/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_spec9_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:36:04,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:36:04,083 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 05:36:04,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:36:04,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:36:04,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:36:04,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:36:04,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:36:04,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:36:04,111 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:36:04,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:36:04,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:36:04,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:36:04,112 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:36:04,112 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:36:04,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:36:04,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:36:04,113 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:36:04,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:36:04,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:36:04,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:36:04,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:36:04,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:36:04,116 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:36:04,117 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:36:04,117 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:36:04,117 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:36:04,117 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:36:04,117 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:36:04,118 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:36:04,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:36:04,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:36:04,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:36:04,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:36:04,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:36:04,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:36:04,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:36:04,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:36:04,119 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:36:04,119 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:36:04,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:36:04,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:36:04,122 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:36:04,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:36:04,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:36:04,122 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:36:04,122 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:36:04,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:36:04,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:36:04,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:36:04,305 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:36:04,308 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:36:04,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product25.cil.c [2023-12-25 05:36:05,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:36:05,528 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:36:05,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product25.cil.c [2023-12-25 05:36:05,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cd6bfaac/f220188ed4e74060945024a78a929ba4/FLAG8dcb1e5c8 [2023-12-25 05:36:05,565 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cd6bfaac/f220188ed4e74060945024a78a929ba4 [2023-12-25 05:36:05,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:36:05,570 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:36:05,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:36:05,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:36:05,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:36:05,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:36:05" (1/1) ... [2023-12-25 05:36:05,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24dc3a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:05, skipping insertion in model container [2023-12-25 05:36:05,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:36:05" (1/1) ... [2023-12-25 05:36:05,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:36:05,930 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_spec9_product25.cil.c[23488,23501] [2023-12-25 05:36:06,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:36:06,021 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:36:06,036 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:36:06,110 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_spec9_product25.cil.c[23488,23501] [2023-12-25 05:36:06,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:36:06,159 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:36:06,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [48] [2023-12-25 05:36:06,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [213] [2023-12-25 05:36:06,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [334] [2023-12-25 05:36:06,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [432] [2023-12-25 05:36:06,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [446] [2023-12-25 05:36:06,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [812] [2023-12-25 05:36:06,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1166] [2023-12-25 05:36:06,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1175] [2023-12-25 05:36:06,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1842] [2023-12-25 05:36:06,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1877] [2023-12-25 05:36:06,191 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_spec9_product25.cil.c[23488,23501] [2023-12-25 05:36:06,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:36:06,260 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:36:06,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06 WrapperNode [2023-12-25 05:36:06,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:36:06,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:36:06,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:36:06,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:36:06,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,331 INFO L138 Inliner]: procedures = 93, calls = 331, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 764 [2023-12-25 05:36:06,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:36:06,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:36:06,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:36:06,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:36:06,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,362 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:36:06,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:36:06,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:36:06,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:36:06,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:36:06,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (1/1) ... [2023-12-25 05:36:06,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:36:06,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:36:06,482 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 05:36:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:36:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:36:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:36:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:36:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:36:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:36:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:36:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:36:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:36:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:36:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:36:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:36:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:36:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:36:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:36:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:36:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:36:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:36:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:36:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:36:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:36:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:36:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:36:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:36:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:36:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:36:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:36:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:36:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:36:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:36:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-12-25 05:36:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-12-25 05:36:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:36:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:36:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:36:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:36:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:36:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:36:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:36:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:36:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:36:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:36:06,502 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 05:36:06,659 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:36:06,661 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:36:07,535 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:36:07,652 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:36:07,653 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:36:07,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:36:07 BoogieIcfgContainer [2023-12-25 05:36:07,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:36:07,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:36:07,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:36:07,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:36:07,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:36:05" (1/3) ... [2023-12-25 05:36:07,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fce4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:36:07, skipping insertion in model container [2023-12-25 05:36:07,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:06" (2/3) ... [2023-12-25 05:36:07,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fce4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:36:07, skipping insertion in model container [2023-12-25 05:36:07,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:36:07" (3/3) ... [2023-12-25 05:36:07,659 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product25.cil.c [2023-12-25 05:36:07,670 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:36:07,671 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:36:07,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:36:07,733 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;@42f8d5aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:36:07,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:36:07,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 511 states, 403 states have (on average 1.751861042183623) internal successors, (706), 424 states have internal predecessors, (706), 85 states have call successors, (85), 21 states have call predecessors, (85), 21 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-25 05:36:07,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 05:36:07,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:07,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:07,759 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:07,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:07,763 INFO L85 PathProgramCache]: Analyzing trace with hash 796775558, now seen corresponding path program 1 times [2023-12-25 05:36:07,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:07,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583497937] [2023-12-25 05:36:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:07,777 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 05:36:07,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:07,779 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 05:36:07,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:36:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:08,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:36:08,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:08,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:08,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:08,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583497937] [2023-12-25 05:36:08,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583497937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:08,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:08,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:36:08,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000440548] [2023-12-25 05:36:08,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:08,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:36:08,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:08,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:36:08,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:36:08,153 INFO L87 Difference]: Start difference. First operand has 511 states, 403 states have (on average 1.751861042183623) internal successors, (706), 424 states have internal predecessors, (706), 85 states have call successors, (85), 21 states have call predecessors, (85), 21 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-25 05:36:08,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:08,252 INFO L93 Difference]: Finished difference Result 529 states and 903 transitions. [2023-12-25 05:36:08,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:36:08,258 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 67 [2023-12-25 05:36:08,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:08,279 INFO L225 Difference]: With dead ends: 529 [2023-12-25 05:36:08,279 INFO L226 Difference]: Without dead ends: 507 [2023-12-25 05:36:08,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:36:08,295 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:08,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 853 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:36:08,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-25 05:36:08,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-25 05:36:08,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 401 states have (on average 1.743142144638404) internal successors, (699), 420 states have internal predecessors, (699), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 864 transitions. [2023-12-25 05:36:08,356 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 864 transitions. Word has length 67 [2023-12-25 05:36:08,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:08,357 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 864 transitions. [2023-12-25 05:36:08,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-25 05:36:08,383 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 864 transitions. [2023-12-25 05:36:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 05:36:08,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:08,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:08,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:08,597 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 05:36:08,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:08,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:08,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1423892734, now seen corresponding path program 1 times [2023-12-25 05:36:08,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:08,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082950360] [2023-12-25 05:36:08,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:08,599 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 05:36:08,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:08,600 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 05:36:08,624 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 05:36:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:08,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:08,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:08,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:08,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:08,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082950360] [2023-12-25 05:36:08,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082950360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:08,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:08,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:08,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666905819] [2023-12-25 05:36:08,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:08,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:08,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:08,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:08,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:08,919 INFO L87 Difference]: Start difference. First operand 507 states and 864 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:09,053 INFO L93 Difference]: Finished difference Result 1002 states and 1710 transitions. [2023-12-25 05:36:09,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:09,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-12-25 05:36:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:09,060 INFO L225 Difference]: With dead ends: 1002 [2023-12-25 05:36:09,061 INFO L226 Difference]: Without dead ends: 507 [2023-12-25 05:36:09,066 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 05:36:09,066 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 14 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:09,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2509 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:36:09,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-25 05:36:09,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-25 05:36:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 401 states have (on average 1.740648379052369) internal successors, (698), 420 states have internal predecessors, (698), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:09,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 863 transitions. [2023-12-25 05:36:09,102 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 863 transitions. Word has length 68 [2023-12-25 05:36:09,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:09,102 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 863 transitions. [2023-12-25 05:36:09,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:09,102 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 863 transitions. [2023-12-25 05:36:09,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 05:36:09,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:09,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:09,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:09,317 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 05:36:09,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:09,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:09,318 INFO L85 PathProgramCache]: Analyzing trace with hash 433646512, now seen corresponding path program 1 times [2023-12-25 05:36:09,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:09,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348391205] [2023-12-25 05:36:09,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:09,319 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 05:36:09,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:09,320 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 05:36:09,321 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 05:36:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:09,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:09,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:09,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:09,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:09,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348391205] [2023-12-25 05:36:09,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348391205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:09,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:09,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:09,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339480067] [2023-12-25 05:36:09,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:09,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:09,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:09,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:09,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:09,592 INFO L87 Difference]: Start difference. First operand 507 states and 863 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:09,691 INFO L93 Difference]: Finished difference Result 1002 states and 1709 transitions. [2023-12-25 05:36:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:09,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2023-12-25 05:36:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:09,696 INFO L225 Difference]: With dead ends: 1002 [2023-12-25 05:36:09,696 INFO L226 Difference]: Without dead ends: 507 [2023-12-25 05:36:09,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:09,700 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 12 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:09,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2509 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:09,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-25 05:36:09,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-25 05:36:09,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 401 states have (on average 1.7381546134663342) internal successors, (697), 420 states have internal predecessors, (697), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:09,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 862 transitions. [2023-12-25 05:36:09,724 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 862 transitions. Word has length 69 [2023-12-25 05:36:09,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:09,725 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 862 transitions. [2023-12-25 05:36:09,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:09,725 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 862 transitions. [2023-12-25 05:36:09,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-25 05:36:09,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:09,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:09,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:09,937 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 05:36:09,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:09,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:09,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1159329210, now seen corresponding path program 1 times [2023-12-25 05:36:09,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:09,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397915355] [2023-12-25 05:36:09,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:09,940 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 05:36:09,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:09,941 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 05:36:09,942 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 05:36:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:10,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:10,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:10,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:10,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:10,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397915355] [2023-12-25 05:36:10,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397915355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:10,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:10,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:10,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443265207] [2023-12-25 05:36:10,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:10,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:10,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:10,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:10,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:10,218 INFO L87 Difference]: Start difference. First operand 507 states and 862 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:10,341 INFO L93 Difference]: Finished difference Result 1002 states and 1708 transitions. [2023-12-25 05:36:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:10,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 70 [2023-12-25 05:36:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:10,346 INFO L225 Difference]: With dead ends: 1002 [2023-12-25 05:36:10,347 INFO L226 Difference]: Without dead ends: 507 [2023-12-25 05:36:10,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:10,352 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 10 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:10,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2509 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-25 05:36:10,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-25 05:36:10,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 401 states have (on average 1.7356608478802993) internal successors, (696), 420 states have internal predecessors, (696), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:10,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 861 transitions. [2023-12-25 05:36:10,372 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 861 transitions. Word has length 70 [2023-12-25 05:36:10,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:10,372 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 861 transitions. [2023-12-25 05:36:10,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:10,372 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 861 transitions. [2023-12-25 05:36:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 05:36:10,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:10,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:10,385 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 (5)] Ended with exit code 0 [2023-12-25 05:36:10,583 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 05:36:10,583 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:10,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:10,584 INFO L85 PathProgramCache]: Analyzing trace with hash -755766420, now seen corresponding path program 1 times [2023-12-25 05:36:10,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:10,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061635419] [2023-12-25 05:36:10,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:10,584 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 05:36:10,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:10,591 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 05:36:10,632 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 05:36:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:10,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:10,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:10,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:10,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:10,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061635419] [2023-12-25 05:36:10,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061635419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:10,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:10,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:10,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829271148] [2023-12-25 05:36:10,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:10,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:10,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:10,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:10,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:10,889 INFO L87 Difference]: Start difference. First operand 507 states and 861 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:10,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:10,992 INFO L93 Difference]: Finished difference Result 1002 states and 1707 transitions. [2023-12-25 05:36:10,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:10,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2023-12-25 05:36:10,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:10,996 INFO L225 Difference]: With dead ends: 1002 [2023-12-25 05:36:10,996 INFO L226 Difference]: Without dead ends: 507 [2023-12-25 05:36:11,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:11,001 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 8 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:11,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2509 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:11,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-25 05:36:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-25 05:36:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 401 states have (on average 1.7331670822942644) internal successors, (695), 420 states have internal predecessors, (695), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:11,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 860 transitions. [2023-12-25 05:36:11,020 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 860 transitions. Word has length 71 [2023-12-25 05:36:11,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:11,020 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 860 transitions. [2023-12-25 05:36:11,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:11,020 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 860 transitions. [2023-12-25 05:36:11,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 05:36:11,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:11,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:11,033 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 05:36:11,233 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 05:36:11,234 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:11,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:11,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1364355702, now seen corresponding path program 1 times [2023-12-25 05:36:11,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:11,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689979370] [2023-12-25 05:36:11,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:11,235 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 05:36:11,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:11,236 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 05:36:11,256 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 05:36:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:11,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:11,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:11,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:11,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:11,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689979370] [2023-12-25 05:36:11,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689979370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:11,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:11,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:11,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202514003] [2023-12-25 05:36:11,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:11,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:11,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:11,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:11,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:11,493 INFO L87 Difference]: Start difference. First operand 507 states and 860 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:11,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:11,558 INFO L93 Difference]: Finished difference Result 1002 states and 1706 transitions. [2023-12-25 05:36:11,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:11,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2023-12-25 05:36:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:11,561 INFO L225 Difference]: With dead ends: 1002 [2023-12-25 05:36:11,561 INFO L226 Difference]: Without dead ends: 507 [2023-12-25 05:36:11,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:11,564 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 6 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:11,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2509 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:36:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-25 05:36:11,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-25 05:36:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 401 states have (on average 1.7306733167082293) internal successors, (694), 420 states have internal predecessors, (694), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 859 transitions. [2023-12-25 05:36:11,576 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 859 transitions. Word has length 72 [2023-12-25 05:36:11,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:11,576 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 859 transitions. [2023-12-25 05:36:11,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 859 transitions. [2023-12-25 05:36:11,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-25 05:36:11,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:11,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:11,588 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 05:36:11,787 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 05:36:11,787 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:11,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2080638265, now seen corresponding path program 1 times [2023-12-25 05:36:11,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:11,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759229873] [2023-12-25 05:36:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:11,788 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 05:36:11,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:11,789 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 05:36:11,812 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 05:36:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:12,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:12,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:12,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:12,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:12,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759229873] [2023-12-25 05:36:12,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759229873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:12,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:12,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:12,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669010603] [2023-12-25 05:36:12,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:12,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:12,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:12,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:12,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:12,051 INFO L87 Difference]: Start difference. First operand 507 states and 859 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:12,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:12,131 INFO L93 Difference]: Finished difference Result 1002 states and 1705 transitions. [2023-12-25 05:36:12,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:12,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2023-12-25 05:36:12,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:12,134 INFO L225 Difference]: With dead ends: 1002 [2023-12-25 05:36:12,135 INFO L226 Difference]: Without dead ends: 507 [2023-12-25 05:36:12,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:12,137 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 4 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:12,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2509 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:12,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-25 05:36:12,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-12-25 05:36:12,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 401 states have (on average 1.7281795511221945) internal successors, (693), 420 states have internal predecessors, (693), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 858 transitions. [2023-12-25 05:36:12,150 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 858 transitions. Word has length 73 [2023-12-25 05:36:12,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:12,150 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 858 transitions. [2023-12-25 05:36:12,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:12,150 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 858 transitions. [2023-12-25 05:36:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-25 05:36:12,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:12,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:12,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-25 05:36:12,359 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 05:36:12,359 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:12,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash -272790744, now seen corresponding path program 1 times [2023-12-25 05:36:12,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:12,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787719071] [2023-12-25 05:36:12,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:12,360 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 05:36:12,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:12,362 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 05:36:12,396 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 05:36:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:12,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:36:12,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:12,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:12,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:12,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787719071] [2023-12-25 05:36:12,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787719071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:12,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:12,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:36:12,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569480993] [2023-12-25 05:36:12,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:12,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:36:12,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:12,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:36:12,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:12,641 INFO L87 Difference]: Start difference. First operand 507 states and 858 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:12,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:12,772 INFO L93 Difference]: Finished difference Result 962 states and 1629 transitions. [2023-12-25 05:36:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:36:12,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2023-12-25 05:36:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:12,777 INFO L225 Difference]: With dead ends: 962 [2023-12-25 05:36:12,777 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 05:36:12,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 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 05:36:12,780 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 115 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4901 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:12,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4901 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:12,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 05:36:12,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-25 05:36:12,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 395 states have (on average 1.7215189873417722) internal successors, (680), 414 states have internal predecessors, (680), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:12,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 845 transitions. [2023-12-25 05:36:12,793 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 845 transitions. Word has length 73 [2023-12-25 05:36:12,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:12,793 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 845 transitions. [2023-12-25 05:36:12,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 845 transitions. [2023-12-25 05:36:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 05:36:12,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:12,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:12,805 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 05:36:13,003 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 05:36:13,004 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:13,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:13,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1512831812, now seen corresponding path program 1 times [2023-12-25 05:36:13,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:13,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062592966] [2023-12-25 05:36:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:13,006 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 05:36:13,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:13,007 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 05:36:13,032 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 05:36:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:13,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:13,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:13,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:13,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:13,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062592966] [2023-12-25 05:36:13,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062592966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:13,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:13,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:13,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227074438] [2023-12-25 05:36:13,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:13,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:13,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:13,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:13,272 INFO L87 Difference]: Start difference. First operand 501 states and 845 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:13,396 INFO L93 Difference]: Finished difference Result 956 states and 1616 transitions. [2023-12-25 05:36:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:13,397 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2023-12-25 05:36:13,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:13,399 INFO L225 Difference]: With dead ends: 956 [2023-12-25 05:36:13,399 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 05:36:13,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:13,402 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 88 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:13,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2325 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:13,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 05:36:13,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-25 05:36:13,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 395 states have (on average 1.7113924050632912) internal successors, (676), 414 states have internal predecessors, (676), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:13,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 841 transitions. [2023-12-25 05:36:13,413 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 841 transitions. Word has length 74 [2023-12-25 05:36:13,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:13,413 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 841 transitions. [2023-12-25 05:36:13,414 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:13,414 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 841 transitions. [2023-12-25 05:36:13,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-25 05:36:13,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:13,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:13,424 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 05:36:13,622 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 05:36:13,622 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:13,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:13,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2088159797, now seen corresponding path program 1 times [2023-12-25 05:36:13,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:13,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145706362] [2023-12-25 05:36:13,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:13,623 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 05:36:13,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:13,624 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 05:36:13,627 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 05:36:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:13,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:13,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:13,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:13,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:13,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:13,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145706362] [2023-12-25 05:36:13,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145706362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:13,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:13,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:13,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418642100] [2023-12-25 05:36:13,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:13,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:13,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:13,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:13,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:13,901 INFO L87 Difference]: Start difference. First operand 501 states and 841 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:14,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:14,007 INFO L93 Difference]: Finished difference Result 956 states and 1612 transitions. [2023-12-25 05:36:14,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:14,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2023-12-25 05:36:14,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:14,011 INFO L225 Difference]: With dead ends: 956 [2023-12-25 05:36:14,011 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 05:36:14,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:14,013 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 83 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:14,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2325 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:14,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 05:36:14,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-25 05:36:14,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 395 states have (on average 1.70126582278481) internal successors, (672), 414 states have internal predecessors, (672), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 837 transitions. [2023-12-25 05:36:14,026 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 837 transitions. Word has length 75 [2023-12-25 05:36:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:14,026 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 837 transitions. [2023-12-25 05:36:14,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:14,026 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 837 transitions. [2023-12-25 05:36:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 05:36:14,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:14,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:14,036 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 05:36:14,234 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 05:36:14,235 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:14,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:14,235 INFO L85 PathProgramCache]: Analyzing trace with hash 723505377, now seen corresponding path program 1 times [2023-12-25 05:36:14,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:14,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115727569] [2023-12-25 05:36:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:14,236 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 05:36:14,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:14,238 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 05:36:14,238 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 05:36:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:14,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:14,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:14,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:14,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:14,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:14,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115727569] [2023-12-25 05:36:14,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115727569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:14,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:14,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:14,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965121990] [2023-12-25 05:36:14,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:14,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:14,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:14,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:14,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:14,486 INFO L87 Difference]: Start difference. First operand 501 states and 837 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:14,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:14,585 INFO L93 Difference]: Finished difference Result 956 states and 1608 transitions. [2023-12-25 05:36:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:14,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2023-12-25 05:36:14,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:14,589 INFO L225 Difference]: With dead ends: 956 [2023-12-25 05:36:14,589 INFO L226 Difference]: Without dead ends: 501 [2023-12-25 05:36:14,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:14,591 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 78 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:14,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2325 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:14,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-25 05:36:14,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2023-12-25 05:36:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 395 states have (on average 1.691139240506329) internal successors, (668), 414 states have internal predecessors, (668), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 833 transitions. [2023-12-25 05:36:14,606 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 833 transitions. Word has length 76 [2023-12-25 05:36:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:14,607 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 833 transitions. [2023-12-25 05:36:14,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:14,607 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 833 transitions. [2023-12-25 05:36:14,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 05:36:14,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:14,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:14,615 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 (12)] Ended with exit code 0 [2023-12-25 05:36:14,815 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 05:36:14,816 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:14,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:14,816 INFO L85 PathProgramCache]: Analyzing trace with hash -670732959, now seen corresponding path program 1 times [2023-12-25 05:36:14,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:14,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917897459] [2023-12-25 05:36:14,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:14,817 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 05:36:14,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:14,818 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 05:36:14,819 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 05:36:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:15,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:36:15,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:15,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:15,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:15,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:15,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917897459] [2023-12-25 05:36:15,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917897459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:15,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:15,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:36:15,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259403207] [2023-12-25 05:36:15,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:15,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:36:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:15,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:36:15,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:15,103 INFO L87 Difference]: Start difference. First operand 501 states and 833 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:15,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:15,223 INFO L93 Difference]: Finished difference Result 956 states and 1604 transitions. [2023-12-25 05:36:15,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:36:15,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2023-12-25 05:36:15,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:15,227 INFO L225 Difference]: With dead ends: 956 [2023-12-25 05:36:15,227 INFO L226 Difference]: Without dead ends: 480 [2023-12-25 05:36:15,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:15,230 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 108 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 4766 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:15,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 4766 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:15,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-25 05:36:15,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-25 05:36:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 374 states have (on average 1.695187165775401) internal successors, (634), 393 states have internal predecessors, (634), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 799 transitions. [2023-12-25 05:36:15,240 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 799 transitions. Word has length 76 [2023-12-25 05:36:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:15,240 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 799 transitions. [2023-12-25 05:36:15,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 799 transitions. [2023-12-25 05:36:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 05:36:15,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:15,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:15,254 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 05:36:15,450 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 05:36:15,450 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:15,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:15,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1157776080, now seen corresponding path program 1 times [2023-12-25 05:36:15,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:15,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12201962] [2023-12-25 05:36:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:15,451 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 05:36:15,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:15,453 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 05:36:15,454 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 05:36:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:15,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:15,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:15,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:15,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:15,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:15,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12201962] [2023-12-25 05:36:15,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12201962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:15,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:15,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:15,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476989849] [2023-12-25 05:36:15,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:15,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:15,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:15,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:15,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:15,697 INFO L87 Difference]: Start difference. First operand 480 states and 799 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:15,769 INFO L93 Difference]: Finished difference Result 935 states and 1570 transitions. [2023-12-25 05:36:15,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:15,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2023-12-25 05:36:15,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:15,775 INFO L225 Difference]: With dead ends: 935 [2023-12-25 05:36:15,775 INFO L226 Difference]: Without dead ends: 480 [2023-12-25 05:36:15,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:15,777 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 39 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:15,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2311 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:15,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-25 05:36:15,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-25 05:36:15,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 374 states have (on average 1.6925133689839573) internal successors, (633), 393 states have internal predecessors, (633), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 798 transitions. [2023-12-25 05:36:15,788 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 798 transitions. Word has length 77 [2023-12-25 05:36:15,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:15,788 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 798 transitions. [2023-12-25 05:36:15,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:15,788 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 798 transitions. [2023-12-25 05:36:15,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-25 05:36:15,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:15,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:15,803 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 (14)] Ended with exit code 0 [2023-12-25 05:36:15,998 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 05:36:15,999 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:15,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:15,999 INFO L85 PathProgramCache]: Analyzing trace with hash 907262214, now seen corresponding path program 1 times [2023-12-25 05:36:15,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:15,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566075112] [2023-12-25 05:36:16,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:16,000 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 05:36:16,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:16,001 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 05:36:16,002 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 05:36:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:16,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:16,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:16,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:16,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:16,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566075112] [2023-12-25 05:36:16,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566075112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:16,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:16,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:16,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918221280] [2023-12-25 05:36:16,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:16,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:16,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:16,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:16,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:16,239 INFO L87 Difference]: Start difference. First operand 480 states and 798 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:16,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:16,306 INFO L93 Difference]: Finished difference Result 935 states and 1569 transitions. [2023-12-25 05:36:16,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:16,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2023-12-25 05:36:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:16,309 INFO L225 Difference]: With dead ends: 935 [2023-12-25 05:36:16,309 INFO L226 Difference]: Without dead ends: 480 [2023-12-25 05:36:16,310 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 05:36:16,310 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 37 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:16,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2311 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:16,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-25 05:36:16,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-25 05:36:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 374 states have (on average 1.6898395721925135) internal successors, (632), 393 states have internal predecessors, (632), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 797 transitions. [2023-12-25 05:36:16,320 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 797 transitions. Word has length 78 [2023-12-25 05:36:16,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:16,320 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 797 transitions. [2023-12-25 05:36:16,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:16,320 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 797 transitions. [2023-12-25 05:36:16,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 05:36:16,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:16,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:16,329 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 05:36:16,529 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 05:36:16,529 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:16,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:16,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2004918697, now seen corresponding path program 1 times [2023-12-25 05:36:16,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:16,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149064446] [2023-12-25 05:36:16,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:16,530 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 05:36:16,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:16,531 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 05:36:16,535 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 05:36:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:16,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:16,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:16,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:16,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:16,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149064446] [2023-12-25 05:36:16,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149064446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:16,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:16,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:16,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103050833] [2023-12-25 05:36:16,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:16,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:16,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:16,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:16,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:16,796 INFO L87 Difference]: Start difference. First operand 480 states and 797 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:16,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:16,873 INFO L93 Difference]: Finished difference Result 935 states and 1568 transitions. [2023-12-25 05:36:16,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:16,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2023-12-25 05:36:16,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:16,876 INFO L225 Difference]: With dead ends: 935 [2023-12-25 05:36:16,876 INFO L226 Difference]: Without dead ends: 480 [2023-12-25 05:36:16,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 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 05:36:16,878 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 35 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:16,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2311 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:16,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-25 05:36:16,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-25 05:36:16,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 374 states have (on average 1.6871657754010696) internal successors, (631), 393 states have internal predecessors, (631), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:16,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 796 transitions. [2023-12-25 05:36:16,887 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 796 transitions. Word has length 79 [2023-12-25 05:36:16,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:16,888 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 796 transitions. [2023-12-25 05:36:16,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-25 05:36:16,888 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 796 transitions. [2023-12-25 05:36:16,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 05:36:16,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:16,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:16,897 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 05:36:17,097 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 05:36:17,097 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:17,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:17,097 INFO L85 PathProgramCache]: Analyzing trace with hash 903263189, now seen corresponding path program 1 times [2023-12-25 05:36:17,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:17,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448297995] [2023-12-25 05:36:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:17,098 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 05:36:17,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:17,099 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 05:36:17,132 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 05:36:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:17,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:36:17,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:17,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:17,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:17,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448297995] [2023-12-25 05:36:17,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448297995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:17,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:17,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:36:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684449451] [2023-12-25 05:36:17,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:17,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:36:17,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:17,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:36:17,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:17,379 INFO L87 Difference]: Start difference. First operand 480 states and 796 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:17,530 INFO L93 Difference]: Finished difference Result 929 states and 1556 transitions. [2023-12-25 05:36:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:36:17,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 79 [2023-12-25 05:36:17,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:17,533 INFO L225 Difference]: With dead ends: 929 [2023-12-25 05:36:17,533 INFO L226 Difference]: Without dead ends: 480 [2023-12-25 05:36:17,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 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 05:36:17,535 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 24 mSDsluCounter, 4591 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5359 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:17,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5359 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:17,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-12-25 05:36:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-12-25 05:36:17,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 374 states have (on average 1.6844919786096257) internal successors, (630), 393 states have internal predecessors, (630), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-25 05:36:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 795 transitions. [2023-12-25 05:36:17,545 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 795 transitions. Word has length 79 [2023-12-25 05:36:17,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:17,545 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 795 transitions. [2023-12-25 05:36:17,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:17,546 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 795 transitions. [2023-12-25 05:36:17,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 05:36:17,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:17,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:17,555 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 05:36:17,755 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 05:36:17,755 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:17,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:17,755 INFO L85 PathProgramCache]: Analyzing trace with hash 26716667, now seen corresponding path program 1 times [2023-12-25 05:36:17,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:17,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695253209] [2023-12-25 05:36:17,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:17,756 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 05:36:17,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:17,763 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 05:36:17,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:36:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:17,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:36:17,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:18,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:18,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:18,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:18,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695253209] [2023-12-25 05:36:18,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695253209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:18,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:18,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:36:18,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329147968] [2023-12-25 05:36:18,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:18,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:36:18,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:18,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:36:18,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:36:18,183 INFO L87 Difference]: Start difference. First operand 480 states and 795 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:19,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:19,935 INFO L93 Difference]: Finished difference Result 927 states and 1570 transitions. [2023-12-25 05:36:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:36:19,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 80 [2023-12-25 05:36:19,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:19,938 INFO L225 Difference]: With dead ends: 927 [2023-12-25 05:36:19,939 INFO L226 Difference]: Without dead ends: 485 [2023-12-25 05:36:19,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:36:19,941 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1252 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 3431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:19,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 1651 Invalid, 3431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-25 05:36:19,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-12-25 05:36:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 484. [2023-12-25 05:36:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 377 states have (on average 1.6790450928381964) internal successors, (633), 396 states have internal predecessors, (633), 85 states have call successors, (85), 21 states have call predecessors, (85), 21 states have return successors, (96), 79 states have call predecessors, (96), 80 states have call successors, (96) [2023-12-25 05:36:19,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 814 transitions. [2023-12-25 05:36:19,956 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 814 transitions. Word has length 80 [2023-12-25 05:36:19,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:19,957 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 814 transitions. [2023-12-25 05:36:19,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:19,957 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 814 transitions. [2023-12-25 05:36:19,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-25 05:36:19,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:19,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:19,982 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 05:36:20,166 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 05:36:20,167 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:20,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:20,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1140273249, now seen corresponding path program 1 times [2023-12-25 05:36:20,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:20,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949173790] [2023-12-25 05:36:20,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:20,168 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 05:36:20,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:20,169 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 05:36:20,205 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 05:36:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:20,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:36:20,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:20,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:20,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:20,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:20,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949173790] [2023-12-25 05:36:20,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949173790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:20,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:20,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:36:20,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820419315] [2023-12-25 05:36:20,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:20,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:36:20,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:20,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:36:20,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:20,517 INFO L87 Difference]: Start difference. First operand 484 states and 814 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:23,861 INFO L93 Difference]: Finished difference Result 1721 states and 2985 transitions. [2023-12-25 05:36:23,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:36:23,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2023-12-25 05:36:23,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:23,876 INFO L225 Difference]: With dead ends: 1721 [2023-12-25 05:36:23,877 INFO L226 Difference]: Without dead ends: 1275 [2023-12-25 05:36:23,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:36:23,880 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 2209 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 4668 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 5222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 4668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:23,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2269 Valid, 2153 Invalid, 5222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 4668 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:36:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2023-12-25 05:36:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1221. [2023-12-25 05:36:23,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 950 states have (on average 1.6873684210526316) internal successors, (1603), 998 states have internal predecessors, (1603), 216 states have call successors, (216), 54 states have call predecessors, (216), 54 states have return successors, (231), 205 states have call predecessors, (231), 211 states have call successors, (231) [2023-12-25 05:36:23,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 2050 transitions. [2023-12-25 05:36:23,936 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 2050 transitions. Word has length 81 [2023-12-25 05:36:23,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:23,936 INFO L495 AbstractCegarLoop]: Abstraction has 1221 states and 2050 transitions. [2023-12-25 05:36:23,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 2050 transitions. [2023-12-25 05:36:23,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 05:36:23,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:23,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:23,948 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 05:36:24,145 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 05:36:24,146 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:24,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:24,146 INFO L85 PathProgramCache]: Analyzing trace with hash -812630195, now seen corresponding path program 1 times [2023-12-25 05:36:24,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:24,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710211092] [2023-12-25 05:36:24,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:24,147 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 05:36:24,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:24,149 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 05:36:24,149 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 05:36:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:24,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:36:24,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:24,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:24,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:24,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:24,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710211092] [2023-12-25 05:36:24,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710211092] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:24,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:24,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:36:24,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931383291] [2023-12-25 05:36:24,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:24,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:36:24,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:24,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:36:24,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:24,525 INFO L87 Difference]: Start difference. First operand 1221 states and 2050 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:28,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:28,397 INFO L93 Difference]: Finished difference Result 4830 states and 8419 transitions. [2023-12-25 05:36:28,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:36:28,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2023-12-25 05:36:28,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:28,420 INFO L225 Difference]: With dead ends: 4830 [2023-12-25 05:36:28,420 INFO L226 Difference]: Without dead ends: 3647 [2023-12-25 05:36:28,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:36:28,429 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 3574 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 5084 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3689 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 6086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 5084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:28,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3689 Valid, 2339 Invalid, 6086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 5084 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 05:36:28,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2023-12-25 05:36:28,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 2845. [2023-12-25 05:36:28,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2845 states, 2106 states have (on average 1.6718898385565053) internal successors, (3521), 2252 states have internal predecessors, (3521), 624 states have call successors, (624), 103 states have call predecessors, (624), 114 states have return successors, (751), 611 states have call predecessors, (751), 619 states have call successors, (751) [2023-12-25 05:36:28,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 4896 transitions. [2023-12-25 05:36:28,596 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 4896 transitions. Word has length 83 [2023-12-25 05:36:28,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:28,597 INFO L495 AbstractCegarLoop]: Abstraction has 2845 states and 4896 transitions. [2023-12-25 05:36:28,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 4896 transitions. [2023-12-25 05:36:28,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 05:36:28,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:28,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:28,604 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 05:36:28,804 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 05:36:28,805 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:28,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:28,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1841989493, now seen corresponding path program 1 times [2023-12-25 05:36:28,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:28,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835605160] [2023-12-25 05:36:28,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:28,806 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 05:36:28,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:28,807 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 05:36:28,808 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 05:36:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:29,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:36:29,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:29,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:29,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:29,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:29,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835605160] [2023-12-25 05:36:29,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835605160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:29,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:29,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:36:29,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994434898] [2023-12-25 05:36:29,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:29,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:36:29,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:29,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:36:29,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:29,169 INFO L87 Difference]: Start difference. First operand 2845 states and 4896 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:30,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:30,778 INFO L93 Difference]: Finished difference Result 5930 states and 10270 transitions. [2023-12-25 05:36:30,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:30,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2023-12-25 05:36:30,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:30,802 INFO L225 Difference]: With dead ends: 5930 [2023-12-25 05:36:30,802 INFO L226 Difference]: Without dead ends: 3888 [2023-12-25 05:36:30,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:30,814 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1398 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 2200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:30,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1103 Invalid, 2200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 05:36:30,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2023-12-25 05:36:30,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 2901. [2023-12-25 05:36:31,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 2115 states have (on average 1.6411347517730497) internal successors, (3471), 2272 states have internal predecessors, (3471), 672 states have call successors, (672), 95 states have call predecessors, (672), 113 states have return successors, (829), 653 states have call predecessors, (829), 667 states have call successors, (829) [2023-12-25 05:36:31,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 4972 transitions. [2023-12-25 05:36:31,046 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 4972 transitions. Word has length 83 [2023-12-25 05:36:31,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:31,046 INFO L495 AbstractCegarLoop]: Abstraction has 2901 states and 4972 transitions. [2023-12-25 05:36:31,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:31,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 4972 transitions. [2023-12-25 05:36:31,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 05:36:31,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:31,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:31,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:31,254 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 05:36:31,255 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:31,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:31,255 INFO L85 PathProgramCache]: Analyzing trace with hash -997983991, now seen corresponding path program 1 times [2023-12-25 05:36:31,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:31,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261427622] [2023-12-25 05:36:31,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:31,256 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 05:36:31,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:31,257 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 05:36:31,259 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 05:36:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:31,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:36:31,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:31,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:31,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:31,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261427622] [2023-12-25 05:36:31,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261427622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:31,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:31,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:36:31,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465693213] [2023-12-25 05:36:31,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:31,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:36:31,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:31,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:36:31,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:31,565 INFO L87 Difference]: Start difference. First operand 2901 states and 4972 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:34,314 INFO L93 Difference]: Finished difference Result 7783 states and 13582 transitions. [2023-12-25 05:36:34,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 05:36:34,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2023-12-25 05:36:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:34,344 INFO L225 Difference]: With dead ends: 7783 [2023-12-25 05:36:34,344 INFO L226 Difference]: Without dead ends: 5701 [2023-12-25 05:36:34,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:36:34,355 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 2493 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 3223 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 3710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 3223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:34,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 1414 Invalid, 3710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 3223 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 05:36:34,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2023-12-25 05:36:34,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 5416. [2023-12-25 05:36:34,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 3974 states have (on average 1.6411675893306492) internal successors, (6522), 4267 states have internal predecessors, (6522), 1212 states have call successors, (1212), 170 states have call predecessors, (1212), 229 states have return successors, (1646), 1178 states have call predecessors, (1646), 1207 states have call successors, (1646) [2023-12-25 05:36:34,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 9380 transitions. [2023-12-25 05:36:34,706 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 9380 transitions. Word has length 83 [2023-12-25 05:36:34,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:34,707 INFO L495 AbstractCegarLoop]: Abstraction has 5416 states and 9380 transitions. [2023-12-25 05:36:34,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-25 05:36:34,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 9380 transitions. [2023-12-25 05:36:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 05:36:34,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:34,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:34,715 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 (22)] Ended with exit code 0 [2023-12-25 05:36:34,914 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 05:36:34,915 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:34,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:34,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1885880436, now seen corresponding path program 1 times [2023-12-25 05:36:34,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:34,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092591074] [2023-12-25 05:36:34,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:34,916 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 05:36:34,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:34,917 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 05:36:34,919 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 05:36:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:35,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:36:35,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:35,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:35,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:35,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092591074] [2023-12-25 05:36:35,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092591074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:35,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:35,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:36:35,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569000389] [2023-12-25 05:36:35,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:35,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:36:35,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:35,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:36:35,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:36:35,316 INFO L87 Difference]: Start difference. First operand 5416 states and 9380 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-25 05:36:38,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:38,748 INFO L93 Difference]: Finished difference Result 10988 states and 19164 transitions. [2023-12-25 05:36:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:36:38,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 87 [2023-12-25 05:36:38,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:38,781 INFO L225 Difference]: With dead ends: 10988 [2023-12-25 05:36:38,782 INFO L226 Difference]: Without dead ends: 6391 [2023-12-25 05:36:38,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-12-25 05:36:38,800 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1908 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 4814 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 5245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 4814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:38,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 2128 Invalid, 5245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 4814 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-25 05:36:38,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6391 states. [2023-12-25 05:36:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6391 to 6014. [2023-12-25 05:36:39,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6014 states, 4382 states have (on average 1.6152441807393885) internal successors, (7078), 4723 states have internal predecessors, (7078), 1350 states have call successors, (1350), 210 states have call predecessors, (1350), 281 states have return successors, (1940), 1280 states have call predecessors, (1940), 1345 states have call successors, (1940) [2023-12-25 05:36:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6014 states to 6014 states and 10368 transitions. [2023-12-25 05:36:39,218 INFO L78 Accepts]: Start accepts. Automaton has 6014 states and 10368 transitions. Word has length 87 [2023-12-25 05:36:39,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:39,218 INFO L495 AbstractCegarLoop]: Abstraction has 6014 states and 10368 transitions. [2023-12-25 05:36:39,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-25 05:36:39,219 INFO L276 IsEmpty]: Start isEmpty. Operand 6014 states and 10368 transitions. [2023-12-25 05:36:39,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 05:36:39,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:39,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:39,229 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 05:36:39,427 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 05:36:39,427 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:39,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:39,427 INFO L85 PathProgramCache]: Analyzing trace with hash 708219595, now seen corresponding path program 1 times [2023-12-25 05:36:39,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:39,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544105422] [2023-12-25 05:36:39,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:39,428 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 05:36:39,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:39,429 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 05:36:39,430 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 05:36:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:39,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:39,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:39,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:39,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:39,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:39,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544105422] [2023-12-25 05:36:39,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544105422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:39,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:39,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:39,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960174568] [2023-12-25 05:36:39,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:39,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:39,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:39,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:39,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:39,678 INFO L87 Difference]: Start difference. First operand 6014 states and 10368 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:36:40,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:40,206 INFO L93 Difference]: Finished difference Result 11753 states and 20502 transitions. [2023-12-25 05:36:40,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:40,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2023-12-25 05:36:40,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:40,231 INFO L225 Difference]: With dead ends: 11753 [2023-12-25 05:36:40,231 INFO L226 Difference]: Without dead ends: 6014 [2023-12-25 05:36:40,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 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 05:36:40,248 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 234 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:40,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 2188 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:40,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2023-12-25 05:36:40,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 6014. [2023-12-25 05:36:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6014 states, 4382 states have (on average 1.5905979005020539) internal successors, (6970), 4723 states have internal predecessors, (6970), 1350 states have call successors, (1350), 210 states have call predecessors, (1350), 281 states have return successors, (1940), 1280 states have call predecessors, (1940), 1345 states have call successors, (1940) [2023-12-25 05:36:40,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6014 states to 6014 states and 10260 transitions. [2023-12-25 05:36:40,697 INFO L78 Accepts]: Start accepts. Automaton has 6014 states and 10260 transitions. Word has length 94 [2023-12-25 05:36:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:40,697 INFO L495 AbstractCegarLoop]: Abstraction has 6014 states and 10260 transitions. [2023-12-25 05:36:40,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-25 05:36:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 6014 states and 10260 transitions. [2023-12-25 05:36:40,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 05:36:40,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:40,699 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:40,710 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 05:36:40,909 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 05:36:40,909 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:40,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:40,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1834250223, now seen corresponding path program 1 times [2023-12-25 05:36:40,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:40,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704775658] [2023-12-25 05:36:40,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:40,910 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 05:36:40,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:40,926 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 05:36:40,960 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 05:36:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:41,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:36:41,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:41,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:36:41,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:41,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:41,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704775658] [2023-12-25 05:36:41,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704775658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:41,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:41,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:36:41,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284523523] [2023-12-25 05:36:41,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:41,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:36:41,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:41,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:36:41,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:41,266 INFO L87 Difference]: Start difference. First operand 6014 states and 10260 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-25 05:36:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:43,793 INFO L93 Difference]: Finished difference Result 11749 states and 20286 transitions. [2023-12-25 05:36:43,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:36:43,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 99 [2023-12-25 05:36:43,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:43,820 INFO L225 Difference]: With dead ends: 11749 [2023-12-25 05:36:43,821 INFO L226 Difference]: Without dead ends: 6667 [2023-12-25 05:36:43,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:36:43,837 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 1936 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 3059 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 3466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 3059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:43,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2005 Valid, 1331 Invalid, 3466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 3059 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 05:36:43,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6667 states. [2023-12-25 05:36:44,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6667 to 6274. [2023-12-25 05:36:44,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6274 states, 4574 states have (on average 1.5754263226934848) internal successors, (7206), 4937 states have internal predecessors, (7206), 1370 states have call successors, (1370), 238 states have call predecessors, (1370), 329 states have return successors, (2106), 1298 states have call predecessors, (2106), 1365 states have call successors, (2106) [2023-12-25 05:36:44,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6274 states to 6274 states and 10682 transitions. [2023-12-25 05:36:44,355 INFO L78 Accepts]: Start accepts. Automaton has 6274 states and 10682 transitions. Word has length 99 [2023-12-25 05:36:44,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:44,355 INFO L495 AbstractCegarLoop]: Abstraction has 6274 states and 10682 transitions. [2023-12-25 05:36:44,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-25 05:36:44,355 INFO L276 IsEmpty]: Start isEmpty. Operand 6274 states and 10682 transitions. [2023-12-25 05:36:44,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:36:44,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:44,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:44,366 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 05:36:44,564 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 05:36:44,564 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:44,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:44,565 INFO L85 PathProgramCache]: Analyzing trace with hash 957090978, now seen corresponding path program 1 times [2023-12-25 05:36:44,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:44,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423396598] [2023-12-25 05:36:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:44,566 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 05:36:44,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:44,567 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 05:36:44,604 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 05:36:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:44,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:36:44,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 05:36:44,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:44,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:44,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423396598] [2023-12-25 05:36:44,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423396598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:44,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:44,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:36:44,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321759115] [2023-12-25 05:36:44,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:44,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:36:44,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:44,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:36:44,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:44,962 INFO L87 Difference]: Start difference. First operand 6274 states and 10682 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:36:47,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:47,897 INFO L93 Difference]: Finished difference Result 11957 states and 20422 transitions. [2023-12-25 05:36:47,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:36:47,899 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 103 [2023-12-25 05:36:47,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:47,931 INFO L225 Difference]: With dead ends: 11957 [2023-12-25 05:36:47,931 INFO L226 Difference]: Without dead ends: 6614 [2023-12-25 05:36:47,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:36:47,950 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 1571 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 3885 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 4220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 3885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:47,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 1741 Invalid, 4220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 3885 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 05:36:47,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6614 states. [2023-12-25 05:36:48,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6614 to 6237. [2023-12-25 05:36:48,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6237 states, 4545 states have (on average 1.5724972497249725) internal successors, (7147), 4901 states have internal predecessors, (7147), 1368 states have call successors, (1368), 238 states have call predecessors, (1368), 323 states have return successors, (2037), 1297 states have call predecessors, (2037), 1363 states have call successors, (2037) [2023-12-25 05:36:48,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6237 states to 6237 states and 10552 transitions. [2023-12-25 05:36:48,375 INFO L78 Accepts]: Start accepts. Automaton has 6237 states and 10552 transitions. Word has length 103 [2023-12-25 05:36:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:48,376 INFO L495 AbstractCegarLoop]: Abstraction has 6237 states and 10552 transitions. [2023-12-25 05:36:48,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:36:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 6237 states and 10552 transitions. [2023-12-25 05:36:48,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:36:48,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:48,378 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:48,387 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 05:36:48,585 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 05:36:48,585 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:48,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:48,586 INFO L85 PathProgramCache]: Analyzing trace with hash -848347356, now seen corresponding path program 1 times [2023-12-25 05:36:48,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:48,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305359065] [2023-12-25 05:36:48,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:48,586 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 05:36:48,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:48,587 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 05:36:48,588 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 05:36:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:48,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:36:48,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:36:48,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:48,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:48,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305359065] [2023-12-25 05:36:48,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305359065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:48,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:48,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:36:48,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867590284] [2023-12-25 05:36:48,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:48,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:36:48,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:48,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:36:48,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:48,895 INFO L87 Difference]: Start difference. First operand 6237 states and 10552 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:36:52,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:52,275 INFO L93 Difference]: Finished difference Result 21914 states and 38578 transitions. [2023-12-25 05:36:52,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:36:52,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 103 [2023-12-25 05:36:52,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:52,343 INFO L225 Difference]: With dead ends: 21914 [2023-12-25 05:36:52,343 INFO L226 Difference]: Without dead ends: 15715 [2023-12-25 05:36:52,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:52,366 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 2541 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 2913 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2664 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 3518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 2913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:52,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2664 Valid, 1481 Invalid, 3518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 2913 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 05:36:52,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15715 states. [2023-12-25 05:36:53,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15715 to 15488. [2023-12-25 05:36:53,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15488 states, 10766 states have (on average 1.5687349061861415) internal successors, (16889), 11764 states have internal predecessors, (16889), 4024 states have call successors, (4024), 471 states have call predecessors, (4024), 697 states have return successors, (6047), 3927 states have call predecessors, (6047), 4019 states have call successors, (6047) [2023-12-25 05:36:53,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15488 states to 15488 states and 26960 transitions. [2023-12-25 05:36:53,688 INFO L78 Accepts]: Start accepts. Automaton has 15488 states and 26960 transitions. Word has length 103 [2023-12-25 05:36:53,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:53,688 INFO L495 AbstractCegarLoop]: Abstraction has 15488 states and 26960 transitions. [2023-12-25 05:36:53,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:36:53,688 INFO L276 IsEmpty]: Start isEmpty. Operand 15488 states and 26960 transitions. [2023-12-25 05:36:53,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:36:53,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:53,690 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:53,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:53,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:53,892 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:53,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:53,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1626642201, now seen corresponding path program 1 times [2023-12-25 05:36:53,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:53,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426255931] [2023-12-25 05:36:53,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:53,892 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 05:36:53,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:53,893 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:53,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 05:36:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:54,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:36:54,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:36:54,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:54,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:54,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426255931] [2023-12-25 05:36:54,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426255931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:54,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:54,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:36:54,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331384393] [2023-12-25 05:36:54,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:54,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:36:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:54,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:36:54,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:36:54,211 INFO L87 Difference]: Start difference. First operand 15488 states and 26960 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:37:00,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:00,072 INFO L93 Difference]: Finished difference Result 58307 states and 106350 transitions. [2023-12-25 05:37:00,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:37:00,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2023-12-25 05:37:00,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:00,334 INFO L225 Difference]: With dead ends: 58307 [2023-12-25 05:37:00,334 INFO L226 Difference]: Without dead ends: 42857 [2023-12-25 05:37:00,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:37:00,431 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 3043 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 2336 mSolverCounterSat, 684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3165 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 3020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 2336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:00,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3165 Valid, 1295 Invalid, 3020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 2336 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 05:37:00,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42857 states. [2023-12-25 05:37:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42857 to 42420. [2023-12-25 05:37:04,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42420 states, 28035 states have (on average 1.5690387016229712) internal successors, (43988), 31017 states have internal predecessors, (43988), 12804 states have call successors, (12804), 937 states have call predecessors, (12804), 1580 states have return successors, (19905), 12790 states have call predecessors, (19905), 12799 states have call successors, (19905) [2023-12-25 05:37:05,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42420 states to 42420 states and 76697 transitions. [2023-12-25 05:37:05,052 INFO L78 Accepts]: Start accepts. Automaton has 42420 states and 76697 transitions. Word has length 104 [2023-12-25 05:37:05,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:05,053 INFO L495 AbstractCegarLoop]: Abstraction has 42420 states and 76697 transitions. [2023-12-25 05:37:05,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:37:05,053 INFO L276 IsEmpty]: Start isEmpty. Operand 42420 states and 76697 transitions. [2023-12-25 05:37:05,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:37:05,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:05,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:05,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-25 05:37:05,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:05,263 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:05,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:05,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2026115328, now seen corresponding path program 1 times [2023-12-25 05:37:05,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:05,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679034041] [2023-12-25 05:37:05,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:05,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:05,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:05,265 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:05,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 05:37:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:05,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:37:05,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:37:05,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:05,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:05,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679034041] [2023-12-25 05:37:05,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679034041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:05,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:05,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:37:05,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195000433] [2023-12-25 05:37:05,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:05,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:37:05,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:05,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:37:05,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:37:05,604 INFO L87 Difference]: Start difference. First operand 42420 states and 76697 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:37:23,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:23,003 INFO L93 Difference]: Finished difference Result 171366 states and 326031 transitions. [2023-12-25 05:37:23,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:37:23,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2023-12-25 05:37:23,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:24,323 INFO L225 Difference]: With dead ends: 171366 [2023-12-25 05:37:24,324 INFO L226 Difference]: Without dead ends: 128984 [2023-12-25 05:37:24,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:37:24,766 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 2029 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:24,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 1587 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-25 05:37:24,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128984 states. [2023-12-25 05:37:39,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128984 to 128127. [2023-12-25 05:37:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128127 states, 80930 states have (on average 1.5723711849746695) internal successors, (127252), 90390 states have internal predecessors, (127252), 43340 states have call successors, (43340), 1869 states have call predecessors, (43340), 3856 states have return successors, (71007), 44032 states have call predecessors, (71007), 43335 states have call successors, (71007) [2023-12-25 05:37:41,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128127 states to 128127 states and 241599 transitions. [2023-12-25 05:37:41,223 INFO L78 Accepts]: Start accepts. Automaton has 128127 states and 241599 transitions. Word has length 105 [2023-12-25 05:37:41,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:41,224 INFO L495 AbstractCegarLoop]: Abstraction has 128127 states and 241599 transitions. [2023-12-25 05:37:41,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:37:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 128127 states and 241599 transitions. [2023-12-25 05:37:41,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:37:41,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:41,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:41,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-25 05:37:41,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:41,442 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:41,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:41,442 INFO L85 PathProgramCache]: Analyzing trace with hash 727950211, now seen corresponding path program 1 times [2023-12-25 05:37:41,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:41,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588270404] [2023-12-25 05:37:41,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:41,443 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 05:37:41,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:41,444 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:41,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 05:37:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:41,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:37:41,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:41,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 05:37:41,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:41,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:41,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588270404] [2023-12-25 05:37:41,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588270404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:41,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:41,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:37:41,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352211152] [2023-12-25 05:37:41,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:41,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:37:41,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:41,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:37:41,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:37:41,776 INFO L87 Difference]: Start difference. First operand 128127 states and 241599 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12)