/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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:34:45,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:34:45,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:34:45,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:34:45,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:34:45,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:34:45,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:34:45,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:34:45,982 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:34:45,982 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:34:45,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:34:45,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:34:45,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:34:45,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:34:45,984 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:34:45,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:34:45,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:34:45,985 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:34:45,985 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:34:45,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:34:45,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:34:45,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:34:45,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:34:45,987 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:34:45,987 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:34:45,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:34:45,987 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:34:45,988 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:34:45,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:34:45,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:34:45,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:34:45,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:34:45,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:34:45,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:34:45,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:34:45,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:34:45,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:34:45,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:34:45,990 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:34:45,990 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:34:45,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:34:45,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:34:45,990 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:34:45,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:34:45,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:34:45,991 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:34:45,991 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:34:46,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:34:46,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:34:46,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:34:46,284 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:34:46,285 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:34:46,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product28.cil.c [2023-12-25 05:34:47,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:34:47,951 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:34:47,951 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product28.cil.c [2023-12-25 05:34:47,972 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf1c94ed/6d7d42d7707049b7b6ce09872d738185/FLAG4f5b73714 [2023-12-25 05:34:47,984 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf1c94ed/6d7d42d7707049b7b6ce09872d738185 [2023-12-25 05:34:47,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:34:47,987 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:34:47,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:34:47,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:34:47,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:34:47,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:34:47" (1/1) ... [2023-12-25 05:34:47,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26578544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:47, skipping insertion in model container [2023-12-25 05:34:47,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:34:47" (1/1) ... [2023-12-25 05:34:48,063 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:34:48,604 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_product28.cil.c[73221,73234] [2023-12-25 05:34:48,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:34:48,630 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:34:48,652 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:34:48,720 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_product28.cil.c[73221,73234] [2023-12-25 05:34:48,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:34:48,740 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:34:48,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [48] [2023-12-25 05:34:48,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [242] [2023-12-25 05:34:48,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1847] [2023-12-25 05:34:48,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2213] [2023-12-25 05:34:48,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2231] [2023-12-25 05:34:48,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2350] [2023-12-25 05:34:48,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2703] [2023-12-25 05:34:48,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3364] [2023-12-25 05:34:48,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3455] [2023-12-25 05:34:48,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3464] [2023-12-25 05:34:48,851 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_product28.cil.c[73221,73234] [2023-12-25 05:34:48,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:34:48,883 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:34:48,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48 WrapperNode [2023-12-25 05:34:48,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:34:48,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:34:48,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:34:48,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:34:48,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:48,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:48,969 INFO L138 Inliner]: procedures = 97, calls = 354, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 1087 [2023-12-25 05:34:48,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:34:48,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:34:48,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:34:48,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:34:48,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:48,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:48,994 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:49,016 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:34:49,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:49,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:49,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:49,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:49,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:49,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:49,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:34:49,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:34:49,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:34:49,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:34:49,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (1/1) ... [2023-12-25 05:34:49,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:34:49,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:34:49,134 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 05:34:49,136 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 05:34:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:34:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-25 05:34:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-25 05:34:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:34:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:34:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:34:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:34:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:34:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:34:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:34:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:34:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:34:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:34:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:34:49,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:34:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:34:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:34:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:34:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:34:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:34:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:34:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:34:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:34:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:34:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:34:49,169 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:34:49,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:34:49,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:34:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:34:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:34:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:34:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:34:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:34:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:34:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:34:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:34:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-25 05:34:49,171 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-25 05:34:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:34:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:34:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-25 05:34:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-25 05:34:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:34:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:34:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-25 05:34:49,173 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-25 05:34:49,173 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:34:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:34:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:34:49,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:34:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:34:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:34:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:34:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:34:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:34:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:34:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:34:49,175 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:34:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:34:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:34:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:34:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:34:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:34:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:34:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-25 05:34:49,176 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-25 05:34:49,393 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:34:49,396 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:34:50,447 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:34:50,578 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:34:50,579 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:34:50,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:34:50 BoogieIcfgContainer [2023-12-25 05:34:50,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:34:50,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:34:50,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:34:50,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:34:50,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:34:47" (1/3) ... [2023-12-25 05:34:50,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6611038e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:34:50, skipping insertion in model container [2023-12-25 05:34:50,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:34:48" (2/3) ... [2023-12-25 05:34:50,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6611038e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:34:50, skipping insertion in model container [2023-12-25 05:34:50,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:34:50" (3/3) ... [2023-12-25 05:34:50,589 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product28.cil.c [2023-12-25 05:34:50,605 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:34:50,609 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:34:50,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:34:50,689 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;@257d9295, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:34:50,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:34:50,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 583 states, 443 states have (on average 1.7020316027088036) internal successors, (754), 463 states have internal predecessors, (754), 110 states have call successors, (110), 28 states have call predecessors, (110), 28 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-25 05:34:50,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:34:50,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:50,719 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:50,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:50,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:50,728 INFO L85 PathProgramCache]: Analyzing trace with hash -434223233, now seen corresponding path program 1 times [2023-12-25 05:34:50,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:50,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748800468] [2023-12-25 05:34:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:50,743 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 05:34:50,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:50,745 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 05:34:50,746 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 05:34:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:51,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:34:51,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:34:51,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:51,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:51,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748800468] [2023-12-25 05:34:51,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748800468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:51,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:51,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:34:51,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422911733] [2023-12-25 05:34:51,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:51,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:34:51,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:51,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:34:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:34:51,348 INFO L87 Difference]: Start difference. First operand has 583 states, 443 states have (on average 1.7020316027088036) internal successors, (754), 463 states have internal predecessors, (754), 110 states have call successors, (110), 28 states have call predecessors, (110), 28 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:51,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:51,751 INFO L93 Difference]: Finished difference Result 1169 states and 1966 transitions. [2023-12-25 05:34:51,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:34:51,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 56 [2023-12-25 05:34:51,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:51,770 INFO L225 Difference]: With dead ends: 1169 [2023-12-25 05:34:51,770 INFO L226 Difference]: Without dead ends: 591 [2023-12-25 05:34:51,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 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 05:34:51,781 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 115 mSDsluCounter, 4596 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5534 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:51,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5534 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:34:51,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-12-25 05:34:51,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2023-12-25 05:34:51,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 449 states have (on average 1.688195991091314) internal successors, (758), 469 states have internal predecessors, (758), 111 states have call successors, (111), 28 states have call predecessors, (111), 28 states have return successors, (110), 105 states have call predecessors, (110), 108 states have call successors, (110) [2023-12-25 05:34:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 979 transitions. [2023-12-25 05:34:51,891 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 979 transitions. Word has length 56 [2023-12-25 05:34:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:51,892 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 979 transitions. [2023-12-25 05:34:51,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 979 transitions. [2023-12-25 05:34:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:34:51,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:51,902 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:51,915 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 (2)] Ended with exit code 0 [2023-12-25 05:34:52,115 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 05:34:52,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:52,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash -322578571, now seen corresponding path program 1 times [2023-12-25 05:34:52,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:52,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427596754] [2023-12-25 05:34:52,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:52,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:52,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:52,119 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 05:34:52,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:34:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:52,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:34:52,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:52,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:34:52,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:52,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:52,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427596754] [2023-12-25 05:34:52,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427596754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:52,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:52,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:34:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196856563] [2023-12-25 05:34:52,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:52,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:34:52,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:52,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:34:52,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:34:52,515 INFO L87 Difference]: Start difference. First operand 589 states and 979 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:52,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:52,770 INFO L93 Difference]: Finished difference Result 1178 states and 1966 transitions. [2023-12-25 05:34:52,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:34:52,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2023-12-25 05:34:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:52,779 INFO L225 Difference]: With dead ends: 1178 [2023-12-25 05:34:52,779 INFO L226 Difference]: Without dead ends: 599 [2023-12-25 05:34:52,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 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 05:34:52,784 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 102 mSDsluCounter, 4596 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 5538 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:52,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 5538 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:34:52,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-12-25 05:34:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 589. [2023-12-25 05:34:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 449 states have (on average 1.688195991091314) internal successors, (758), 469 states have internal predecessors, (758), 111 states have call successors, (111), 28 states have call predecessors, (111), 28 states have return successors, (110), 105 states have call predecessors, (110), 108 states have call successors, (110) [2023-12-25 05:34:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 979 transitions. [2023-12-25 05:34:52,852 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 979 transitions. Word has length 57 [2023-12-25 05:34:52,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:52,852 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 979 transitions. [2023-12-25 05:34:52,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 979 transitions. [2023-12-25 05:34:52,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:34:52,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:52,855 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:52,864 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 (3)] Ended with exit code 0 [2023-12-25 05:34:53,064 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 05:34:53,065 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:53,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:53,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1461948787, now seen corresponding path program 1 times [2023-12-25 05:34:53,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:53,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682272153] [2023-12-25 05:34:53,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:53,067 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 05:34:53,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:53,068 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 05:34:53,090 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 05:34:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:53,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:34:53,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:34:53,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:53,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:53,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682272153] [2023-12-25 05:34:53,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682272153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:53,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:53,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:34:53,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60789060] [2023-12-25 05:34:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:53,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:34:53,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:34:53,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:34:53,417 INFO L87 Difference]: Start difference. First operand 589 states and 979 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:34:53,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:53,564 INFO L93 Difference]: Finished difference Result 1166 states and 1945 transitions. [2023-12-25 05:34:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:34:53,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-25 05:34:53,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:53,570 INFO L225 Difference]: With dead ends: 1166 [2023-12-25 05:34:53,570 INFO L226 Difference]: Without dead ends: 560 [2023-12-25 05:34:53,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 05:34:53,575 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 22 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:53,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2792 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-12-25 05:34:53,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2023-12-25 05:34:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 423 states have (on average 1.6713947990543736) internal successors, (707), 441 states have internal predecessors, (707), 110 states have call successors, (110), 28 states have call predecessors, (110), 26 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:34:53,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 924 transitions. [2023-12-25 05:34:53,599 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 924 transitions. Word has length 57 [2023-12-25 05:34:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:53,599 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 924 transitions. [2023-12-25 05:34:53,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:34:53,600 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 924 transitions. [2023-12-25 05:34:53,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:34:53,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:53,601 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:53,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:53,816 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 05:34:53,817 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:53,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:53,817 INFO L85 PathProgramCache]: Analyzing trace with hash 334771099, now seen corresponding path program 1 times [2023-12-25 05:34:53,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:53,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557707223] [2023-12-25 05:34:53,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:53,819 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 05:34:53,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:53,821 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 05:34:53,840 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 05:34:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:54,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:34:54,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:54,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:34:54,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:54,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:54,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557707223] [2023-12-25 05:34:54,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557707223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:54,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:54,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:34:54,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556762655] [2023-12-25 05:34:54,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:54,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:34:54,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:54,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:34:54,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:34:54,234 INFO L87 Difference]: Start difference. First operand 560 states and 924 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:54,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:54,420 INFO L93 Difference]: Finished difference Result 1118 states and 1852 transitions. [2023-12-25 05:34:54,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:34:54,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2023-12-25 05:34:54,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:54,425 INFO L225 Difference]: With dead ends: 1118 [2023-12-25 05:34:54,425 INFO L226 Difference]: Without dead ends: 554 [2023-12-25 05:34:54,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 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 05:34:54,430 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 87 mSDsluCounter, 4418 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 5315 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:54,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 5315 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:54,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-12-25 05:34:54,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2023-12-25 05:34:54,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 417 states have (on average 1.6642685851318946) internal successors, (694), 435 states have internal predecessors, (694), 110 states have call successors, (110), 28 states have call predecessors, (110), 26 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:34:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 911 transitions. [2023-12-25 05:34:54,453 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 911 transitions. Word has length 58 [2023-12-25 05:34:54,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:54,453 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 911 transitions. [2023-12-25 05:34:54,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:54,454 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 911 transitions. [2023-12-25 05:34:54,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:34:54,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:54,455 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:54,466 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 05:34:54,663 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 05:34:54,664 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:54,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:54,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1402726992, now seen corresponding path program 1 times [2023-12-25 05:34:54,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:54,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342831667] [2023-12-25 05:34:54,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:54,665 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 05:34:54,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:54,667 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 05:34:54,701 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 05:34:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:54,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:34:54,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:34:55,046 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:55,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:55,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342831667] [2023-12-25 05:34:55,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342831667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:55,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:55,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:34:55,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758594608] [2023-12-25 05:34:55,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:55,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:34:55,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:55,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:34:55,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:34:55,053 INFO L87 Difference]: Start difference. First operand 554 states and 911 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:55,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:55,217 INFO L93 Difference]: Finished difference Result 1106 states and 1826 transitions. [2023-12-25 05:34:55,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:34:55,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 59 [2023-12-25 05:34:55,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:55,222 INFO L225 Difference]: With dead ends: 1106 [2023-12-25 05:34:55,222 INFO L226 Difference]: Without dead ends: 548 [2023-12-25 05:34:55,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 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 05:34:55,225 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 73 mSDsluCounter, 4370 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 5255 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:55,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 5255 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:55,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-25 05:34:55,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2023-12-25 05:34:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 411 states have (on average 1.6545012165450121) internal successors, (680), 429 states have internal predecessors, (680), 110 states have call successors, (110), 28 states have call predecessors, (110), 26 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:34:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 897 transitions. [2023-12-25 05:34:55,244 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 897 transitions. Word has length 59 [2023-12-25 05:34:55,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:55,244 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 897 transitions. [2023-12-25 05:34:55,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:55,244 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 897 transitions. [2023-12-25 05:34:55,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 05:34:55,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:55,246 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:55,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:55,456 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 05:34:55,456 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:55,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:55,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1559945143, now seen corresponding path program 1 times [2023-12-25 05:34:55,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:55,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411500996] [2023-12-25 05:34:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:55,458 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 05:34:55,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:55,459 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 05:34:55,461 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 05:34:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:55,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:55,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:55,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:34:55,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:55,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:55,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411500996] [2023-12-25 05:34:55,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411500996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:55,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:55,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:55,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817402631] [2023-12-25 05:34:55,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:55,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:55,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:55,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:55,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:55,853 INFO L87 Difference]: Start difference. First operand 548 states and 897 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:56,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:56,064 INFO L93 Difference]: Finished difference Result 1088 states and 1787 transitions. [2023-12-25 05:34:56,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:34:56,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-12-25 05:34:56,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:56,068 INFO L225 Difference]: With dead ends: 1088 [2023-12-25 05:34:56,069 INFO L226 Difference]: Without dead ends: 548 [2023-12-25 05:34:56,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:34:56,072 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 35 mSDsluCounter, 5155 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:56,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6018 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:34:56,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-25 05:34:56,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2023-12-25 05:34:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 411 states have (on average 1.6520681265206814) internal successors, (679), 429 states have internal predecessors, (679), 110 states have call successors, (110), 28 states have call predecessors, (110), 26 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:34:56,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 896 transitions. [2023-12-25 05:34:56,089 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 896 transitions. Word has length 60 [2023-12-25 05:34:56,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:56,089 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 896 transitions. [2023-12-25 05:34:56,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:56,089 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 896 transitions. [2023-12-25 05:34:56,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-25 05:34:56,090 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:56,090 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:56,100 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 05:34:56,300 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 05:34:56,301 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:56,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:56,301 INFO L85 PathProgramCache]: Analyzing trace with hash 60897649, now seen corresponding path program 1 times [2023-12-25 05:34:56,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:56,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860097057] [2023-12-25 05:34:56,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:56,302 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 05:34:56,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:56,305 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 05:34:56,340 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 05:34:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:56,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:56,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:34:56,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:56,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:56,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860097057] [2023-12-25 05:34:56,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860097057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:56,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:56,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:56,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116834032] [2023-12-25 05:34:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:56,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:56,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:56,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:56,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:56,688 INFO L87 Difference]: Start difference. First operand 548 states and 896 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:56,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:56,897 INFO L93 Difference]: Finished difference Result 1088 states and 1785 transitions. [2023-12-25 05:34:56,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:34:56,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 61 [2023-12-25 05:34:56,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:56,901 INFO L225 Difference]: With dead ends: 1088 [2023-12-25 05:34:56,902 INFO L226 Difference]: Without dead ends: 548 [2023-12-25 05:34:56,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 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 05:34:56,905 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 32 mSDsluCounter, 5155 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:56,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 6018 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:56,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-25 05:34:56,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2023-12-25 05:34:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 411 states have (on average 1.6496350364963503) internal successors, (678), 429 states have internal predecessors, (678), 110 states have call successors, (110), 28 states have call predecessors, (110), 26 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:34:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 895 transitions. [2023-12-25 05:34:56,924 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 895 transitions. Word has length 61 [2023-12-25 05:34:56,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:56,924 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 895 transitions. [2023-12-25 05:34:56,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:56,924 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 895 transitions. [2023-12-25 05:34:56,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 05:34:56,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:56,925 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:56,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:34:57,139 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 05:34:57,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:57,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:57,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1667558290, now seen corresponding path program 1 times [2023-12-25 05:34:57,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:57,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871348042] [2023-12-25 05:34:57,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:57,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:34:57,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:57,142 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 05:34:57,143 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 05:34:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:57,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:57,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:57,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:34:57,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:57,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:57,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871348042] [2023-12-25 05:34:57,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871348042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:57,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:57,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:57,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751701468] [2023-12-25 05:34:57,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:57,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:57,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:57,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:57,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:57,471 INFO L87 Difference]: Start difference. First operand 548 states and 895 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:57,675 INFO L93 Difference]: Finished difference Result 1088 states and 1783 transitions. [2023-12-25 05:34:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:34:57,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2023-12-25 05:34:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:57,680 INFO L225 Difference]: With dead ends: 1088 [2023-12-25 05:34:57,680 INFO L226 Difference]: Without dead ends: 548 [2023-12-25 05:34:57,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:34:57,683 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 29 mSDsluCounter, 5155 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:57,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 6018 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:57,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-25 05:34:57,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2023-12-25 05:34:57,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 411 states have (on average 1.6472019464720196) internal successors, (677), 429 states have internal predecessors, (677), 110 states have call successors, (110), 28 states have call predecessors, (110), 26 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:34:57,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 894 transitions. [2023-12-25 05:34:57,699 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 894 transitions. Word has length 62 [2023-12-25 05:34:57,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:57,700 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 894 transitions. [2023-12-25 05:34:57,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:57,700 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 894 transitions. [2023-12-25 05:34:57,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 05:34:57,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:57,701 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:57,715 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 05:34:57,910 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 05:34:57,911 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:57,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:57,911 INFO L85 PathProgramCache]: Analyzing trace with hash 766923308, now seen corresponding path program 1 times [2023-12-25 05:34:57,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:57,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659583043] [2023-12-25 05:34:57,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:57,911 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 05:34:57,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:57,912 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 05:34:57,913 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 05:34:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:58,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:58,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:34:58,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:58,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:58,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659583043] [2023-12-25 05:34:58,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659583043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:58,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:58,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:34:58,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815594661] [2023-12-25 05:34:58,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:58,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:34:58,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:58,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:34:58,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:34:58,251 INFO L87 Difference]: Start difference. First operand 548 states and 894 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:58,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:58,454 INFO L93 Difference]: Finished difference Result 1088 states and 1781 transitions. [2023-12-25 05:34:58,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:34:58,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2023-12-25 05:34:58,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:58,458 INFO L225 Difference]: With dead ends: 1088 [2023-12-25 05:34:58,458 INFO L226 Difference]: Without dead ends: 548 [2023-12-25 05:34:58,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 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 05:34:58,461 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 26 mSDsluCounter, 5155 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:58,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6018 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:34:58,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-25 05:34:58,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2023-12-25 05:34:58,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 411 states have (on average 1.6447688564476886) internal successors, (676), 429 states have internal predecessors, (676), 110 states have call successors, (110), 28 states have call predecessors, (110), 26 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2023-12-25 05:34:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 893 transitions. [2023-12-25 05:34:58,477 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 893 transitions. Word has length 63 [2023-12-25 05:34:58,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:58,478 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 893 transitions. [2023-12-25 05:34:58,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:34:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 893 transitions. [2023-12-25 05:34:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 05:34:58,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:58,479 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:58,490 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 05:34:58,687 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 05:34:58,687 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:34:58,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:34:58,688 INFO L85 PathProgramCache]: Analyzing trace with hash -550464659, now seen corresponding path program 1 times [2023-12-25 05:34:58,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:34:58,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030486667] [2023-12-25 05:34:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:34:58,689 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 05:34:58,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:34:58,690 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 05:34:58,691 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 05:34:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:34:58,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:34:58,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:34:59,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:34:59,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:34:59,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:34:59,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030486667] [2023-12-25 05:34:59,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030486667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:34:59,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:34:59,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:34:59,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333344354] [2023-12-25 05:34:59,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:34:59,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:34:59,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:34:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:34:59,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:34:59,069 INFO L87 Difference]: Start difference. First operand 548 states and 893 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-25 05:34:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:34:59,855 INFO L93 Difference]: Finished difference Result 1564 states and 2573 transitions. [2023-12-25 05:34:59,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:34:59,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 64 [2023-12-25 05:34:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:34:59,865 INFO L225 Difference]: With dead ends: 1564 [2023-12-25 05:34:59,865 INFO L226 Difference]: Without dead ends: 1028 [2023-12-25 05:34:59,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 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 05:34:59,869 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 734 mSDsluCounter, 3051 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:34:59,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 3928 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:34:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2023-12-25 05:34:59,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1021. [2023-12-25 05:34:59,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 769 states have (on average 1.6059817945383614) internal successors, (1235), 803 states have internal predecessors, (1235), 202 states have call successors, (202), 53 states have call predecessors, (202), 49 states have return successors, (205), 191 states have call predecessors, (205), 198 states have call successors, (205) [2023-12-25 05:34:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1642 transitions. [2023-12-25 05:34:59,915 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1642 transitions. Word has length 64 [2023-12-25 05:34:59,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:34:59,916 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1642 transitions. [2023-12-25 05:34:59,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-25 05:34:59,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1642 transitions. [2023-12-25 05:34:59,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 05:34:59,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:34:59,917 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:34:59,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:00,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:00,127 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:00,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:00,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1804879763, now seen corresponding path program 1 times [2023-12-25 05:35:00,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:00,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891524043] [2023-12-25 05:35:00,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:00,129 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 05:35:00,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:00,130 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:00,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:35:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:00,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:00,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:00,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:00,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891524043] [2023-12-25 05:35:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891524043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:00,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:00,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100535477] [2023-12-25 05:35:00,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:00,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:00,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:00,551 INFO L87 Difference]: Start difference. First operand 1021 states and 1642 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:01,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:01,226 INFO L93 Difference]: Finished difference Result 2538 states and 4161 transitions. [2023-12-25 05:35:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:01,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-12-25 05:35:01,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:01,238 INFO L225 Difference]: With dead ends: 2538 [2023-12-25 05:35:01,238 INFO L226 Difference]: Without dead ends: 1529 [2023-12-25 05:35:01,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:01,245 INFO L413 NwaCegarLoop]: 1028 mSDtfsCounter, 827 mSDsluCounter, 3721 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:01,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 4749 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:01,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2023-12-25 05:35:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1520. [2023-12-25 05:35:01,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1148 states have (on average 1.622822299651568) internal successors, (1863), 1197 states have internal predecessors, (1863), 297 states have call successors, (297), 78 states have call predecessors, (297), 74 states have return successors, (324), 285 states have call predecessors, (324), 292 states have call successors, (324) [2023-12-25 05:35:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2484 transitions. [2023-12-25 05:35:01,319 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2484 transitions. Word has length 64 [2023-12-25 05:35:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:01,319 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2484 transitions. [2023-12-25 05:35:01,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:35:01,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2484 transitions. [2023-12-25 05:35:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 05:35:01,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:01,321 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:01,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:01,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:01,530 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:01,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:01,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2027407040, now seen corresponding path program 1 times [2023-12-25 05:35:01,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:01,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86008118] [2023-12-25 05:35:01,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:01,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:01,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:01,532 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:01,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:35:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:01,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:01,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:01,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:01,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:01,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86008118] [2023-12-25 05:35:01,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86008118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:01,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:01,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:01,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698178301] [2023-12-25 05:35:01,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:01,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:01,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:01,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:01,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:01,902 INFO L87 Difference]: Start difference. First operand 1520 states and 2484 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:35:02,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:02,674 INFO L93 Difference]: Finished difference Result 4568 states and 7670 transitions. [2023-12-25 05:35:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:02,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 67 [2023-12-25 05:35:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:02,699 INFO L225 Difference]: With dead ends: 4568 [2023-12-25 05:35:02,699 INFO L226 Difference]: Without dead ends: 3060 [2023-12-25 05:35:02,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:02,710 INFO L413 NwaCegarLoop]: 1004 mSDtfsCounter, 912 mSDsluCounter, 3497 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 4501 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:02,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 4501 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:02,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2023-12-25 05:35:02,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2986. [2023-12-25 05:35:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2262 states have (on average 1.6180371352785146) internal successors, (3660), 2358 states have internal predecessors, (3660), 574 states have call successors, (574), 153 states have call predecessors, (574), 149 states have return successors, (747), 556 states have call predecessors, (747), 566 states have call successors, (747) [2023-12-25 05:35:02,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 4981 transitions. [2023-12-25 05:35:02,856 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 4981 transitions. Word has length 67 [2023-12-25 05:35:02,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:02,857 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 4981 transitions. [2023-12-25 05:35:02,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:35:02,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 4981 transitions. [2023-12-25 05:35:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 05:35:02,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:02,859 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:02,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:03,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:03,069 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:03,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:03,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1049308089, now seen corresponding path program 1 times [2023-12-25 05:35:03,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:03,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017318746] [2023-12-25 05:35:03,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:03,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:03,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:03,072 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:03,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:35:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:03,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:03,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:35:03,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:03,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:03,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017318746] [2023-12-25 05:35:03,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017318746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:03,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:03,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:03,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667230686] [2023-12-25 05:35:03,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:03,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:03,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:03,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:03,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:03,356 INFO L87 Difference]: Start difference. First operand 2986 states and 4981 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:35:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:03,628 INFO L93 Difference]: Finished difference Result 5978 states and 10096 transitions. [2023-12-25 05:35:03,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:03,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-12-25 05:35:03,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:03,654 INFO L225 Difference]: With dead ends: 5978 [2023-12-25 05:35:03,654 INFO L226 Difference]: Without dead ends: 3004 [2023-12-25 05:35:03,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:03,678 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 19 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:03,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2544 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:03,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2023-12-25 05:35:03,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 2998. [2023-12-25 05:35:03,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2271 states have (on average 1.6142668428005285) internal successors, (3666), 2367 states have internal predecessors, (3666), 574 states have call successors, (574), 159 states have call predecessors, (574), 152 states have return successors, (731), 553 states have call predecessors, (731), 566 states have call successors, (731) [2023-12-25 05:35:03,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4971 transitions. [2023-12-25 05:35:03,817 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4971 transitions. Word has length 68 [2023-12-25 05:35:03,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:03,818 INFO L495 AbstractCegarLoop]: Abstraction has 2998 states and 4971 transitions. [2023-12-25 05:35:03,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:35:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4971 transitions. [2023-12-25 05:35:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 05:35:03,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:03,820 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:03,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:04,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:04,028 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:04,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:04,029 INFO L85 PathProgramCache]: Analyzing trace with hash -124443216, now seen corresponding path program 1 times [2023-12-25 05:35:04,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:04,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521486228] [2023-12-25 05:35:04,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:04,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:04,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:04,031 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:04,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:35:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:04,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:04,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:35:04,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:04,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:04,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521486228] [2023-12-25 05:35:04,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521486228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:04,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:04,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:04,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808801028] [2023-12-25 05:35:04,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:04,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:04,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:04,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:04,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:04,423 INFO L87 Difference]: Start difference. First operand 2998 states and 4971 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:35:05,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:05,334 INFO L93 Difference]: Finished difference Result 9064 states and 15574 transitions. [2023-12-25 05:35:05,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:05,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 76 [2023-12-25 05:35:05,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:05,388 INFO L225 Difference]: With dead ends: 9064 [2023-12-25 05:35:05,389 INFO L226 Difference]: Without dead ends: 6078 [2023-12-25 05:35:05,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:05,417 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 890 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 4407 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:05,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 4407 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:05,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6078 states. [2023-12-25 05:35:05,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6078 to 5966. [2023-12-25 05:35:05,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5966 states, 4526 states have (on average 1.6095890410958904) internal successors, (7285), 4716 states have internal predecessors, (7285), 1131 states have call successors, (1131), 315 states have call predecessors, (1131), 308 states have return successors, (1748), 1098 states have call predecessors, (1748), 1117 states have call successors, (1748) [2023-12-25 05:35:05,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5966 states to 5966 states and 10164 transitions. [2023-12-25 05:35:05,789 INFO L78 Accepts]: Start accepts. Automaton has 5966 states and 10164 transitions. Word has length 76 [2023-12-25 05:35:05,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:05,790 INFO L495 AbstractCegarLoop]: Abstraction has 5966 states and 10164 transitions. [2023-12-25 05:35:05,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:35:05,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5966 states and 10164 transitions. [2023-12-25 05:35:05,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 05:35:05,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:05,792 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:05,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:06,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:06,001 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:06,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:06,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1327557009, now seen corresponding path program 1 times [2023-12-25 05:35:06,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:06,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304965361] [2023-12-25 05:35:06,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:06,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:06,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:06,003 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:06,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:35:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:06,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:06,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:06,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-25 05:35:06,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:06,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:06,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304965361] [2023-12-25 05:35:06,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304965361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:06,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:06,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:06,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836220423] [2023-12-25 05:35:06,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:06,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:06,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:06,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:06,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:06,292 INFO L87 Difference]: Start difference. First operand 5966 states and 10164 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:35:06,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:06,685 INFO L93 Difference]: Finished difference Result 11992 states and 20761 transitions. [2023-12-25 05:35:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:06,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2023-12-25 05:35:06,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:06,756 INFO L225 Difference]: With dead ends: 11992 [2023-12-25 05:35:06,756 INFO L226 Difference]: Without dead ends: 6038 [2023-12-25 05:35:06,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:06,789 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 21 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:06,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2542 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2023-12-25 05:35:07,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 6026. [2023-12-25 05:35:07,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 4580 states have (on average 1.6037117903930131) internal successors, (7345), 4758 states have internal predecessors, (7345), 1131 states have call successors, (1131), 339 states have call predecessors, (1131), 314 states have return successors, (1724), 1092 states have call predecessors, (1724), 1117 states have call successors, (1724) [2023-12-25 05:35:07,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 10200 transitions. [2023-12-25 05:35:07,154 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 10200 transitions. Word has length 77 [2023-12-25 05:35:07,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:07,154 INFO L495 AbstractCegarLoop]: Abstraction has 6026 states and 10200 transitions. [2023-12-25 05:35:07,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-25 05:35:07,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 10200 transitions. [2023-12-25 05:35:07,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 05:35:07,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:07,155 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:07,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:07,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:07,365 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:07,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:07,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1877565431, now seen corresponding path program 1 times [2023-12-25 05:35:07,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:07,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110057663] [2023-12-25 05:35:07,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:07,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:07,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:07,368 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:07,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:35:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:07,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:07,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:07,775 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 05:35:07,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:07,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:07,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110057663] [2023-12-25 05:35:07,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110057663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:07,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:07,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:07,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76131542] [2023-12-25 05:35:07,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:07,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:07,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:07,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:07,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:07,777 INFO L87 Difference]: Start difference. First operand 6026 states and 10200 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:35:08,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:08,799 INFO L93 Difference]: Finished difference Result 18228 states and 32494 transitions. [2023-12-25 05:35:08,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:08,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2023-12-25 05:35:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:08,906 INFO L225 Difference]: With dead ends: 18228 [2023-12-25 05:35:08,907 INFO L226 Difference]: Without dead ends: 12214 [2023-12-25 05:35:08,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:08,960 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 862 mSDsluCounter, 3551 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:08,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 4530 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12214 states. [2023-12-25 05:35:09,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12214 to 12058. [2023-12-25 05:35:09,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12058 states, 9171 states have (on average 1.5991713008396031) internal successors, (14666), 9525 states have internal predecessors, (14666), 2248 states have call successors, (2248), 675 states have call predecessors, (2248), 638 states have return successors, (4345), 2185 states have call predecessors, (4345), 2222 states have call successors, (4345) [2023-12-25 05:35:09,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12058 states to 12058 states and 21259 transitions. [2023-12-25 05:35:09,686 INFO L78 Accepts]: Start accepts. Automaton has 12058 states and 21259 transitions. Word has length 86 [2023-12-25 05:35:09,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:09,686 INFO L495 AbstractCegarLoop]: Abstraction has 12058 states and 21259 transitions. [2023-12-25 05:35:09,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-25 05:35:09,686 INFO L276 IsEmpty]: Start isEmpty. Operand 12058 states and 21259 transitions. [2023-12-25 05:35:09,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:35:09,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:09,687 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:09,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:09,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:09,895 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:09,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:09,896 INFO L85 PathProgramCache]: Analyzing trace with hash 381228146, now seen corresponding path program 1 times [2023-12-25 05:35:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:09,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851599040] [2023-12-25 05:35:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:09,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:09,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:09,898 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:09,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:35:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:10,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:35:10,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:35:10,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:10,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:10,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851599040] [2023-12-25 05:35:10,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851599040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:10,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:10,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:10,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754933575] [2023-12-25 05:35:10,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:10,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:10,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:10,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:10,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:10,208 INFO L87 Difference]: Start difference. First operand 12058 states and 21259 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:35:10,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:10,906 INFO L93 Difference]: Finished difference Result 24248 states and 43809 transitions. [2023-12-25 05:35:10,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:10,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2023-12-25 05:35:10,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:10,998 INFO L225 Difference]: With dead ends: 24248 [2023-12-25 05:35:10,998 INFO L226 Difference]: Without dead ends: 12202 [2023-12-25 05:35:11,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:11,073 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 21 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:11,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2542 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:11,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12202 states. [2023-12-25 05:35:11,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12202 to 12178. [2023-12-25 05:35:11,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12178 states, 9279 states have (on average 1.593490677874771) internal successors, (14786), 9633 states have internal predecessors, (14786), 2248 states have call successors, (2248), 699 states have call predecessors, (2248), 650 states have return successors, (4313), 2173 states have call predecessors, (4313), 2222 states have call successors, (4313) [2023-12-25 05:35:11,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12178 states to 12178 states and 21347 transitions. [2023-12-25 05:35:11,814 INFO L78 Accepts]: Start accepts. Automaton has 12178 states and 21347 transitions. Word has length 87 [2023-12-25 05:35:11,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:11,815 INFO L495 AbstractCegarLoop]: Abstraction has 12178 states and 21347 transitions. [2023-12-25 05:35:11,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-25 05:35:11,815 INFO L276 IsEmpty]: Start isEmpty. Operand 12178 states and 21347 transitions. [2023-12-25 05:35:11,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:35:11,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:11,816 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:11,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:12,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:12,027 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:12,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash 426083545, now seen corresponding path program 1 times [2023-12-25 05:35:12,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:12,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442095248] [2023-12-25 05:35:12,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:12,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:12,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:12,029 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:12,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:35:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:12,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:35:12,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-25 05:35:12,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:12,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:12,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442095248] [2023-12-25 05:35:12,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442095248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:12,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:12,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:35:12,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192461800] [2023-12-25 05:35:12,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:12,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:35:12,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:12,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:35:12,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:35:12,413 INFO L87 Difference]: Start difference. First operand 12178 states and 21347 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:13,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:13,841 INFO L93 Difference]: Finished difference Result 36768 states and 69804 transitions. [2023-12-25 05:35:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:35:13,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2023-12-25 05:35:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:14,046 INFO L225 Difference]: With dead ends: 36768 [2023-12-25 05:35:14,047 INFO L226 Difference]: Without dead ends: 24602 [2023-12-25 05:35:14,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:35:14,270 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 844 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:14,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 4339 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:35:14,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24602 states. [2023-12-25 05:35:15,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24602 to 24422. [2023-12-25 05:35:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24422 states, 18614 states have (on average 1.5890727409476737) internal successors, (29579), 19320 states have internal predecessors, (29579), 4485 states have call successors, (4485), 1395 states have call predecessors, (4485), 1322 states have return successors, (11662), 4362 states have call predecessors, (11662), 4435 states have call successors, (11662) [2023-12-25 05:35:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24422 states to 24422 states and 45726 transitions. [2023-12-25 05:35:16,038 INFO L78 Accepts]: Start accepts. Automaton has 24422 states and 45726 transitions. Word has length 97 [2023-12-25 05:35:16,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:16,038 INFO L495 AbstractCegarLoop]: Abstraction has 24422 states and 45726 transitions. [2023-12-25 05:35:16,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:35:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 24422 states and 45726 transitions. [2023-12-25 05:35:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 05:35:16,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:16,040 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:16,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:16,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:16,254 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:16,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:16,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1251317255, now seen corresponding path program 1 times [2023-12-25 05:35:16,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:16,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895413082] [2023-12-25 05:35:16,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:16,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:16,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:16,256 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:16,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:35:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:16,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:35:16,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-25 05:35:16,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:16,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:16,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895413082] [2023-12-25 05:35:16,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895413082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:16,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:16,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:35:16,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340070751] [2023-12-25 05:35:16,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:16,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:35:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:35:16,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:35:16,909 INFO L87 Difference]: Start difference. First operand 24422 states and 45726 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:35:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:18,342 INFO L93 Difference]: Finished difference Result 50648 states and 93624 transitions. [2023-12-25 05:35:18,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:35:18,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-12-25 05:35:18,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:18,555 INFO L225 Difference]: With dead ends: 50648 [2023-12-25 05:35:18,555 INFO L226 Difference]: Without dead ends: 26285 [2023-12-25 05:35:18,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:35:18,895 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 768 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:18,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1885 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:18,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26285 states. [2023-12-25 05:35:20,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26285 to 26146. [2023-12-25 05:35:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26146 states, 19908 states have (on average 1.5882559774964837) internal successors, (31619), 20649 states have internal predecessors, (31619), 4816 states have call successors, (4816), 1497 states have call predecessors, (4816), 1421 states have return successors, (12368), 4657 states have call predecessors, (12368), 4763 states have call successors, (12368) [2023-12-25 05:35:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26146 states to 26146 states and 48803 transitions. [2023-12-25 05:35:20,726 INFO L78 Accepts]: Start accepts. Automaton has 26146 states and 48803 transitions. Word has length 98 [2023-12-25 05:35:20,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:20,727 INFO L495 AbstractCegarLoop]: Abstraction has 26146 states and 48803 transitions. [2023-12-25 05:35:20,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:35:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 26146 states and 48803 transitions. [2023-12-25 05:35:20,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-25 05:35:20,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:20,730 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, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:20,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:20,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:20,940 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:20,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:20,940 INFO L85 PathProgramCache]: Analyzing trace with hash -596442600, now seen corresponding path program 1 times [2023-12-25 05:35:20,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:20,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732963271] [2023-12-25 05:35:20,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:20,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:20,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:20,943 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:20,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:35:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:21,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:35:21,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:21,401 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 05:35:21,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:21,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:21,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732963271] [2023-12-25 05:35:21,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732963271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:21,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:21,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:21,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5025591] [2023-12-25 05:35:21,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:21,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:21,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:21,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:21,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:21,403 INFO L87 Difference]: Start difference. First operand 26146 states and 48803 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, (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 05:35:23,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:23,766 INFO L93 Difference]: Finished difference Result 52484 states and 105217 transitions. [2023-12-25 05:35:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:23,767 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, (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 149 [2023-12-25 05:35:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:23,933 INFO L225 Difference]: With dead ends: 52484 [2023-12-25 05:35:23,933 INFO L226 Difference]: Without dead ends: 26350 [2023-12-25 05:35:24,255 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 05:35:24,255 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 802 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:24,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 2138 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26350 states. [2023-12-25 05:35:25,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26350 to 26350. [2023-12-25 05:35:25,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26350 states, 20061 states have (on average 1.5837695030158019) internal successors, (31772), 20802 states have internal predecessors, (31772), 4816 states have call successors, (4816), 1548 states have call predecessors, (4816), 1472 states have return successors, (12419), 4657 states have call predecessors, (12419), 4763 states have call successors, (12419) [2023-12-25 05:35:25,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26350 states to 26350 states and 49007 transitions. [2023-12-25 05:35:25,652 INFO L78 Accepts]: Start accepts. Automaton has 26350 states and 49007 transitions. Word has length 149 [2023-12-25 05:35:25,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:25,653 INFO L495 AbstractCegarLoop]: Abstraction has 26350 states and 49007 transitions. [2023-12-25 05:35:25,653 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, (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 05:35:25,653 INFO L276 IsEmpty]: Start isEmpty. Operand 26350 states and 49007 transitions. [2023-12-25 05:35:25,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-25 05:35:25,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:25,655 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, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:25,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:25,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:25,869 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:25,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2128206516, now seen corresponding path program 1 times [2023-12-25 05:35:25,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:25,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115587708] [2023-12-25 05:35:25,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:25,870 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 05:35:25,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:25,871 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:25,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:35:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:26,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:35:26,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:26,485 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 05:35:26,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:26,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:26,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115587708] [2023-12-25 05:35:26,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115587708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:26,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:26,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:26,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129070851] [2023-12-25 05:35:26,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:26,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:26,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:26,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:26,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:26,488 INFO L87 Difference]: Start difference. First operand 26350 states and 49007 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, (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 05:35:28,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:28,824 INFO L93 Difference]: Finished difference Result 52943 states and 105591 transitions. [2023-12-25 05:35:28,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:28,825 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, (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 151 [2023-12-25 05:35:28,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:29,234 INFO L225 Difference]: With dead ends: 52943 [2023-12-25 05:35:29,235 INFO L226 Difference]: Without dead ends: 26605 [2023-12-25 05:35:29,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 05:35:29,530 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 800 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:29,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 2139 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:35:29,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26605 states. [2023-12-25 05:35:30,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26605 to 26605. [2023-12-25 05:35:30,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26605 states, 20265 states have (on average 1.5778929188255613) internal successors, (31976), 21006 states have internal predecessors, (31976), 4816 states have call successors, (4816), 1599 states have call predecessors, (4816), 1523 states have return successors, (12470), 4657 states have call predecessors, (12470), 4763 states have call successors, (12470) [2023-12-25 05:35:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26605 states to 26605 states and 49262 transitions. [2023-12-25 05:35:31,027 INFO L78 Accepts]: Start accepts. Automaton has 26605 states and 49262 transitions. Word has length 151 [2023-12-25 05:35:31,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:31,027 INFO L495 AbstractCegarLoop]: Abstraction has 26605 states and 49262 transitions. [2023-12-25 05:35:31,028 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, (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 05:35:31,028 INFO L276 IsEmpty]: Start isEmpty. Operand 26605 states and 49262 transitions. [2023-12-25 05:35:31,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-25 05:35:31,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:31,031 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, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:31,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:31,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:31,245 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:31,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash -541109864, now seen corresponding path program 1 times [2023-12-25 05:35:31,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:31,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031769275] [2023-12-25 05:35:31,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:31,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:31,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:31,247 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:31,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:35:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:31,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:35:31,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:31,728 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 05:35:31,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:31,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:31,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031769275] [2023-12-25 05:35:31,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031769275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:31,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:31,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:31,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244543915] [2023-12-25 05:35:31,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:31,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:31,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:31,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:31,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:31,731 INFO L87 Difference]: Start difference. First operand 26605 states and 49262 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 05:35:34,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:34,101 INFO L93 Difference]: Finished difference Result 53504 states and 106091 transitions. [2023-12-25 05:35:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:34,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 153 [2023-12-25 05:35:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:34,270 INFO L225 Difference]: With dead ends: 53504 [2023-12-25 05:35:34,270 INFO L226 Difference]: Without dead ends: 26911 [2023-12-25 05:35:34,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 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 05:35:34,609 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 796 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:34,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 2139 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 05:35:34,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26911 states. [2023-12-25 05:35:35,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26911 to 26911. [2023-12-25 05:35:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26911 states, 20520 states have (on average 1.5707115009746588) internal successors, (32231), 21261 states have internal predecessors, (32231), 4816 states have call successors, (4816), 1650 states have call predecessors, (4816), 1574 states have return successors, (12521), 4657 states have call predecessors, (12521), 4763 states have call successors, (12521) [2023-12-25 05:35:36,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26911 states to 26911 states and 49568 transitions. [2023-12-25 05:35:36,130 INFO L78 Accepts]: Start accepts. Automaton has 26911 states and 49568 transitions. Word has length 153 [2023-12-25 05:35:36,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:36,131 INFO L495 AbstractCegarLoop]: Abstraction has 26911 states and 49568 transitions. [2023-12-25 05:35:36,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 05:35:36,131 INFO L276 IsEmpty]: Start isEmpty. Operand 26911 states and 49568 transitions. [2023-12-25 05:35:36,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-25 05:35:36,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:36,133 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, 1, 1, 1, 1, 1] [2023-12-25 05:35:36,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:36,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:36,347 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:36,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1189072596, now seen corresponding path program 1 times [2023-12-25 05:35:36,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:36,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054841010] [2023-12-25 05:35:36,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:36,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:36,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:36,350 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:36,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:35:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:36,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:35:36,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:36,781 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-25 05:35:36,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:36,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:36,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054841010] [2023-12-25 05:35:36,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054841010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:36,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:36,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 05:35:36,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077634031] [2023-12-25 05:35:36,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:36,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:35:36,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:36,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:35:36,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:35:36,784 INFO L87 Difference]: Start difference. First operand 26911 states and 49568 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:35:38,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:38,873 INFO L93 Difference]: Finished difference Result 61340 states and 117357 transitions. [2023-12-25 05:35:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:35:38,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2023-12-25 05:35:38,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:39,210 INFO L225 Difference]: With dead ends: 61340 [2023-12-25 05:35:39,210 INFO L226 Difference]: Without dead ends: 34441 [2023-12-25 05:35:39,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:39,363 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 629 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:39,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 2390 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:35:39,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34441 states. [2023-12-25 05:35:41,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34441 to 34385. [2023-12-25 05:35:41,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34385 states, 26075 states have (on average 1.521457334611697) internal successors, (39672), 26765 states have internal predecessors, (39672), 5959 states have call successors, (5959), 2372 states have call predecessors, (5959), 2350 states have return successors, (17644), 5903 states have call predecessors, (17644), 5872 states have call successors, (17644) [2023-12-25 05:35:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34385 states to 34385 states and 63275 transitions. [2023-12-25 05:35:41,389 INFO L78 Accepts]: Start accepts. Automaton has 34385 states and 63275 transitions. Word has length 154 [2023-12-25 05:35:41,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:41,390 INFO L495 AbstractCegarLoop]: Abstraction has 34385 states and 63275 transitions. [2023-12-25 05:35:41,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-25 05:35:41,390 INFO L276 IsEmpty]: Start isEmpty. Operand 34385 states and 63275 transitions. [2023-12-25 05:35:41,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-25 05:35:41,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:41,392 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, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:41,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:41,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:41,602 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:41,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:41,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1745730748, now seen corresponding path program 1 times [2023-12-25 05:35:41,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:41,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747469374] [2023-12-25 05:35:41,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:41,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:41,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:41,605 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:41,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:35:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:42,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:35:42,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:42,253 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 05:35:42,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:35:42,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:42,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747469374] [2023-12-25 05:35:42,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747469374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:35:42,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:35:42,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:35:42,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43421887] [2023-12-25 05:35:42,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:35:42,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:35:42,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:42,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:35:42,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:35:42,256 INFO L87 Difference]: Start difference. First operand 34385 states and 63275 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 05:35:45,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:35:45,192 INFO L93 Difference]: Finished difference Result 69262 states and 138261 transitions. [2023-12-25 05:35:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:35:45,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 155 [2023-12-25 05:35:45,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:35:45,393 INFO L225 Difference]: With dead ends: 69262 [2023-12-25 05:35:45,393 INFO L226 Difference]: Without dead ends: 34889 [2023-12-25 05:35:45,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 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 05:35:45,855 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 791 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:35:45,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 2139 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:35:45,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34889 states. [2023-12-25 05:35:47,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34889 to 34817. [2023-12-25 05:35:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34817 states, 26441 states have (on average 1.5142392496501644) internal successors, (40038), 27137 states have internal predecessors, (40038), 5959 states have call successors, (5959), 2432 states have call predecessors, (5959), 2416 states have return successors, (17693), 5903 states have call predecessors, (17693), 5872 states have call successors, (17693) [2023-12-25 05:35:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34817 states to 34817 states and 63690 transitions. [2023-12-25 05:35:47,922 INFO L78 Accepts]: Start accepts. Automaton has 34817 states and 63690 transitions. Word has length 155 [2023-12-25 05:35:47,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:35:47,922 INFO L495 AbstractCegarLoop]: Abstraction has 34817 states and 63690 transitions. [2023-12-25 05:35:47,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 05:35:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 34817 states and 63690 transitions. [2023-12-25 05:35:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-25 05:35:47,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:35:47,925 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, 1, 1, 1, 1, 1, 1] [2023-12-25 05:35:47,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:35:48,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:35:48,137 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:35:48,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:35:48,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1572429032, now seen corresponding path program 1 times [2023-12-25 05:35:48,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:35:48,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646295661] [2023-12-25 05:35:48,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:35:48,138 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 05:35:48,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:35:48,139 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:35:48,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:35:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:35:48,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:35:48,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:35:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-25 05:35:48,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:35:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-25 05:35:49,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:35:49,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646295661] [2023-12-25 05:35:49,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646295661] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:35:49,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:35:49,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 16 [2023-12-25 05:35:49,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415655765] [2023-12-25 05:35:49,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:35:49,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 05:35:49,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:35:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 05:35:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:35:49,214 INFO L87 Difference]: Start difference. First operand 34817 states and 63690 transitions. Second operand has 16 states, 14 states have (on average 12.928571428571429) internal successors, (181), 14 states have internal predecessors, (181), 10 states have call successors, (43), 7 states have call predecessors, (43), 9 states have return successors, (40), 12 states have call predecessors, (40), 10 states have call successors, (40) [2023-12-25 05:36:02,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:02,419 INFO L93 Difference]: Finished difference Result 115251 states and 257753 transitions. [2023-12-25 05:36:02,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-25 05:36:02,419 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 12.928571428571429) internal successors, (181), 14 states have internal predecessors, (181), 10 states have call successors, (43), 7 states have call predecessors, (43), 9 states have return successors, (40), 12 states have call predecessors, (40), 10 states have call successors, (40) Word has length 157 [2023-12-25 05:36:02,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:03,377 INFO L225 Difference]: With dead ends: 115251 [2023-12-25 05:36:03,377 INFO L226 Difference]: Without dead ends: 80446 [2023-12-25 05:36:03,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=763, Unknown=0, NotChecked=0, Total=992 [2023-12-25 05:36:03,973 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 5920 mSDsluCounter, 2517 mSDsCounter, 0 mSdLazyCounter, 7151 mSolverCounterSat, 1804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6039 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 8955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1804 IncrementalHoareTripleChecker+Valid, 7151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:03,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6039 Valid, 3274 Invalid, 8955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1804 Valid, 7151 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-25 05:36:04,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80446 states. [2023-12-25 05:36:08,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80446 to 73506. [2023-12-25 05:36:08,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73506 states, 55956 states have (on average 1.5225355636571591) internal successors, (85195), 57582 states have internal predecessors, (85195), 12439 states have call successors, (12439), 4934 states have call predecessors, (12439), 5110 states have return successors, (48160), 12445 states have call predecessors, (48160), 12318 states have call successors, (48160) [2023-12-25 05:36:10,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73506 states to 73506 states and 145794 transitions. [2023-12-25 05:36:10,306 INFO L78 Accepts]: Start accepts. Automaton has 73506 states and 145794 transitions. Word has length 157 [2023-12-25 05:36:10,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:10,307 INFO L495 AbstractCegarLoop]: Abstraction has 73506 states and 145794 transitions. [2023-12-25 05:36:10,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 12.928571428571429) internal successors, (181), 14 states have internal predecessors, (181), 10 states have call successors, (43), 7 states have call predecessors, (43), 9 states have return successors, (40), 12 states have call predecessors, (40), 10 states have call successors, (40) [2023-12-25 05:36:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 73506 states and 145794 transitions. [2023-12-25 05:36:10,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-25 05:36:10,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:10,310 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:10,324 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 05:36:10,524 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 05:36:10,525 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:10,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:10,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1146668885, now seen corresponding path program 1 times [2023-12-25 05:36:10,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:10,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540042411] [2023-12-25 05:36:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:10,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:10,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:10,527 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 05:36:10,527 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 05:36:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:10,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:36:10,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-25 05:36:11,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:36:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-25 05:36:11,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:11,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540042411] [2023-12-25 05:36:11,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540042411] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:36:11,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:36:11,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2023-12-25 05:36:11,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50170199] [2023-12-25 05:36:11,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:36:11,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-25 05:36:11,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:11,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-25 05:36:11,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-12-25 05:36:11,419 INFO L87 Difference]: Start difference. First operand 73506 states and 145794 transitions. Second operand has 19 states, 17 states have (on average 10.176470588235293) internal successors, (173), 15 states have internal predecessors, (173), 9 states have call successors, (40), 7 states have call predecessors, (40), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) [2023-12-25 05:36:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:32,583 INFO L93 Difference]: Finished difference Result 233010 states and 524525 transitions. [2023-12-25 05:36:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:36:32,585 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 10.176470588235293) internal successors, (173), 15 states have internal predecessors, (173), 9 states have call successors, (40), 7 states have call predecessors, (40), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) Word has length 164 [2023-12-25 05:36:32,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:34,763 INFO L225 Difference]: With dead ends: 233010 [2023-12-25 05:36:34,763 INFO L226 Difference]: Without dead ends: 159516 [2023-12-25 05:36:37,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=196, Invalid=796, Unknown=0, NotChecked=0, Total=992 [2023-12-25 05:36:37,017 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 8623 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 9235 mSolverCounterSat, 2618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8736 SdHoareTripleChecker+Valid, 5225 SdHoareTripleChecker+Invalid, 11853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2618 IncrementalHoareTripleChecker+Valid, 9235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:37,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8736 Valid, 5225 Invalid, 11853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2618 Valid, 9235 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-25 05:36:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159516 states.