,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:57,545 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 05:33:57,577 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 (7)] Waiting until timeout for monitored process [2023-12-25 05:33:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:57,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:33:57,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:33:57,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:57,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:57,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078305162] [2023-12-25 05:33:57,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078305162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:57,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:57,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:33:57,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235899769] [2023-12-25 05:33:57,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:57,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:33:57,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:57,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:33:57,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:33:57,922 INFO L87 Difference]: Start difference. First operand 532 states and 872 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:58,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:58,048 INFO L93 Difference]: Finished difference Result 1062 states and 1748 transitions. [2023-12-25 05:33:58,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:33:58,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 104 [2023-12-25 05:33:58,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:58,051 INFO L225 Difference]: With dead ends: 1062 [2023-12-25 05:33:58,051 INFO L226 Difference]: Without dead ends: 532 [2023-12-25 05:33:58,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 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 05:33:58,054 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 48 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 5057 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:58,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 5057 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-25 05:33:58,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2023-12-25 05:33:58,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 398 states have (on average 1.6532663316582914) internal successors, (658), 414 states have internal predecessors, (658), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 05:33:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 871 transitions. [2023-12-25 05:33:58,070 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 871 transitions. Word has length 104 [2023-12-25 05:33:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:58,070 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 871 transitions. [2023-12-25 05:33:58,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 871 transitions. [2023-12-25 05:33:58,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:33:58,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:58,072 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:58,081 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 05:33:58,281 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 05:33:58,282 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:58,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:58,282 INFO L85 PathProgramCache]: Analyzing trace with hash -221981613, now seen corresponding path program 1 times [2023-12-25 05:33:58,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:58,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554699114] [2023-12-25 05:33:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:58,283 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 05:33:58,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:58,284 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 05:33:58,285 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 05:33:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:58,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:58,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:58,681 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:33:58,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:58,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:58,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554699114] [2023-12-25 05:33:58,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554699114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:58,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:58,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:58,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327945869] [2023-12-25 05:33:58,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:58,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:58,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:58,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:58,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:58,683 INFO L87 Difference]: Start difference. First operand 532 states and 871 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:58,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:58,872 INFO L93 Difference]: Finished difference Result 1056 states and 1735 transitions. [2023-12-25 05:33:58,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:58,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 105 [2023-12-25 05:33:58,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:58,875 INFO L225 Difference]: With dead ends: 1056 [2023-12-25 05:33:58,875 INFO L226 Difference]: Without dead ends: 532 [2023-12-25 05:33:58,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 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 05:33:58,878 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 35 mSDsluCounter, 5005 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5843 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:58,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5843 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-25 05:33:58,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2023-12-25 05:33:58,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 398 states have (on average 1.650753768844221) internal successors, (657), 414 states have internal predecessors, (657), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 05:33:58,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 870 transitions. [2023-12-25 05:33:58,892 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 870 transitions. Word has length 105 [2023-12-25 05:33:58,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:58,893 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 870 transitions. [2023-12-25 05:33:58,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:58,893 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 870 transitions. [2023-12-25 05:33:58,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:33:58,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:58,895 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:58,924 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 (8)] Ended with exit code 0 [2023-12-25 05:33:59,103 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 05:33:59,104 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:59,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:59,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1590057564, now seen corresponding path program 1 times [2023-12-25 05:33:59,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:59,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755436308] [2023-12-25 05:33:59,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:59,105 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 05:33:59,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:59,106 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 05:33:59,109 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 05:33:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:59,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:33:59,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:33:59,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:59,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:59,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755436308] [2023-12-25 05:33:59,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755436308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:59,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:59,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:33:59,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147970553] [2023-12-25 05:33:59,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:59,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:33:59,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:59,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:33:59,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:33:59,469 INFO L87 Difference]: Start difference. First operand 532 states and 870 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:59,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:59,674 INFO L93 Difference]: Finished difference Result 1056 states and 1733 transitions. [2023-12-25 05:33:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:33:59,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 106 [2023-12-25 05:33:59,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:59,690 INFO L225 Difference]: With dead ends: 1056 [2023-12-25 05:33:59,690 INFO L226 Difference]: Without dead ends: 532 [2023-12-25 05:33:59,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 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 05:33:59,693 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 32 mSDsluCounter, 5005 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5843 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:59,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 5843 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:33:59,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-25 05:33:59,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2023-12-25 05:33:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 398 states have (on average 1.6482412060301508) internal successors, (656), 414 states have internal predecessors, (656), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 05:33:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 869 transitions. [2023-12-25 05:33:59,706 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 869 transitions. Word has length 106 [2023-12-25 05:33:59,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:59,706 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 869 transitions. [2023-12-25 05:33:59,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:33:59,707 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 869 transitions. [2023-12-25 05:33:59,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:33:59,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:59,708 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:33:59,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:33:59,916 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 05:33:59,917 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:59,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:59,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1765670728, now seen corresponding path program 1 times [2023-12-25 05:33:59,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:59,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346482522] [2023-12-25 05:33:59,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:59,918 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 05:33:59,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:59,921 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 05:33:59,922 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 05:34:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:00,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:00,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:00,237 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:34:00,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:00,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:00,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346482522] [2023-12-25 05:34:00,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346482522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:00,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:00,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:00,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861263675] [2023-12-25 05:34:00,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:00,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:00,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:00,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:00,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:00,239 INFO L87 Difference]: Start difference. First operand 532 states and 869 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:34:00,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:00,409 INFO L93 Difference]: Finished difference Result 1056 states and 1731 transitions. [2023-12-25 05:34:00,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:34:00,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 107 [2023-12-25 05:34:00,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:00,412 INFO L225 Difference]: With dead ends: 1056 [2023-12-25 05:34:00,412 INFO L226 Difference]: Without dead ends: 532 [2023-12-25 05:34:00,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 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 05:34:00,415 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 29 mSDsluCounter, 5005 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 5843 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:00,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 5843 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:00,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-25 05:34:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2023-12-25 05:34:00,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 398 states have (on average 1.6457286432160805) internal successors, (655), 414 states have internal predecessors, (655), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 05:34:00,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 868 transitions. [2023-12-25 05:34:00,427 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 868 transitions. Word has length 107 [2023-12-25 05:34:00,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:00,427 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 868 transitions. [2023-12-25 05:34:00,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:34:00,427 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 868 transitions. [2023-12-25 05:34:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 05:34:00,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:00,429 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:00,452 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 05:34:00,638 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 05:34:00,639 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:00,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:00,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2113433311, now seen corresponding path program 1 times [2023-12-25 05:34:00,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:00,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737237313] [2023-12-25 05:34:00,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:00,640 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 05:34:00,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:00,641 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 05:34:00,678 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 05:34:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:00,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:00,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:00,973 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:34:00,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:00,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:00,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737237313] [2023-12-25 05:34:00,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737237313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:00,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:00,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:00,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853173002] [2023-12-25 05:34:00,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:00,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:00,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:00,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:00,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:00,974 INFO L87 Difference]: Start difference. First operand 532 states and 868 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:34:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:01,131 INFO L93 Difference]: Finished difference Result 1056 states and 1729 transitions. [2023-12-25 05:34:01,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:34:01,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 108 [2023-12-25 05:34:01,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:01,134 INFO L225 Difference]: With dead ends: 1056 [2023-12-25 05:34:01,134 INFO L226 Difference]: Without dead ends: 532 [2023-12-25 05:34:01,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 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 05:34:01,137 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 26 mSDsluCounter, 5005 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5843 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:01,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5843 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:01,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-25 05:34:01,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2023-12-25 05:34:01,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 398 states have (on average 1.64321608040201) internal successors, (654), 414 states have internal predecessors, (654), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 05:34:01,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 867 transitions. [2023-12-25 05:34:01,150 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 867 transitions. Word has length 108 [2023-12-25 05:34:01,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:01,150 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 867 transitions. [2023-12-25 05:34:01,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:34:01,150 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 867 transitions. [2023-12-25 05:34:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:34:01,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:01,152 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:01,174 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 05:34:01,362 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 05:34:01,363 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:01,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:01,363 INFO L85 PathProgramCache]: Analyzing trace with hash 591427869, now seen corresponding path program 1 times [2023-12-25 05:34:01,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:01,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256075524] [2023-12-25 05:34:01,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:01,363 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 05:34:01,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:01,366 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 05:34:01,367 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 05:34:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:01,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:01,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:34:01,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:01,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:01,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256075524] [2023-12-25 05:34:01,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256075524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:01,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:01,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:01,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638726939] [2023-12-25 05:34:01,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:01,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:01,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:01,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:01,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:01,807 INFO L87 Difference]: Start difference. First operand 532 states and 867 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-25 05:34:02,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:02,452 INFO L93 Difference]: Finished difference Result 1516 states and 2491 transitions. [2023-12-25 05:34:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:02,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 109 [2023-12-25 05:34:02,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:02,458 INFO L225 Difference]: With dead ends: 1516 [2023-12-25 05:34:02,458 INFO L226 Difference]: Without dead ends: 996 [2023-12-25 05:34:02,461 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 05:34:02,462 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 708 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:02,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 3868 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:34:02,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2023-12-25 05:34:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 989. [2023-12-25 05:34:02,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 743 states have (on average 1.6029609690444144) internal successors, (1191), 773 states have internal predecessors, (1191), 198 states have call successors, (198), 51 states have call predecessors, (198), 47 states have return successors, (199), 189 states have call predecessors, (199), 194 states have call successors, (199) [2023-12-25 05:34:02,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1588 transitions. [2023-12-25 05:34:02,487 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1588 transitions. Word has length 109 [2023-12-25 05:34:02,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:02,488 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1588 transitions. [2023-12-25 05:34:02,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-25 05:34:02,488 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1588 transitions. [2023-12-25 05:34:02,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:34:02,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:02,489 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:02,514 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 05:34:02,699 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 05:34:02,699 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:02,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:02,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1449361695, now seen corresponding path program 1 times [2023-12-25 05:34:02,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:02,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897099756] [2023-12-25 05:34:02,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:02,700 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 05:34:02,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:02,717 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 05:34:02,756 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 05:34:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:03,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:34:03,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:34:03,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:03,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:03,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897099756] [2023-12-25 05:34:03,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897099756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:03,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:03,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:03,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462275848] [2023-12-25 05:34:03,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:03,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:03,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:03,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:03,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:03,125 INFO L87 Difference]: Start difference. First operand 989 states and 1588 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 05:34:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:03,654 INFO L93 Difference]: Finished difference Result 2458 states and 4015 transitions. [2023-12-25 05:34:03,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:03,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 109 [2023-12-25 05:34:03,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:03,662 INFO L225 Difference]: With dead ends: 2458 [2023-12-25 05:34:03,662 INFO L226 Difference]: Without dead ends: 1481 [2023-12-25 05:34:03,667 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 05:34:03,668 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 797 mSDsluCounter, 3369 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 4346 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:03,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 4346 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:34:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2023-12-25 05:34:03,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1472. [2023-12-25 05:34:03,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1109 states have (on average 1.6203787195671777) internal successors, (1797), 1152 states have internal predecessors, (1797), 291 states have call successors, (291), 75 states have call predecessors, (291), 71 states have return successors, (310), 282 states have call predecessors, (310), 286 states have call successors, (310) [2023-12-25 05:34:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2398 transitions. [2023-12-25 05:34:03,758 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2398 transitions. Word has length 109 [2023-12-25 05:34:03,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:03,758 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2398 transitions. [2023-12-25 05:34:03,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 05:34:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2398 transitions. [2023-12-25 05:34:03,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:34:03,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:03,760 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:03,782 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 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:03,968 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 05:34:03,969 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:03,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:03,969 INFO L85 PathProgramCache]: Analyzing trace with hash 967774689, now seen corresponding path program 1 times [2023-12-25 05:34:03,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:03,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277522210] [2023-12-25 05:34:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:03,970 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 05:34:03,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:03,985 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 05:34:03,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:34:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:04,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:34:04,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:34:04,351 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:04,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:04,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277522210] [2023-12-25 05:34:04,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277522210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:04,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:04,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:04,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365464489] [2023-12-25 05:34:04,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:04,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:04,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:04,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:04,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:04,354 INFO L87 Difference]: Start difference. First operand 1472 states and 2398 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:34:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:04,912 INFO L93 Difference]: Finished difference Result 4424 states and 7350 transitions. [2023-12-25 05:34:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:34:04,914 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 112 [2023-12-25 05:34:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:04,930 INFO L225 Difference]: With dead ends: 4424 [2023-12-25 05:34:04,930 INFO L226 Difference]: Without dead ends: 2964 [2023-12-25 05:34:04,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 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 05:34:04,940 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 877 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 4320 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:04,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 4320 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:34:04,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2023-12-25 05:34:05,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2890. [2023-12-25 05:34:05,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2184 states have (on average 1.6153846153846154) internal successors, (3528), 2268 states have internal predecessors, (3528), 562 states have call successors, (562), 147 states have call predecessors, (562), 143 states have return successors, (681), 550 states have call predecessors, (681), 554 states have call successors, (681) [2023-12-25 05:34:05,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 4771 transitions. [2023-12-25 05:34:05,116 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 4771 transitions. Word has length 112 [2023-12-25 05:34:05,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:05,117 INFO L495 AbstractCegarLoop]: Abstraction has 2890 states and 4771 transitions. [2023-12-25 05:34:05,117 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:34:05,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 4771 transitions. [2023-12-25 05:34:05,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:34:05,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:05,119 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:05,138 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 05:34:05,328 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 05:34:05,328 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:05,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:05,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1344970989, now seen corresponding path program 1 times [2023-12-25 05:34:05,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:05,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317618587] [2023-12-25 05:34:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:05,329 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 05:34:05,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:05,330 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 05:34:05,395 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 05:34:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:05,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:34:05,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:34:05,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:05,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:05,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317618587] [2023-12-25 05:34:05,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317618587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:05,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:05,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:05,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570353368] [2023-12-25 05:34:05,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:05,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:34:05,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:05,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:34:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:34:05,671 INFO L87 Difference]: Start difference. First operand 2890 states and 4771 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:34:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:05,860 INFO L93 Difference]: Finished difference Result 5786 states and 9676 transitions. [2023-12-25 05:34:05,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:34:05,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 113 [2023-12-25 05:34:05,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:05,875 INFO L225 Difference]: With dead ends: 5786 [2023-12-25 05:34:05,875 INFO L226 Difference]: Without dead ends: 2908 [2023-12-25 05:34:05,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 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 05:34:05,894 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 19 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:05,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2469 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:05,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2023-12-25 05:34:05,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2902. [2023-12-25 05:34:05,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2193 states have (on average 1.6114911080711354) internal successors, (3534), 2277 states have internal predecessors, (3534), 562 states have call successors, (562), 153 states have call predecessors, (562), 146 states have return successors, (665), 547 states have call predecessors, (665), 554 states have call successors, (665) [2023-12-25 05:34:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 4761 transitions. [2023-12-25 05:34:06,004 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 4761 transitions. Word has length 113 [2023-12-25 05:34:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:06,005 INFO L495 AbstractCegarLoop]: Abstraction has 2902 states and 4761 transitions. [2023-12-25 05:34:06,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:34:06,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 4761 transitions. [2023-12-25 05:34:06,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:34:06,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:06,006 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:06,030 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 05:34:06,216 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 05:34:06,216 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:06,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash -351722155, now seen corresponding path program 1 times [2023-12-25 05:34:06,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:06,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623442161] [2023-12-25 05:34:06,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:06,217 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 05:34:06,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:06,218 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 05:34:06,220 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 05:34:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:06,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:34:06,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-25 05:34:06,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:06,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:06,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623442161] [2023-12-25 05:34:06,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623442161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:06,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:06,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:06,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571282405] [2023-12-25 05:34:06,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:06,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:06,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:06,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:06,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:06,622 INFO L87 Difference]: Start difference. First operand 2902 states and 4761 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:34:07,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:07,302 INFO L93 Difference]: Finished difference Result 8776 states and 14778 transitions. [2023-12-25 05:34:07,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:34:07,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 121 [2023-12-25 05:34:07,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:07,337 INFO L225 Difference]: With dead ends: 8776 [2023-12-25 05:34:07,337 INFO L226 Difference]: Without dead ends: 5886 [2023-12-25 05:34:07,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 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 05:34:07,362 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 856 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:07,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 4300 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:34:07,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5886 states. [2023-12-25 05:34:07,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5886 to 5774. [2023-12-25 05:34:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5774 states, 4370 states have (on average 1.6066361556064073) internal successors, (7021), 4536 states have internal predecessors, (7021), 1107 states have call successors, (1107), 303 states have call predecessors, (1107), 296 states have return successors, (1522), 1086 states have call predecessors, (1522), 1093 states have call successors, (1522) [2023-12-25 05:34:07,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 9650 transitions. [2023-12-25 05:34:07,612 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 9650 transitions. Word has length 121 [2023-12-25 05:34:07,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:07,613 INFO L495 AbstractCegarLoop]: Abstraction has 5774 states and 9650 transitions. [2023-12-25 05:34:07,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-25 05:34:07,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 9650 transitions. [2023-12-25 05:34:07,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:34:07,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:07,616 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:07,637 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 05:34:07,823 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 05:34:07,824 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:07,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:07,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1922429655, now seen corresponding path program 1 times [2023-12-25 05:34:07,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:07,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198609503] [2023-12-25 05:34:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:07,825 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 05:34:07,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:07,854 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 05:34:07,876 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 05:34:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:08,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:34:08,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-25 05:34:08,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:08,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:08,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198609503] [2023-12-25 05:34:08,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198609503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:08,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:08,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:08,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713369022] [2023-12-25 05:34:08,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:08,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:34:08,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:08,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:34:08,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:34:08,179 INFO L87 Difference]: Start difference. First operand 5774 states and 9650 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:34:08,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:08,519 INFO L93 Difference]: Finished difference Result 11608 states and 19729 transitions. [2023-12-25 05:34:08,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:34:08,520 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 122 [2023-12-25 05:34:08,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:08,561 INFO L225 Difference]: With dead ends: 11608 [2023-12-25 05:34:08,561 INFO L226 Difference]: Without dead ends: 5846 [2023-12-25 05:34:08,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 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 05:34:08,595 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 21 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:08,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2467 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:08,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5846 states. [2023-12-25 05:34:08,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5846 to 5834. [2023-12-25 05:34:08,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5834 states, 4424 states have (on average 1.6005877034358047) internal successors, (7081), 4578 states have internal predecessors, (7081), 1107 states have call successors, (1107), 327 states have call predecessors, (1107), 302 states have return successors, (1498), 1080 states have call predecessors, (1498), 1093 states have call successors, (1498) [2023-12-25 05:34:08,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 9686 transitions. [2023-12-25 05:34:08,888 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 9686 transitions. Word has length 122 [2023-12-25 05:34:08,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:08,888 INFO L495 AbstractCegarLoop]: Abstraction has 5834 states and 9686 transitions. [2023-12-25 05:34:08,889 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:34:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 9686 transitions. [2023-12-25 05:34:08,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:34:08,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:08,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:08,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:09,098 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 05:34:09,099 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:09,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1338431723, now seen corresponding path program 1 times [2023-12-25 05:34:09,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:09,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496060271] [2023-12-25 05:34:09,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:09,100 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 05:34:09,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:09,101 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 05:34:09,102 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 05:34:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:09,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:34:09,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:34:09,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:09,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:09,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496060271] [2023-12-25 05:34:09,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496060271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:09,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:09,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:09,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273789169] [2023-12-25 05:34:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:09,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:09,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:09,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:09,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:09,475 INFO L87 Difference]: Start difference. First operand 5834 states and 9686 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:34:10,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:10,474 INFO L93 Difference]: Finished difference Result 17652 states and 30400 transitions. [2023-12-25 05:34:10,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:34:10,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 131 [2023-12-25 05:34:10,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:10,596 INFO L225 Difference]: With dead ends: 17652 [2023-12-25 05:34:10,596 INFO L226 Difference]: Without dead ends: 11830 [2023-12-25 05:34:10,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 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 05:34:10,632 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 831 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 4219 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:10,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 4219 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:34:10,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11830 states. [2023-12-25 05:34:11,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11830 to 11674. [2023-12-25 05:34:11,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11674 states, 8859 states have (on average 1.5958911841065584) internal successors, (14138), 9165 states have internal predecessors, (14138), 2200 states have call successors, (2200), 651 states have call predecessors, (2200), 614 states have return successors, (3561), 2161 states have call predecessors, (3561), 2174 states have call successors, (3561) [2023-12-25 05:34:11,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11674 states to 11674 states and 19899 transitions. [2023-12-25 05:34:11,184 INFO L78 Accepts]: Start accepts. Automaton has 11674 states and 19899 transitions. Word has length 131 [2023-12-25 05:34:11,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:11,184 INFO L495 AbstractCegarLoop]: Abstraction has 11674 states and 19899 transitions. [2023-12-25 05:34:11,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:34:11,184 INFO L276 IsEmpty]: Start isEmpty. Operand 11674 states and 19899 transitions. [2023-12-25 05:34:11,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:34:11,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:11,186 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:11,194 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 05:34:11,393 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 05:34:11,394 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:11,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:11,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1673633329, now seen corresponding path program 1 times [2023-12-25 05:34:11,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:11,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936050923] [2023-12-25 05:34:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:11,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:11,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:11,396 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 05:34:11,401 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 05:34:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:11,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:34:11,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:11,708 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:34:11,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:11,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:11,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936050923] [2023-12-25 05:34:11,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936050923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:11,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:11,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:11,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646748842] [2023-12-25 05:34:11,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:11,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:34:11,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:11,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:34:11,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:34:11,711 INFO L87 Difference]: Start difference. First operand 11674 states and 19899 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, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:34:12,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:12,455 INFO L93 Difference]: Finished difference Result 23480 states and 41031 transitions. [2023-12-25 05:34:12,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:34:12,456 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, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 132 [2023-12-25 05:34:12,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:12,574 INFO L225 Difference]: With dead ends: 23480 [2023-12-25 05:34:12,574 INFO L226 Difference]: Without dead ends: 11818 [2023-12-25 05:34:12,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 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 05:34:12,661 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 21 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:12,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2467 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:12,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11818 states. [2023-12-25 05:34:13,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11818 to 11794. [2023-12-25 05:34:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11794 states, 8967 states have (on average 1.5900524144083863) internal successors, (14258), 9273 states have internal predecessors, (14258), 2200 states have call successors, (2200), 675 states have call predecessors, (2200), 626 states have return successors, (3529), 2149 states have call predecessors, (3529), 2174 states have call successors, (3529) [2023-12-25 05:34:13,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11794 states to 11794 states and 19987 transitions. [2023-12-25 05:34:13,164 INFO L78 Accepts]: Start accepts. Automaton has 11794 states and 19987 transitions. Word has length 132 [2023-12-25 05:34:13,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:13,165 INFO L495 AbstractCegarLoop]: Abstraction has 11794 states and 19987 transitions. [2023-12-25 05:34:13,165 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, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-25 05:34:13,165 INFO L276 IsEmpty]: Start isEmpty. Operand 11794 states and 19987 transitions. [2023-12-25 05:34:13,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:34:13,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:13,166 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:13,173 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 05:34:13,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:13,374 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:13,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:13,374 INFO L85 PathProgramCache]: Analyzing trace with hash 543594945, now seen corresponding path program 1 times [2023-12-25 05:34:13,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:13,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114731806] [2023-12-25 05:34:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:13,375 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 05:34:13,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:13,393 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 05:34:13,411 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 05:34:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:13,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:34:13,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:13,941 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:34:13,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:13,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:13,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114731806] [2023-12-25 05:34:13,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114731806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:13,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:13,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:13,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340041581] [2023-12-25 05:34:13,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:13,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:13,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:13,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:13,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:13,944 INFO L87 Difference]: Start difference. First operand 11794 states and 19987 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:34:15,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:15,452 INFO L93 Difference]: Finished difference Result 35616 states and 63660 transitions. [2023-12-25 05:34:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:34:15,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-25 05:34:15,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:15,562 INFO L225 Difference]: With dead ends: 35616 [2023-12-25 05:34:15,562 INFO L226 Difference]: Without dead ends: 23834 [2023-12-25 05:34:15,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 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 05:34:15,657 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 808 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 4307 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:15,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 4307 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:34:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23834 states. [2023-12-25 05:34:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23834 to 23654. [2023-12-25 05:34:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23654 states, 17990 states have (on average 1.585491939966648) internal successors, (28523), 18600 states have internal predecessors, (28523), 4389 states have call successors, (4389), 1347 states have call predecessors, (4389), 1274 states have return successors, (8736), 4314 states have call predecessors, (8736), 4339 states have call successors, (8736) [2023-12-25 05:34:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23654 states to 23654 states and 41648 transitions. [2023-12-25 05:34:16,964 INFO L78 Accepts]: Start accepts. Automaton has 23654 states and 41648 transitions. Word has length 142 [2023-12-25 05:34:16,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:16,964 INFO L495 AbstractCegarLoop]: Abstraction has 23654 states and 41648 transitions. [2023-12-25 05:34:16,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-25 05:34:16,964 INFO L276 IsEmpty]: Start isEmpty. Operand 23654 states and 41648 transitions. [2023-12-25 05:34:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:34:16,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:16,966 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:16,974 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 05:34:17,174 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 05:34:17,174 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:17,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:17,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2056748379, now seen corresponding path program 1 times [2023-12-25 05:34:17,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:17,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062230127] [2023-12-25 05:34:17,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:17,175 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 05:34:17,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:17,176 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 05:34:17,226 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 05:34:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:17,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:34:17,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-25 05:34:17,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:17,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:17,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062230127] [2023-12-25 05:34:17,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062230127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:17,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:17,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:17,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370440181] [2023-12-25 05:34:17,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:17,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:34:17,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:17,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:34:17,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:34:17,530 INFO L87 Difference]: Start difference. First operand 23654 states and 41648 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:34:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:19,139 INFO L93 Difference]: Finished difference Result 47600 states and 87027 transitions. [2023-12-25 05:34:19,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:34:19,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2023-12-25 05:34:19,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:19,267 INFO L225 Difference]: With dead ends: 47600 [2023-12-25 05:34:19,267 INFO L226 Difference]: Without dead ends: 23910 [2023-12-25 05:34:19,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 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 05:34:19,542 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 21 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:19,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2467 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:19,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23910 states. [2023-12-25 05:34:20,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23910 to 23862. [2023-12-25 05:34:20,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23862 states, 18174 states have (on average 1.5782436447672499) internal successors, (28683), 18800 states have internal predecessors, (28683), 4389 states have call successors, (4389), 1379 states have call predecessors, (4389), 1298 states have return successors, (8704), 4290 states have call predecessors, (8704), 4339 states have call successors, (8704) [2023-12-25 05:34:20,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23862 states to 23862 states and 41776 transitions. [2023-12-25 05:34:20,839 INFO L78 Accepts]: Start accepts. Automaton has 23862 states and 41776 transitions. Word has length 143 [2023-12-25 05:34:20,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:20,839 INFO L495 AbstractCegarLoop]: Abstraction has 23862 states and 41776 transitions. [2023-12-25 05:34:20,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-25 05:34:20,840 INFO L276 IsEmpty]: Start isEmpty. Operand 23862 states and 41776 transitions. [2023-12-25 05:34:20,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:34:20,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:20,841 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:20,864 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 05:34:21,064 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 05:34:21,064 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:21,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:21,065 INFO L85 PathProgramCache]: Analyzing trace with hash 274294707, now seen corresponding path program 1 times [2023-12-25 05:34:21,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:21,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269101062] [2023-12-25 05:34:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:21,065 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 05:34:21,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:21,067 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 05:34:21,067 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 05:34:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:21,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:34:21,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:34:21,516 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:21,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:21,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269101062] [2023-12-25 05:34:21,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269101062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:21,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:21,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:21,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529579532] [2023-12-25 05:34:21,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:21,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:21,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:21,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:21,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:21,521 INFO L87 Difference]: Start difference. First operand 23862 states and 41776 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:34:24,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:24,001 INFO L93 Difference]: Finished difference Result 47904 states and 88142 transitions. [2023-12-25 05:34:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:24,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 143 [2023-12-25 05:34:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:24,175 INFO L225 Difference]: With dead ends: 47904 [2023-12-25 05:34:24,175 INFO L226 Difference]: Without dead ends: 24054 [2023-12-25 05:34:24,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 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 05:34:24,627 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 777 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:24,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 2071 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:34:24,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24054 states. [2023-12-25 05:34:25,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24054 to 24054. [2023-12-25 05:34:25,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24054 states, 18318 states have (on average 1.57369800196528) internal successors, (28827), 18944 states have internal predecessors, (28827), 4389 states have call successors, (4389), 1427 states have call predecessors, (4389), 1346 states have return successors, (8752), 4290 states have call predecessors, (8752), 4339 states have call successors, (8752) [2023-12-25 05:34:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24054 states to 24054 states and 41968 transitions. [2023-12-25 05:34:26,017 INFO L78 Accepts]: Start accepts. Automaton has 24054 states and 41968 transitions. Word has length 143 [2023-12-25 05:34:26,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:26,018 INFO L495 AbstractCegarLoop]: Abstraction has 24054 states and 41968 transitions. [2023-12-25 05:34:26,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:34:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 24054 states and 41968 transitions. [2023-12-25 05:34:26,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:34:26,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:26,021 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:26,042 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 05:34:26,230 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 05:34:26,231 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:26,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:26,232 INFO L85 PathProgramCache]: Analyzing trace with hash -82525701, now seen corresponding path program 1 times [2023-12-25 05:34:26,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:26,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670016504] [2023-12-25 05:34:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:26,233 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 05:34:26,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:26,234 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 05:34:26,235 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 05:34:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:26,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:34:26,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:26,659 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:34:26,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:26,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:26,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670016504] [2023-12-25 05:34:26,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670016504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:26,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:26,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:26,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805068184] [2023-12-25 05:34:26,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:26,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:26,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:26,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:26,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:26,661 INFO L87 Difference]: Start difference. First operand 24054 states and 41968 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:34:28,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:28,937 INFO L93 Difference]: Finished difference Result 48336 states and 88494 transitions. [2023-12-25 05:34:28,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:28,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2023-12-25 05:34:28,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:29,062 INFO L225 Difference]: With dead ends: 48336 [2023-12-25 05:34:29,063 INFO L226 Difference]: Without dead ends: 24294 [2023-12-25 05:34:29,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 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 05:34:29,259 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 775 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:29,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 2072 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:34:29,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24294 states. [2023-12-25 05:34:30,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24294 to 24294. [2023-12-25 05:34:30,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24294 states, 18510 states have (on average 1.5677471636952998) internal successors, (29019), 19136 states have internal predecessors, (29019), 4389 states have call successors, (4389), 1475 states have call predecessors, (4389), 1394 states have return successors, (8800), 4290 states have call predecessors, (8800), 4339 states have call successors, (8800) [2023-12-25 05:34:30,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24294 states to 24294 states and 42208 transitions. [2023-12-25 05:34:30,564 INFO L78 Accepts]: Start accepts. Automaton has 24294 states and 42208 transitions. Word has length 145 [2023-12-25 05:34:30,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:30,565 INFO L495 AbstractCegarLoop]: Abstraction has 24294 states and 42208 transitions. [2023-12-25 05:34:30,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:34:30,565 INFO L276 IsEmpty]: Start isEmpty. Operand 24294 states and 42208 transitions. [2023-12-25 05:34:30,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:34:30,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:30,567 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:30,590 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 05:34:30,775 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 05:34:30,775 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:30,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:30,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1285947251, now seen corresponding path program 1 times [2023-12-25 05:34:30,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:30,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969737329] [2023-12-25 05:34:30,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:30,776 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 05:34:30,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:30,780 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 05:34:30,782 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 05:34:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:31,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:34:31,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:34:31,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:31,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:31,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969737329] [2023-12-25 05:34:31,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969737329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:31,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:31,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:31,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807642627] [2023-12-25 05:34:31,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:31,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:31,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:31,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:31,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:31,190 INFO L87 Difference]: Start difference. First operand 24294 states and 42208 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:34:33,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:33,340 INFO L93 Difference]: Finished difference Result 48864 states and 88966 transitions. [2023-12-25 05:34:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:33,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 147 [2023-12-25 05:34:33,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:33,573 INFO L225 Difference]: With dead ends: 48864 [2023-12-25 05:34:33,573 INFO L226 Difference]: Without dead ends: 24582 [2023-12-25 05:34:33,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 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 05:34:33,738 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 766 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:33,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 2072 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:34:33,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24582 states. [2023-12-25 05:34:34,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24582 to 24582. [2023-12-25 05:34:34,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24582 states, 18750 states have (on average 1.56048) internal successors, (29259), 19376 states have internal predecessors, (29259), 4389 states have call successors, (4389), 1523 states have call predecessors, (4389), 1442 states have return successors, (8848), 4290 states have call predecessors, (8848), 4339 states have call successors, (8848) [2023-12-25 05:34:35,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24582 states to 24582 states and 42496 transitions. [2023-12-25 05:34:35,093 INFO L78 Accepts]: Start accepts. Automaton has 24582 states and 42496 transitions. Word has length 147 [2023-12-25 05:34:35,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:35,093 INFO L495 AbstractCegarLoop]: Abstraction has 24582 states and 42496 transitions. [2023-12-25 05:34:35,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:34:35,093 INFO L276 IsEmpty]: Start isEmpty. Operand 24582 states and 42496 transitions. [2023-12-25 05:34:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:34:35,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:35,095 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:35,105 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 05:34:35,302 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 05:34:35,303 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:35,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:35,303 INFO L85 PathProgramCache]: Analyzing trace with hash -131294397, now seen corresponding path program 1 times [2023-12-25 05:34:35,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:35,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332821802] [2023-12-25 05:34:35,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:35,304 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 05:34:35,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:35,316 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 05:34:35,319 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 05:34:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:35,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:34:35,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:35,723 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:34:35,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:35,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:35,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332821802] [2023-12-25 05:34:35,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332821802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:35,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:35,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:35,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962583423] [2023-12-25 05:34:35,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:35,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:35,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:35,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:35,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:35,725 INFO L87 Difference]: Start difference. First operand 24582 states and 42496 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:34:37,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:37,829 INFO L93 Difference]: Finished difference Result 49488 states and 89546 transitions. [2023-12-25 05:34:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:37,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 149 [2023-12-25 05:34:37,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:38,076 INFO L225 Difference]: With dead ends: 49488 [2023-12-25 05:34:38,076 INFO L226 Difference]: Without dead ends: 24918 [2023-12-25 05:34:38,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 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 05:34:38,493 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 766 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:38,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 2072 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:34:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24918 states. [2023-12-25 05:34:39,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24918 to 24918. [2023-12-25 05:34:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24918 states, 19038 states have (on average 1.5520012606366216) internal successors, (29547), 19664 states have internal predecessors, (29547), 4389 states have call successors, (4389), 1571 states have call predecessors, (4389), 1490 states have return successors, (8896), 4290 states have call predecessors, (8896), 4339 states have call successors, (8896) [2023-12-25 05:34:39,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24918 states to 24918 states and 42832 transitions. [2023-12-25 05:34:39,697 INFO L78 Accepts]: Start accepts. Automaton has 24918 states and 42832 transitions. Word has length 149 [2023-12-25 05:34:39,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:39,697 INFO L495 AbstractCegarLoop]: Abstraction has 24918 states and 42832 transitions. [2023-12-25 05:34:39,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:34:39,698 INFO L276 IsEmpty]: Start isEmpty. Operand 24918 states and 42832 transitions. [2023-12-25 05:34:39,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:34:39,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:39,699 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:39,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-25 05:34:39,908 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 05:34:39,908 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:39,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:39,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1221876019, now seen corresponding path program 1 times [2023-12-25 05:34:39,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:39,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026914598] [2023-12-25 05:34:39,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:39,909 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 05:34:39,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:39,911 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 05:34:39,915 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 05:34:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:40,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:40,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:40,596 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-25 05:34:40,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:40,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:40,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026914598] [2023-12-25 05:34:40,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026914598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:40,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:40,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:40,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695263400] [2023-12-25 05:34:40,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:40,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:34:40,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:40,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:34:40,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:34:40,598 INFO L87 Difference]: Start difference. First operand 24918 states and 42832 transitions. Second operand has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-25 05:34:43,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:43,200 INFO L93 Difference]: Finished difference Result 49940 states and 87202 transitions. [2023-12-25 05:34:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:34:43,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 151 [2023-12-25 05:34:43,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:43,367 INFO L225 Difference]: With dead ends: 49940 [2023-12-25 05:34:43,367 INFO L226 Difference]: Without dead ends: 25034 [2023-12-25 05:34:43,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:34:43,542 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 1488 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:43,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 3210 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1221 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 05:34:43,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25034 states. [2023-12-25 05:34:44,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25034 to 24918. [2023-12-25 05:34:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24918 states, 19038 states have (on average 1.5511608362222922) internal successors, (29531), 19664 states have internal predecessors, (29531), 4389 states have call successors, (4389), 1571 states have call predecessors, (4389), 1490 states have return successors, (8896), 4290 states have call predecessors, (8896), 4339 states have call successors, (8896) [2023-12-25 05:34:44,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24918 states to 24918 states and 42816 transitions. [2023-12-25 05:34:44,755 INFO L78 Accepts]: Start accepts. Automaton has 24918 states and 42816 transitions. Word has length 151 [2023-12-25 05:34:44,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:44,755 INFO L495 AbstractCegarLoop]: Abstraction has 24918 states and 42816 transitions. [2023-12-25 05:34:44,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-25 05:34:44,755 INFO L276 IsEmpty]: Start isEmpty. Operand 24918 states and 42816 transitions. [2023-12-25 05:34:44,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-25 05:34:44,757 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:44,757 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:44,768 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 05:34:44,965 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 05:34:44,966 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:44,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:44,966 INFO L85 PathProgramCache]: Analyzing trace with hash 376346431, now seen corresponding path program 1 times [2023-12-25 05:34:44,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:44,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715307193] [2023-12-25 05:34:44,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:44,967 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 05:34:44,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:44,968 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 05:34:44,969 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 05:34:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:45,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:34:45,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:45,408 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 05:34:45,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:45,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:45,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715307193] [2023-12-25 05:34:45,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715307193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:45,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:45,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:34:45,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619825911] [2023-12-25 05:34:45,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:45,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:45,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:45,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:45,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:45,410 INFO L87 Difference]: Start difference. First operand 24918 states and 42816 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:34:47,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:47,321 INFO L93 Difference]: Finished difference Result 49892 states and 87154 transitions. [2023-12-25 05:34:47,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:47,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 163 [2023-12-25 05:34:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:47,488 INFO L225 Difference]: With dead ends: 49892 [2023-12-25 05:34:47,488 INFO L226 Difference]: Without dead ends: 24986 [2023-12-25 05:34:47,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 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 05:34:47,659 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 628 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:47,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 2604 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:34:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24986 states. [2023-12-25 05:34:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24986 to 24918. [2023-12-25 05:34:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24918 states, 19038 states have (on average 1.5511608362222922) internal successors, (29531), 19664 states have internal predecessors, (29531), 4389 states have call successors, (4389), 1571 states have call predecessors, (4389), 1490 states have return successors, (8880), 4290 states have call predecessors, (8880), 4339 states have call successors, (8880) [2023-12-25 05:34:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24918 states to 24918 states and 42800 transitions. [2023-12-25 05:34:48,873 INFO L78 Accepts]: Start accepts. Automaton has 24918 states and 42800 transitions. Word has length 163 [2023-12-25 05:34:48,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:48,873 INFO L495 AbstractCegarLoop]: Abstraction has 24918 states and 42800 transitions. [2023-12-25 05:34:48,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:34:48,873 INFO L276 IsEmpty]: Start isEmpty. Operand 24918 states and 42800 transitions. [2023-12-25 05:34:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-25 05:34:48,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:48,875 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:48,885 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 (27)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:49,083 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 05:34:49,083 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:49,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:49,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1797137252, now seen corresponding path program 1 times [2023-12-25 05:34:49,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:49,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341237492] [2023-12-25 05:34:49,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:49,084 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 05:34:49,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:49,085 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 05:34:49,117 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 05:34:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:49,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:34:49,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 05:34:49,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:49,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:49,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341237492] [2023-12-25 05:34:49,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341237492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:49,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:49,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:34:49,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287859826] [2023-12-25 05:34:49,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:49,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:49,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:49,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:49,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:49,522 INFO L87 Difference]: Start difference. First operand 24918 states and 42800 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:34:51,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:51,838 INFO L93 Difference]: Finished difference Result 49892 states and 87122 transitions. [2023-12-25 05:34:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:51,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 164 [2023-12-25 05:34:51,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:51,990 INFO L225 Difference]: With dead ends: 49892 [2023-12-25 05:34:51,990 INFO L226 Difference]: Without dead ends: 24986 [2023-12-25 05:34:52,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 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 05:34:52,140 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 625 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:52,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 2791 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:34:52,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24986 states. [2023-12-25 05:34:53,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24986 to 24918. [2023-12-25 05:34:53,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24918 states, 19038 states have (on average 1.5511608362222922) internal successors, (29531), 19664 states have internal predecessors, (29531), 4389 states have call successors, (4389), 1571 states have call predecessors, (4389), 1490 states have return successors, (8864), 4290 states have call predecessors, (8864), 4339 states have call successors, (8864) [2023-12-25 05:34:53,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24918 states to 24918 states and 42784 transitions. [2023-12-25 05:34:53,675 INFO L78 Accepts]: Start accepts. Automaton has 24918 states and 42784 transitions. Word has length 164 [2023-12-25 05:34:53,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:53,676 INFO L495 AbstractCegarLoop]: Abstraction has 24918 states and 42784 transitions. [2023-12-25 05:34:53,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:34:53,676 INFO L276 IsEmpty]: Start isEmpty. Operand 24918 states and 42784 transitions. [2023-12-25 05:34:53,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-25 05:34:53,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:53,677 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:53,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-25 05:34:53,884 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 05:34:53,884 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:53,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1673692507, now seen corresponding path program 1 times [2023-12-25 05:34:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:53,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505513004] [2023-12-25 05:34:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:53,885 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 05:34:53,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:53,886 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 05:34:53,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 05:34:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:54,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:34:54,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 05:34:54,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:54,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505513004] [2023-12-25 05:34:54,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505513004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:54,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:54,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:34:54,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259710283] [2023-12-25 05:34:54,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:54,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:34:54,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:54,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:34:54,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:34:54,321 INFO L87 Difference]: Start difference. First operand 24918 states and 42784 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:34:56,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:56,370 INFO L93 Difference]: Finished difference Result 49892 states and 87090 transitions. [2023-12-25 05:34:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:56,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 165 [2023-12-25 05:34:56,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:56,536 INFO L225 Difference]: With dead ends: 49892 [2023-12-25 05:34:56,536 INFO L226 Difference]: Without dead ends: 24986 [2023-12-25 05:34:56,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 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 05:34:56,697 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 621 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:56,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 2977 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:34:56,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24986 states. [2023-12-25 05:34:57,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24986 to 24918. [2023-12-25 05:34:57,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24918 states, 19038 states have (on average 1.5511608362222922) internal successors, (29531), 19664 states have internal predecessors, (29531), 4389 states have call successors, (4389), 1571 states have call predecessors, (4389), 1490 states have return successors, (8848), 4290 states have call predecessors, (8848), 4339 states have call successors, (8848) [2023-12-25 05:34:58,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24918 states to 24918 states and 42768 transitions. [2023-12-25 05:34:58,165 INFO L78 Accepts]: Start accepts. Automaton has 24918 states and 42768 transitions. Word has length 165 [2023-12-25 05:34:58,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:58,166 INFO L495 AbstractCegarLoop]: Abstraction has 24918 states and 42768 transitions. [2023-12-25 05:34:58,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-25 05:34:58,166 INFO L276 IsEmpty]: Start isEmpty. Operand 24918 states and 42768 transitions. [2023-12-25 05:34:58,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-25 05:34:58,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:58,167 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:58,178 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 05:34:58,375 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 05:34:58,376 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:58,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1844647968, now seen corresponding path program 1 times [2023-12-25 05:34:58,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:58,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960317642] [2023-12-25 05:34:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:58,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:58,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:58,378 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 05:34:58,378 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 05:34:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:58,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:34:58,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:58,765 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 05:34:58,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:58,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:58,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960317642] [2023-12-25 05:34:58,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960317642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:58,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:58,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:58,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090736113] [2023-12-25 05:34:58,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:58,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:58,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:58,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:58,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:58,767 INFO L87 Difference]: Start difference. First operand 24918 states and 42768 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-25 05:35:01,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:01,887 INFO L93 Difference]: Finished difference Result 75308 states and 134870 transitions. [2023-12-25 05:35:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:35:01,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) Word has length 161 [2023-12-25 05:35:01,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:02,221 INFO L225 Difference]: With dead ends: 75308 [2023-12-25 05:35:02,221 INFO L226 Difference]: Without dead ends: 50402 [2023-12-25 05:35:02,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:35:02,425 INFO L413 NwaCegarLoop]: 1073 mSDtfsCounter, 810 mSDsluCounter, 5567 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 6640 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:02,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 6640 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:02,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50402 states. [2023-12-25 05:35:04,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50402 to 50110. [2023-12-25 05:35:04,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50110 states, 38262 states have (on average 1.548481522136846) internal successors, (59248), 39512 states have internal predecessors, (59248), 8773 states have call successors, (8773), 3139 states have call predecessors, (8773), 3074 states have return successors, (20371), 8674 states have call predecessors, (20371), 8675 states have call successors, (20371) [2023-12-25 05:35:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50110 states to 50110 states and 88392 transitions. [2023-12-25 05:35:05,586 INFO L78 Accepts]: Start accepts. Automaton has 50110 states and 88392 transitions. Word has length 161 [2023-12-25 05:35:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:05,587 INFO L495 AbstractCegarLoop]: Abstraction has 50110 states and 88392 transitions. [2023-12-25 05:35:05,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-25 05:35:05,587 INFO L276 IsEmpty]: Start isEmpty. Operand 50110 states and 88392 transitions. [2023-12-25 05:35:05,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-25 05:35:05,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:05,590 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:05,598 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 05:35:05,797 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 05:35:05,798 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:05,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash -668819393, now seen corresponding path program 1 times [2023-12-25 05:35:05,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:05,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181099352] [2023-12-25 05:35:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:05,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:05,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:05,800 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 05:35:05,801 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 05:35:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:06,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:35:06,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:06,244 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 05:35:06,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:06,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:06,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181099352] [2023-12-25 05:35:06,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181099352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:06,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:06,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:06,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230696835] [2023-12-25 05:35:06,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:06,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:06,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:06,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:06,258 INFO L87 Difference]: Start difference. First operand 50110 states and 88392 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:35:11,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:11,108 INFO L93 Difference]: Finished difference Result 100014 states and 186145 transitions. [2023-12-25 05:35:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:11,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2023-12-25 05:35:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:11,582 INFO L225 Difference]: With dead ends: 100014 [2023-12-25 05:35:11,582 INFO L226 Difference]: Without dead ends: 49918 [2023-12-25 05:35:12,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:12,201 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 775 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:12,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 2071 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 05:35:12,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49918 states. [2023-12-25 05:35:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49918 to 49918. [2023-12-25 05:35:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49918 states, 38118 states have (on average 1.549294296657747) internal successors, (59056), 39464 states have internal predecessors, (59056), 8725 states have call successors, (8725), 3139 states have call predecessors, (8725), 3074 states have return successors, (20160), 8530 states have call predecessors, (20160), 8627 states have call successors, (20160) [2023-12-25 05:35:15,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49918 states to 49918 states and 87941 transitions. [2023-12-25 05:35:15,198 INFO L78 Accepts]: Start accepts. Automaton has 49918 states and 87941 transitions. Word has length 161 [2023-12-25 05:35:15,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:15,199 INFO L495 AbstractCegarLoop]: Abstraction has 49918 states and 87941 transitions. [2023-12-25 05:35:15,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 05:35:15,199 INFO L276 IsEmpty]: Start isEmpty. Operand 49918 states and 87941 transitions. [2023-12-25 05:35:15,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-25 05:35:15,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:15,201 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:15,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-25 05:35:15,409 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 05:35:15,409 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:15,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:15,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1299775394, now seen corresponding path program 1 times [2023-12-25 05:35:15,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:15,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906781036] [2023-12-25 05:35:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:15,410 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 05:35:15,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:15,411 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 05:35:15,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-25 05:35:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:15,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:35:15,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-25 05:35:15,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:15,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:15,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906781036] [2023-12-25 05:35:15,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906781036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:15,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:15,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:35:15,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924701681] [2023-12-25 05:35:15,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:15,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:35:15,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:15,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:35:15,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:15,753 INFO L87 Difference]: Start difference. First operand 49918 states and 87941 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-25 05:35:18,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:18,986 INFO L93 Difference]: Finished difference Result 98266 states and 170801 transitions. [2023-12-25 05:35:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:35:18,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 161 [2023-12-25 05:35:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:19,555 INFO L225 Difference]: With dead ends: 98266 [2023-12-25 05:35:19,555 INFO L226 Difference]: Without dead ends: 49578 [2023-12-25 05:35:19,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:35:19,874 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 22 mSDsluCounter, 5005 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5843 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:19,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5843 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:19,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49578 states.