/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_spec1_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:26:57,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:26:57,194 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 05:26:57,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:26:57,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:26:57,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:26:57,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:26:57,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:26:57,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:26:57,220 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:26:57,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:26:57,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:26:57,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:26:57,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:26:57,221 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:26:57,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:26:57,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:26:57,222 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:26:57,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:26:57,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:26:57,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:26:57,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:26:57,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:26:57,225 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:26:57,225 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:26:57,225 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:26:57,225 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:26:57,226 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:26:57,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:26:57,226 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:26:57,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:26:57,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:26:57,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:26:57,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:26:57,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:26:57,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:26:57,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:26:57,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:26:57,229 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:26:57,229 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:26:57,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:26:57,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:26:57,230 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:26:57,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:26:57,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:26:57,230 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:26:57,231 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:26:57,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:26:57,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:26:57,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:26:57,470 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:26:57,471 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:26:57,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product23.cil.c [2023-12-25 05:26:58,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:26:58,978 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:26:58,979 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product23.cil.c [2023-12-25 05:26:59,005 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d5e044ab/2a4c075dd11e4c5690ca822dc6daa43a/FLAG835dc7a43 [2023-12-25 05:26:59,019 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d5e044ab/2a4c075dd11e4c5690ca822dc6daa43a [2023-12-25 05:26:59,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:26:59,022 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:26:59,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:26:59,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:26:59,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:26:59,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:26:59,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7283f6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59, skipping insertion in model container [2023-12-25 05:26:59,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:26:59,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:26:59,574 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_spec1_product23.cil.c[58338,58351] [2023-12-25 05:26:59,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:26:59,624 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:26:59,642 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:26:59,735 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_spec1_product23.cil.c[58338,58351] [2023-12-25 05:26:59,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:26:59,750 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:26:59,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2023-12-25 05:26:59,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] [2023-12-25 05:26:59,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [516] [2023-12-25 05:26:59,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [700] [2023-12-25 05:26:59,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1055] [2023-12-25 05:26:59,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1175] [2023-12-25 05:26:59,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1188] [2023-12-25 05:26:59,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1223] [2023-12-25 05:26:59,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2820] [2023-12-25 05:26:59,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2829] [2023-12-25 05:26:59,811 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_spec1_product23.cil.c[58338,58351] [2023-12-25 05:26:59,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:26:59,854 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:26:59,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59 WrapperNode [2023-12-25 05:26:59,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:26:59,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:26:59,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:26:59,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:26:59,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:26:59,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:26:59,958 INFO L138 Inliner]: procedures = 98, calls = 348, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 854 [2023-12-25 05:26:59,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:26:59,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:26:59,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:26:59,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:26:59,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:26:59,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:26:59,987 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:27:00,022 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 05:27:00,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:27:00,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:27:00,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:27:00,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:27:00,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:27:00,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:27:00,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:27:00,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:27:00,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:27:00,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:27:00,092 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (1/1) ... [2023-12-25 05:27:00,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:27:00,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:27:00,154 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 05:27:00,181 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 05:27:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:27:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:27:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:27:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:27:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:27:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:27:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:27:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:27:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:27:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:27:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:27:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:27:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:27:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:27:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:27:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:27:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:27:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:27:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:27:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:27:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-12-25 05:27:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-12-25 05:27:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:27:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:27:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-25 05:27:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:27:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:27:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:27:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:27:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:27:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:27:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:27:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:27:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:27:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:27:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:27:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:27:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:27:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:27:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:27:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:27:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:27:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:27:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:27:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:27:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:27:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:27:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:27:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:27:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:27:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:27:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:27:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:27:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:27:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:27:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:27:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:27:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:27:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:27:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:27:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:27:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:27:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:27:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:27:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:27:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:27:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:27:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:27:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:27:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:27:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:27:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:27:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-12-25 05:27:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:27:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:27:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:27:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:27:00,437 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:27:00,440 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:27:01,637 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:27:01,772 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:27:01,772 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:27:01,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:27:01 BoogieIcfgContainer [2023-12-25 05:27:01,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:27:01,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:27:01,777 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:27:01,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:27:01,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:26:59" (1/3) ... [2023-12-25 05:27:01,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756312f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:27:01, skipping insertion in model container [2023-12-25 05:27:01,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:26:59" (2/3) ... [2023-12-25 05:27:01,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756312f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:27:01, skipping insertion in model container [2023-12-25 05:27:01,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:27:01" (3/3) ... [2023-12-25 05:27:01,784 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product23.cil.c [2023-12-25 05:27:01,800 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:27:01,801 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:27:01,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:27:01,882 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;@3dede589, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:27:01,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:27:01,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 572 states, 438 states have (on average 1.7077625570776256) internal successors, (748), 459 states have internal predecessors, (748), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 99 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-25 05:27:01,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:27:01,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:01,932 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:01,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:01,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:01,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1285667920, now seen corresponding path program 1 times [2023-12-25 05:27:01,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:01,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783800986] [2023-12-25 05:27:01,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:01,950 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 05:27:01,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:01,953 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 05:27:01,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:27:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:02,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:27:02,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 05:27:02,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:02,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:02,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783800986] [2023-12-25 05:27:02,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783800986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:02,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:02,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:27:02,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492026393] [2023-12-25 05:27:02,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:02,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:27:02,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:02,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:27:02,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:27:02,575 INFO L87 Difference]: Start difference. First operand has 572 states, 438 states have (on average 1.7077625570776256) internal successors, (748), 459 states have internal predecessors, (748), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 99 states have call predecessors, (105), 105 states have call successors, (105) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-25 05:27:02,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:02,709 INFO L93 Difference]: Finished difference Result 590 states and 985 transitions. [2023-12-25 05:27:02,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:27:02,712 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 113 [2023-12-25 05:27:02,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:02,739 INFO L225 Difference]: With dead ends: 590 [2023-12-25 05:27:02,739 INFO L226 Difference]: Without dead ends: 568 [2023-12-25 05:27:02,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 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 05:27:02,747 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:02,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 934 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:02,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-25 05:27:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-25 05:27:02,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 436 states have (on average 1.6995412844036697) internal successors, (741), 455 states have internal predecessors, (741), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:02,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 946 transitions. [2023-12-25 05:27:02,850 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 946 transitions. Word has length 113 [2023-12-25 05:27:02,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:02,856 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 946 transitions. [2023-12-25 05:27:02,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-25 05:27:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 946 transitions. [2023-12-25 05:27:02,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:27:02,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:02,867 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:02,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:03,074 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 05:27:03,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:03,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:03,076 INFO L85 PathProgramCache]: Analyzing trace with hash -272713378, now seen corresponding path program 1 times [2023-12-25 05:27:03,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:03,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479569138] [2023-12-25 05:27:03,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:03,078 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 05:27:03,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:03,079 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 05:27:03,082 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 05:27:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:03,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:03,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:03,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:03,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:03,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479569138] [2023-12-25 05:27:03,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479569138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:03,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:03,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:03,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057741761] [2023-12-25 05:27:03,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:03,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:03,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:03,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:03,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:03,538 INFO L87 Difference]: Start difference. First operand 568 states and 946 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:03,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:03,698 INFO L93 Difference]: Finished difference Result 1133 states and 1890 transitions. [2023-12-25 05:27:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:27:03,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 114 [2023-12-25 05:27:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:03,704 INFO L225 Difference]: With dead ends: 1133 [2023-12-25 05:27:03,704 INFO L226 Difference]: Without dead ends: 568 [2023-12-25 05:27:03,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 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 05:27:03,709 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 14 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:03,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2747 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:03,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-25 05:27:03,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-25 05:27:03,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 436 states have (on average 1.6972477064220184) internal successors, (740), 455 states have internal predecessors, (740), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 945 transitions. [2023-12-25 05:27:03,742 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 945 transitions. Word has length 114 [2023-12-25 05:27:03,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:03,742 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 945 transitions. [2023-12-25 05:27:03,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:03,743 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 945 transitions. [2023-12-25 05:27:03,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 05:27:03,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:03,748 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:03,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-25 05:27:03,960 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 05:27:03,960 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:03,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2066798560, now seen corresponding path program 1 times [2023-12-25 05:27:03,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:03,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715312538] [2023-12-25 05:27:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:03,962 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 05:27:03,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:03,964 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 05:27:03,966 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 05:27:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:04,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:04,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:04,429 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:04,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:04,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:04,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715312538] [2023-12-25 05:27:04,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715312538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:04,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:04,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:04,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9171690] [2023-12-25 05:27:04,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:04,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:04,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:04,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:04,432 INFO L87 Difference]: Start difference. First operand 568 states and 945 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:04,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:04,561 INFO L93 Difference]: Finished difference Result 1133 states and 1888 transitions. [2023-12-25 05:27:04,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:27:04,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 116 [2023-12-25 05:27:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:04,566 INFO L225 Difference]: With dead ends: 1133 [2023-12-25 05:27:04,566 INFO L226 Difference]: Without dead ends: 568 [2023-12-25 05:27:04,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 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 05:27:04,569 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 12 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:04,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2747 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:04,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-25 05:27:04,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-25 05:27:04,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 436 states have (on average 1.694954128440367) internal successors, (739), 455 states have internal predecessors, (739), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:04,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 944 transitions. [2023-12-25 05:27:04,592 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 944 transitions. Word has length 116 [2023-12-25 05:27:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:04,592 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 944 transitions. [2023-12-25 05:27:04,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 944 transitions. [2023-12-25 05:27:04,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:27:04,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:04,596 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:04,615 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 05:27:04,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:04,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:04,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:04,817 INFO L85 PathProgramCache]: Analyzing trace with hash 634426262, now seen corresponding path program 1 times [2023-12-25 05:27:04,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:04,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612517491] [2023-12-25 05:27:04,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:04,818 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 05:27:04,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:04,819 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 05:27:04,854 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 05:27:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:05,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:05,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:05,263 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:05,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:05,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:05,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612517491] [2023-12-25 05:27:05,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612517491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:05,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:05,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:05,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658844174] [2023-12-25 05:27:05,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:05,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:05,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:05,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:05,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:05,266 INFO L87 Difference]: Start difference. First operand 568 states and 944 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:05,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:05,396 INFO L93 Difference]: Finished difference Result 1137 states and 1891 transitions. [2023-12-25 05:27:05,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:27:05,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 118 [2023-12-25 05:27:05,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:05,402 INFO L225 Difference]: With dead ends: 1137 [2023-12-25 05:27:05,402 INFO L226 Difference]: Without dead ends: 574 [2023-12-25 05:27:05,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 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 05:27:05,407 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 13 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:05,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2747 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:05,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-12-25 05:27:05,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2023-12-25 05:27:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 441 states have (on average 1.6870748299319729) internal successors, (744), 460 states have internal predecessors, (744), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 949 transitions. [2023-12-25 05:27:05,433 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 949 transitions. Word has length 118 [2023-12-25 05:27:05,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:05,434 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 949 transitions. [2023-12-25 05:27:05,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:05,434 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 949 transitions. [2023-12-25 05:27:05,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 05:27:05,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:05,438 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:05,447 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 05:27:05,641 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 05:27:05,642 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:05,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:05,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1062251606, now seen corresponding path program 1 times [2023-12-25 05:27:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:05,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446007976] [2023-12-25 05:27:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:05,644 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 05:27:05,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:05,645 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 05:27:05,664 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 05:27:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:06,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:06,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:06,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:06,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:06,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446007976] [2023-12-25 05:27:06,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446007976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:06,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:06,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:06,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103119979] [2023-12-25 05:27:06,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:06,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:06,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:06,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:06,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:06,036 INFO L87 Difference]: Start difference. First operand 574 states and 949 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:06,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:06,145 INFO L93 Difference]: Finished difference Result 1136 states and 1882 transitions. [2023-12-25 05:27:06,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:27:06,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 119 [2023-12-25 05:27:06,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:06,150 INFO L225 Difference]: With dead ends: 1136 [2023-12-25 05:27:06,150 INFO L226 Difference]: Without dead ends: 574 [2023-12-25 05:27:06,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 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 05:27:06,153 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 8 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:06,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2748 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:06,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-12-25 05:27:06,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2023-12-25 05:27:06,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 441 states have (on average 1.6848072562358276) internal successors, (743), 460 states have internal predecessors, (743), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:06,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 948 transitions. [2023-12-25 05:27:06,172 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 948 transitions. Word has length 119 [2023-12-25 05:27:06,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:06,172 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 948 transitions. [2023-12-25 05:27:06,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:06,172 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 948 transitions. [2023-12-25 05:27:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-25 05:27:06,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:06,176 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:06,189 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 05:27:06,386 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 05:27:06,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:06,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:06,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1472201234, now seen corresponding path program 1 times [2023-12-25 05:27:06,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:06,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47291234] [2023-12-25 05:27:06,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:06,388 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 05:27:06,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:06,389 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 05:27:06,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:27:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:06,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:06,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:06,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:06,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:06,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47291234] [2023-12-25 05:27:06,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47291234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:06,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:06,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:06,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105577622] [2023-12-25 05:27:06,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:06,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:06,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:06,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:06,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:06,811 INFO L87 Difference]: Start difference. First operand 574 states and 948 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:06,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:06,909 INFO L93 Difference]: Finished difference Result 1136 states and 1881 transitions. [2023-12-25 05:27:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:27:06,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 120 [2023-12-25 05:27:06,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:06,913 INFO L225 Difference]: With dead ends: 1136 [2023-12-25 05:27:06,913 INFO L226 Difference]: Without dead ends: 574 [2023-12-25 05:27:06,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 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 05:27:06,917 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 6 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:06,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2748 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:06,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-12-25 05:27:06,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2023-12-25 05:27:06,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 441 states have (on average 1.6825396825396826) internal successors, (742), 460 states have internal predecessors, (742), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:06,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 947 transitions. [2023-12-25 05:27:06,935 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 947 transitions. Word has length 120 [2023-12-25 05:27:06,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:06,936 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 947 transitions. [2023-12-25 05:27:06,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:06,936 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 947 transitions. [2023-12-25 05:27:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:27:06,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:06,939 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:06,955 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 05:27:07,151 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 05:27:07,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:07,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:07,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1328003666, now seen corresponding path program 1 times [2023-12-25 05:27:07,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:07,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828732224] [2023-12-25 05:27:07,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:07,152 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 05:27:07,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:07,153 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 05:27:07,154 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 05:27:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:07,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:27:07,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:07,589 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:27:07,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:07,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:07,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828732224] [2023-12-25 05:27:07,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828732224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:07,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:07,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:27:07,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034286717] [2023-12-25 05:27:07,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:07,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:27:07,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:07,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:27:07,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:27:07,592 INFO L87 Difference]: Start difference. First operand 574 states and 947 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:07,816 INFO L93 Difference]: Finished difference Result 1152 states and 1908 transitions. [2023-12-25 05:27:07,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:27:07,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 121 [2023-12-25 05:27:07,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:07,823 INFO L225 Difference]: With dead ends: 1152 [2023-12-25 05:27:07,823 INFO L226 Difference]: Without dead ends: 594 [2023-12-25 05:27:07,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 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 05:27:07,827 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 146 mSDsluCounter, 4480 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 5397 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:07,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 5397 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:07,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-12-25 05:27:07,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 592. [2023-12-25 05:27:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 456 states have (on average 1.6820175438596492) internal successors, (767), 477 states have internal predecessors, (767), 106 states have call successors, (106), 28 states have call predecessors, (106), 29 states have return successors, (104), 99 states have call predecessors, (104), 101 states have call successors, (104) [2023-12-25 05:27:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 977 transitions. [2023-12-25 05:27:07,848 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 977 transitions. Word has length 121 [2023-12-25 05:27:07,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:07,848 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 977 transitions. [2023-12-25 05:27:07,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 977 transitions. [2023-12-25 05:27:07,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:27:07,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:07,853 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:07,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:08,063 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 05:27:08,063 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:08,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1885155343, now seen corresponding path program 1 times [2023-12-25 05:27:08,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:08,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337806378] [2023-12-25 05:27:08,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:08,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:08,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:08,066 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 05:27:08,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:27:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:08,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:08,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:08,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:08,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:08,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337806378] [2023-12-25 05:27:08,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337806378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:08,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:08,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:08,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023962104] [2023-12-25 05:27:08,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:08,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:08,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:08,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:08,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:08,498 INFO L87 Difference]: Start difference. First operand 592 states and 977 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:08,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:08,601 INFO L93 Difference]: Finished difference Result 1164 states and 1929 transitions. [2023-12-25 05:27:08,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:27:08,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2023-12-25 05:27:08,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:08,605 INFO L225 Difference]: With dead ends: 1164 [2023-12-25 05:27:08,605 INFO L226 Difference]: Without dead ends: 588 [2023-12-25 05:27:08,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 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 05:27:08,609 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 8 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:08,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2747 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:08,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-12-25 05:27:08,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2023-12-25 05:27:08,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 454 states have (on average 1.6828193832599119) internal successors, (764), 474 states have internal predecessors, (764), 105 states have call successors, (105), 28 states have call predecessors, (105), 28 states have return successors, (101), 98 states have call predecessors, (101), 100 states have call successors, (101) [2023-12-25 05:27:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 970 transitions. [2023-12-25 05:27:08,630 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 970 transitions. Word has length 121 [2023-12-25 05:27:08,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:08,630 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 970 transitions. [2023-12-25 05:27:08,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 970 transitions. [2023-12-25 05:27:08,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:27:08,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:08,634 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:08,651 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 05:27:08,845 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 05:27:08,846 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:08,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:08,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1579612154, now seen corresponding path program 1 times [2023-12-25 05:27:08,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:08,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239938734] [2023-12-25 05:27:08,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:08,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:08,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:08,848 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 05:27:08,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:27:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:09,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:09,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:27:09,220 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:09,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:09,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239938734] [2023-12-25 05:27:09,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239938734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:09,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:09,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:09,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357730119] [2023-12-25 05:27:09,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:09,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:09,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:09,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:09,222 INFO L87 Difference]: Start difference. First operand 588 states and 970 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:09,413 INFO L93 Difference]: Finished difference Result 1188 states and 1972 transitions. [2023-12-25 05:27:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:27:09,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 122 [2023-12-25 05:27:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:09,419 INFO L225 Difference]: With dead ends: 1188 [2023-12-25 05:27:09,419 INFO L226 Difference]: Without dead ends: 588 [2023-12-25 05:27:09,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 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 05:27:09,422 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 132 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:09,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 2557 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:09,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-12-25 05:27:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2023-12-25 05:27:09,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 454 states have (on average 1.671806167400881) internal successors, (759), 474 states have internal predecessors, (759), 105 states have call successors, (105), 28 states have call predecessors, (105), 28 states have return successors, (101), 98 states have call predecessors, (101), 100 states have call successors, (101) [2023-12-25 05:27:09,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 965 transitions. [2023-12-25 05:27:09,441 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 965 transitions. Word has length 122 [2023-12-25 05:27:09,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:09,441 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 965 transitions. [2023-12-25 05:27:09,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:09,441 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 965 transitions. [2023-12-25 05:27:09,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:27:09,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:09,445 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:09,456 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 05:27:09,655 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 05:27:09,656 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:09,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:09,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1215740770, now seen corresponding path program 1 times [2023-12-25 05:27:09,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:09,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332451589] [2023-12-25 05:27:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:09,657 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 05:27:09,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:09,658 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 05:27:09,660 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 05:27:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:10,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:10,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:10,036 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:27:10,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:10,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:10,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332451589] [2023-12-25 05:27:10,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332451589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:10,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:10,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:10,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101190636] [2023-12-25 05:27:10,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:10,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:10,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:10,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:10,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:10,038 INFO L87 Difference]: Start difference. First operand 588 states and 965 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:10,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:10,224 INFO L93 Difference]: Finished difference Result 1188 states and 1962 transitions. [2023-12-25 05:27:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:27:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2023-12-25 05:27:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:10,228 INFO L225 Difference]: With dead ends: 1188 [2023-12-25 05:27:10,228 INFO L226 Difference]: Without dead ends: 588 [2023-12-25 05:27:10,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 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 05:27:10,232 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 126 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:10,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2557 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:10,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-12-25 05:27:10,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2023-12-25 05:27:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 454 states have (on average 1.6607929515418502) internal successors, (754), 474 states have internal predecessors, (754), 105 states have call successors, (105), 28 states have call predecessors, (105), 28 states have return successors, (101), 98 states have call predecessors, (101), 100 states have call successors, (101) [2023-12-25 05:27:10,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 960 transitions. [2023-12-25 05:27:10,249 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 960 transitions. Word has length 124 [2023-12-25 05:27:10,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:10,249 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 960 transitions. [2023-12-25 05:27:10,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:10,249 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 960 transitions. [2023-12-25 05:27:10,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:27:10,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:10,253 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:10,266 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 05:27:10,466 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 05:27:10,466 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:10,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:10,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1480547524, now seen corresponding path program 1 times [2023-12-25 05:27:10,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:10,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746511690] [2023-12-25 05:27:10,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:10,468 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 05:27:10,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:10,469 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 05:27:10,481 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 05:27:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:10,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:10,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:27:10,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:10,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:10,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746511690] [2023-12-25 05:27:10,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746511690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:10,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:10,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:10,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110697261] [2023-12-25 05:27:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:10,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:10,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:10,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:10,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:10,902 INFO L87 Difference]: Start difference. First operand 588 states and 960 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:11,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:11,096 INFO L93 Difference]: Finished difference Result 1209 states and 1983 transitions. [2023-12-25 05:27:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:27:11,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 126 [2023-12-25 05:27:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:11,101 INFO L225 Difference]: With dead ends: 1209 [2023-12-25 05:27:11,101 INFO L226 Difference]: Without dead ends: 617 [2023-12-25 05:27:11,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:27:11,104 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 141 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:11,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 2567 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2023-12-25 05:27:11,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 603. [2023-12-25 05:27:11,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 469 states have (on average 1.6396588486140724) internal successors, (769), 488 states have internal predecessors, (769), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:11,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 974 transitions. [2023-12-25 05:27:11,120 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 974 transitions. Word has length 126 [2023-12-25 05:27:11,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:11,121 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 974 transitions. [2023-12-25 05:27:11,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:11,121 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 974 transitions. [2023-12-25 05:27:11,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 05:27:11,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:11,124 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:11,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:11,335 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 05:27:11,336 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:11,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:11,336 INFO L85 PathProgramCache]: Analyzing trace with hash 764729668, now seen corresponding path program 1 times [2023-12-25 05:27:11,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:11,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017321634] [2023-12-25 05:27:11,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:11,337 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 05:27:11,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:11,338 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 05:27:11,339 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 05:27:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:11,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:27:11,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:27:11,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:11,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:11,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017321634] [2023-12-25 05:27:11,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017321634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:11,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:11,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:27:11,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068863885] [2023-12-25 05:27:11,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:11,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:27:11,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:11,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:27:11,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:27:11,764 INFO L87 Difference]: Start difference. First operand 603 states and 974 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:11,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:11,952 INFO L93 Difference]: Finished difference Result 1174 states and 1905 transitions. [2023-12-25 05:27:11,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:27:11,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 126 [2023-12-25 05:27:11,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:11,957 INFO L225 Difference]: With dead ends: 1174 [2023-12-25 05:27:11,958 INFO L226 Difference]: Without dead ends: 596 [2023-12-25 05:27:11,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 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 05:27:11,962 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 130 mSDsluCounter, 4439 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:11,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 5357 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:11,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-12-25 05:27:11,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 582. [2023-12-25 05:27:11,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 448 states have (on average 1.6339285714285714) internal successors, (732), 467 states have internal predecessors, (732), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:11,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 937 transitions. [2023-12-25 05:27:11,985 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 937 transitions. Word has length 126 [2023-12-25 05:27:11,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:11,985 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 937 transitions. [2023-12-25 05:27:11,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:11,986 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 937 transitions. [2023-12-25 05:27:11,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:27:11,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:11,989 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:12,000 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 05:27:12,200 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 05:27:12,200 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:12,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:12,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1729559201, now seen corresponding path program 1 times [2023-12-25 05:27:12,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:12,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992001478] [2023-12-25 05:27:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:12,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:12,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:12,203 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 05:27:12,204 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 05:27:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:12,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:12,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:27:12,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:12,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:12,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992001478] [2023-12-25 05:27:12,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992001478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:12,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:12,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:12,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455420127] [2023-12-25 05:27:12,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:12,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:12,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:12,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:12,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:12,605 INFO L87 Difference]: Start difference. First operand 582 states and 937 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:12,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:12,728 INFO L93 Difference]: Finished difference Result 1139 states and 1844 transitions. [2023-12-25 05:27:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:27:12,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2023-12-25 05:27:12,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:12,733 INFO L225 Difference]: With dead ends: 1139 [2023-12-25 05:27:12,733 INFO L226 Difference]: Without dead ends: 582 [2023-12-25 05:27:12,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 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 05:27:12,737 INFO L413 NwaCegarLoop]: 887 mSDtfsCounter, 68 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:12,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 2579 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-25 05:27:12,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-12-25 05:27:12,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 448 states have (on average 1.6316964285714286) internal successors, (731), 467 states have internal predecessors, (731), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:12,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 936 transitions. [2023-12-25 05:27:12,755 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 936 transitions. Word has length 127 [2023-12-25 05:27:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:12,756 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 936 transitions. [2023-12-25 05:27:12,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 936 transitions. [2023-12-25 05:27:12,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 05:27:12,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:12,760 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:12,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:12,972 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 05:27:12,973 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:12,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:12,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2132451113, now seen corresponding path program 1 times [2023-12-25 05:27:12,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:12,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90131392] [2023-12-25 05:27:12,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:12,974 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 05:27:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:12,976 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 05:27:12,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:27:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:13,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:27:13,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:27:13,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:13,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:13,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90131392] [2023-12-25 05:27:13,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90131392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:13,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:13,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:13,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912988357] [2023-12-25 05:27:13,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:13,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:27:13,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:13,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:27:13,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:27:13,338 INFO L87 Difference]: Start difference. First operand 582 states and 936 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:13,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:13,475 INFO L93 Difference]: Finished difference Result 1139 states and 1843 transitions. [2023-12-25 05:27:13,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:27:13,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2023-12-25 05:27:13,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:13,480 INFO L225 Difference]: With dead ends: 1139 [2023-12-25 05:27:13,480 INFO L226 Difference]: Without dead ends: 582 [2023-12-25 05:27:13,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 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 05:27:13,483 INFO L413 NwaCegarLoop]: 887 mSDtfsCounter, 66 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:13,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 2579 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-25 05:27:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-12-25 05:27:13,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 448 states have (on average 1.6294642857142858) internal successors, (730), 467 states have internal predecessors, (730), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 935 transitions. [2023-12-25 05:27:13,502 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 935 transitions. Word has length 128 [2023-12-25 05:27:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:13,502 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 935 transitions. [2023-12-25 05:27:13,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:27:13,502 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 935 transitions. [2023-12-25 05:27:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 05:27:13,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:13,506 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:13,521 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 05:27:13,718 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 05:27:13,718 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:13,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1891790244, now seen corresponding path program 1 times [2023-12-25 05:27:13,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:13,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024615691] [2023-12-25 05:27:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:13,719 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 05:27:13,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:13,721 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 05:27:13,722 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 05:27:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:14,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:27:14,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:27:14,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:14,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:14,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024615691] [2023-12-25 05:27:14,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024615691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:14,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:14,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:27:14,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803719775] [2023-12-25 05:27:14,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:14,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:27:14,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:14,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:27:14,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:27:14,141 INFO L87 Difference]: Start difference. First operand 582 states and 935 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:14,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:14,401 INFO L93 Difference]: Finished difference Result 1143 states and 1849 transitions. [2023-12-25 05:27:14,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:27:14,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2023-12-25 05:27:14,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:14,405 INFO L225 Difference]: With dead ends: 1143 [2023-12-25 05:27:14,405 INFO L226 Difference]: Without dead ends: 592 [2023-12-25 05:27:14,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 122 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 05:27:14,408 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 81 mSDsluCounter, 5134 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 5998 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:14,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 5998 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-12-25 05:27:14,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 584. [2023-12-25 05:27:14,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 450 states have (on average 1.6244444444444444) internal successors, (731), 469 states have internal predecessors, (731), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:14,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 936 transitions. [2023-12-25 05:27:14,423 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 936 transitions. Word has length 129 [2023-12-25 05:27:14,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:14,423 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 936 transitions. [2023-12-25 05:27:14,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 936 transitions. [2023-12-25 05:27:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 05:27:14,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:14,427 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:14,442 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 05:27:14,637 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 05:27:14,637 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:14,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:14,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1892764066, now seen corresponding path program 1 times [2023-12-25 05:27:14,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:14,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549587573] [2023-12-25 05:27:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:14,638 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 05:27:14,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:14,639 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 05:27:14,642 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 05:27:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:14,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:27:14,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:27:15,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:15,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:15,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549587573] [2023-12-25 05:27:15,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549587573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:15,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:15,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:27:15,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906490161] [2023-12-25 05:27:15,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:15,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:27:15,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:27:15,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:27:15,038 INFO L87 Difference]: Start difference. First operand 584 states and 936 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:15,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:15,276 INFO L93 Difference]: Finished difference Result 1135 states and 1830 transitions. [2023-12-25 05:27:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:27:15,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 130 [2023-12-25 05:27:15,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:15,280 INFO L225 Difference]: With dead ends: 1135 [2023-12-25 05:27:15,280 INFO L226 Difference]: Without dead ends: 588 [2023-12-25 05:27:15,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 123 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 05:27:15,283 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 71 mSDsluCounter, 5130 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 5996 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:15,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 5996 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:15,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-12-25 05:27:15,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 586. [2023-12-25 05:27:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 452 states have (on average 1.6194690265486726) internal successors, (732), 471 states have internal predecessors, (732), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:15,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 937 transitions. [2023-12-25 05:27:15,297 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 937 transitions. Word has length 130 [2023-12-25 05:27:15,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:15,297 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 937 transitions. [2023-12-25 05:27:15,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:15,298 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 937 transitions. [2023-12-25 05:27:15,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-25 05:27:15,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:15,300 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:15,312 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 05:27:15,508 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 05:27:15,509 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:15,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:15,509 INFO L85 PathProgramCache]: Analyzing trace with hash -695438118, now seen corresponding path program 1 times [2023-12-25 05:27:15,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:15,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034265363] [2023-12-25 05:27:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:15,510 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 05:27:15,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:15,511 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 05:27:15,512 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 05:27:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:15,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:27:15,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:15,903 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:27:15,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:15,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:15,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034265363] [2023-12-25 05:27:15,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034265363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:15,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:15,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:27:15,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714524785] [2023-12-25 05:27:15,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:15,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:27:15,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:15,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:27:15,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:27:15,908 INFO L87 Difference]: Start difference. First operand 586 states and 937 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:16,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:16,091 INFO L93 Difference]: Finished difference Result 1083 states and 1759 transitions. [2023-12-25 05:27:16,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:27:16,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2023-12-25 05:27:16,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:16,095 INFO L225 Difference]: With dead ends: 1083 [2023-12-25 05:27:16,095 INFO L226 Difference]: Without dead ends: 579 [2023-12-25 05:27:16,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 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 05:27:16,098 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 54 mSDsluCounter, 4319 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 5195 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:16,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 5195 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:16,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-12-25 05:27:16,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2023-12-25 05:27:16,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 445 states have (on average 1.6269662921348316) internal successors, (724), 464 states have internal predecessors, (724), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:16,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 929 transitions. [2023-12-25 05:27:16,114 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 929 transitions. Word has length 131 [2023-12-25 05:27:16,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:16,115 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 929 transitions. [2023-12-25 05:27:16,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:16,115 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 929 transitions. [2023-12-25 05:27:16,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:27:16,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:16,118 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:16,141 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 05:27:16,332 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 05:27:16,333 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:16,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:16,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1705594360, now seen corresponding path program 1 times [2023-12-25 05:27:16,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:16,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949500964] [2023-12-25 05:27:16,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:16,334 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 05:27:16,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:16,336 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 05:27:16,346 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 05:27:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:16,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:27:16,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:27:16,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:16,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:16,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949500964] [2023-12-25 05:27:16,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949500964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:16,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:16,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:27:16,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456913446] [2023-12-25 05:27:16,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:16,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:27:16,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:16,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:27:16,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:27:16,738 INFO L87 Difference]: Start difference. First operand 579 states and 929 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:16,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:16,899 INFO L93 Difference]: Finished difference Result 1088 states and 1773 transitions. [2023-12-25 05:27:16,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:27:16,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2023-12-25 05:27:16,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:16,904 INFO L225 Difference]: With dead ends: 1088 [2023-12-25 05:27:16,904 INFO L226 Difference]: Without dead ends: 576 [2023-12-25 05:27:16,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 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 05:27:16,907 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 95 mSDsluCounter, 4293 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5163 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:16,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5163 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:16,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-12-25 05:27:16,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2023-12-25 05:27:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 442 states have (on average 1.6266968325791855) internal successors, (719), 461 states have internal predecessors, (719), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 924 transitions. [2023-12-25 05:27:16,924 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 924 transitions. Word has length 132 [2023-12-25 05:27:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:16,924 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 924 transitions. [2023-12-25 05:27:16,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 924 transitions. [2023-12-25 05:27:16,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:27:16,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:16,927 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:16,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:17,138 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 05:27:17,139 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:17,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:17,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1371123336, now seen corresponding path program 1 times [2023-12-25 05:27:17,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:17,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858413978] [2023-12-25 05:27:17,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:17,140 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 05:27:17,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:17,142 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 05:27:17,144 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 05:27:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:17,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:27:17,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:27:17,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:17,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:17,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858413978] [2023-12-25 05:27:17,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858413978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:17,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:17,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:27:17,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047197457] [2023-12-25 05:27:17,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:17,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:27:17,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:17,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:27:17,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:27:17,536 INFO L87 Difference]: Start difference. First operand 576 states and 924 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:17,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:17,716 INFO L93 Difference]: Finished difference Result 1085 states and 1768 transitions. [2023-12-25 05:27:17,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:27:17,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2023-12-25 05:27:17,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:17,721 INFO L225 Difference]: With dead ends: 1085 [2023-12-25 05:27:17,721 INFO L226 Difference]: Without dead ends: 568 [2023-12-25 05:27:17,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 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 05:27:17,723 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 103 mSDsluCounter, 4284 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 5153 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:17,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 5153 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:27:17,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-25 05:27:17,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-25 05:27:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 434 states have (on average 1.631336405529954) internal successors, (708), 453 states have internal predecessors, (708), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 913 transitions. [2023-12-25 05:27:17,740 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 913 transitions. Word has length 132 [2023-12-25 05:27:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:17,740 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 913 transitions. [2023-12-25 05:27:17,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 913 transitions. [2023-12-25 05:27:17,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-25 05:27:17,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:17,743 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:17,761 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 05:27:17,952 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 05:27:17,952 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:17,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:17,953 INFO L85 PathProgramCache]: Analyzing trace with hash -521915714, now seen corresponding path program 1 times [2023-12-25 05:27:17,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:17,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114713088] [2023-12-25 05:27:17,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:17,953 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 05:27:17,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:17,955 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 05:27:17,955 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 05:27:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:18,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:27:18,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:27:18,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:18,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:18,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114713088] [2023-12-25 05:27:18,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114713088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:18,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:18,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:27:18,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380067698] [2023-12-25 05:27:18,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:18,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:27:18,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:18,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:27:18,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:27:18,356 INFO L87 Difference]: Start difference. First operand 568 states and 913 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:18,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:18,596 INFO L93 Difference]: Finished difference Result 1071 states and 1746 transitions. [2023-12-25 05:27:18,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:27:18,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2023-12-25 05:27:18,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:18,600 INFO L225 Difference]: With dead ends: 1071 [2023-12-25 05:27:18,600 INFO L226 Difference]: Without dead ends: 568 [2023-12-25 05:27:18,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 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 05:27:18,602 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 52 mSDsluCounter, 5121 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 5984 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:18,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 5984 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:18,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-25 05:27:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-25 05:27:18,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 434 states have (on average 1.6290322580645162) internal successors, (707), 453 states have internal predecessors, (707), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 912 transitions. [2023-12-25 05:27:18,618 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 912 transitions. Word has length 133 [2023-12-25 05:27:18,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:18,618 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 912 transitions. [2023-12-25 05:27:18,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 912 transitions. [2023-12-25 05:27:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 05:27:18,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:18,621 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:18,632 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 05:27:18,832 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 05:27:18,832 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:18,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:18,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1747112378, now seen corresponding path program 1 times [2023-12-25 05:27:18,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:18,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073523678] [2023-12-25 05:27:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:18,834 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 05:27:18,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:18,835 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 05:27:18,853 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 05:27:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:19,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:27:19,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:27:19,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:19,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:19,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073523678] [2023-12-25 05:27:19,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073523678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:19,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:19,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:27:19,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043916711] [2023-12-25 05:27:19,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:19,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:27:19,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:19,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:27:19,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:27:19,246 INFO L87 Difference]: Start difference. First operand 568 states and 912 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:19,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:19,466 INFO L93 Difference]: Finished difference Result 1113 states and 1801 transitions. [2023-12-25 05:27:19,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:27:19,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2023-12-25 05:27:19,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:19,471 INFO L225 Difference]: With dead ends: 1113 [2023-12-25 05:27:19,471 INFO L226 Difference]: Without dead ends: 565 [2023-12-25 05:27:19,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 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 05:27:19,474 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 73 mSDsluCounter, 5075 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 5928 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:19,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 5928 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:19,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-12-25 05:27:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2023-12-25 05:27:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 431 states have (on average 1.6218097447795823) internal successors, (699), 450 states have internal predecessors, (699), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:19,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 904 transitions. [2023-12-25 05:27:19,491 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 904 transitions. Word has length 134 [2023-12-25 05:27:19,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:19,492 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 904 transitions. [2023-12-25 05:27:19,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:19,492 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 904 transitions. [2023-12-25 05:27:19,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:27:19,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:19,495 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:19,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:19,706 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 05:27:19,706 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:19,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:19,707 INFO L85 PathProgramCache]: Analyzing trace with hash -472903933, now seen corresponding path program 1 times [2023-12-25 05:27:19,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:19,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238720041] [2023-12-25 05:27:19,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:19,707 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 05:27:19,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:19,709 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 05:27:19,709 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 05:27:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:20,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:27:20,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:27:20,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:20,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:20,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238720041] [2023-12-25 05:27:20,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238720041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:20,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:20,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:27:20,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282490577] [2023-12-25 05:27:20,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:20,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:27:20,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:20,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:27:20,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:27:20,207 INFO L87 Difference]: Start difference. First operand 565 states and 904 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:20,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:20,422 INFO L93 Difference]: Finished difference Result 1062 states and 1726 transitions. [2023-12-25 05:27:20,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:27:20,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2023-12-25 05:27:20,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:20,427 INFO L225 Difference]: With dead ends: 1062 [2023-12-25 05:27:20,427 INFO L226 Difference]: Without dead ends: 565 [2023-12-25 05:27:20,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:27:20,430 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 47 mSDsluCounter, 5068 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5920 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:20,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 5920 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:20,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-12-25 05:27:20,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2023-12-25 05:27:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 431 states have (on average 1.6194895591647331) internal successors, (698), 450 states have internal predecessors, (698), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:20,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 903 transitions. [2023-12-25 05:27:20,446 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 903 transitions. Word has length 135 [2023-12-25 05:27:20,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:20,446 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 903 transitions. [2023-12-25 05:27:20,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 903 transitions. [2023-12-25 05:27:20,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 05:27:20,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:20,449 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:20,467 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 05:27:20,660 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 05:27:20,661 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:20,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:20,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1187433623, now seen corresponding path program 1 times [2023-12-25 05:27:20,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:20,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366765044] [2023-12-25 05:27:20,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:20,662 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 05:27:20,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:20,663 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 05:27:20,665 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 05:27:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:20,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:27:20,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:27:21,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:21,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:21,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366765044] [2023-12-25 05:27:21,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366765044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:21,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:21,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:27:21,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461710569] [2023-12-25 05:27:21,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:21,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:27:21,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:21,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:27:21,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:27:21,064 INFO L87 Difference]: Start difference. First operand 565 states and 903 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:21,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:21,307 INFO L93 Difference]: Finished difference Result 1098 states and 1769 transitions. [2023-12-25 05:27:21,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:27:21,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 136 [2023-12-25 05:27:21,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:21,311 INFO L225 Difference]: With dead ends: 1098 [2023-12-25 05:27:21,311 INFO L226 Difference]: Without dead ends: 562 [2023-12-25 05:27:21,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 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 05:27:21,314 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 63 mSDsluCounter, 5060 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 5912 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:21,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 5912 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:21,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-12-25 05:27:21,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2023-12-25 05:27:21,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 428 states have (on average 1.6121495327102804) internal successors, (690), 447 states have internal predecessors, (690), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-25 05:27:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 895 transitions. [2023-12-25 05:27:21,330 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 895 transitions. Word has length 136 [2023-12-25 05:27:21,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:21,331 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 895 transitions. [2023-12-25 05:27:21,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 895 transitions. [2023-12-25 05:27:21,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:27:21,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:21,333 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:21,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:21,543 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 05:27:21,543 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:21,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1185954312, now seen corresponding path program 1 times [2023-12-25 05:27:21,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:21,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423272930] [2023-12-25 05:27:21,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:21,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:21,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:21,546 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 05:27:21,547 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 05:27:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:21,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:27:21,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:27:22,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:22,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:22,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423272930] [2023-12-25 05:27:22,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423272930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:22,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:22,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:22,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381590624] [2023-12-25 05:27:22,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:22,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:27:22,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:22,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:27:22,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:27:22,044 INFO L87 Difference]: Start difference. First operand 562 states and 895 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:27:22,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:22,803 INFO L93 Difference]: Finished difference Result 1056 states and 1739 transitions. [2023-12-25 05:27:22,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:27:22,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 137 [2023-12-25 05:27:22,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:22,808 INFO L225 Difference]: With dead ends: 1056 [2023-12-25 05:27:22,808 INFO L226 Difference]: Without dead ends: 566 [2023-12-25 05:27:22,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:27:22,811 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 803 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:22,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 2138 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:27:22,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-25 05:27:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-25 05:27:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 431 states have (on average 1.6078886310904872) internal successors, (693), 450 states have internal predecessors, (693), 105 states have call successors, (105), 30 states have call predecessors, (105), 29 states have return successors, (101), 98 states have call predecessors, (101), 100 states have call successors, (101) [2023-12-25 05:27:22,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 899 transitions. [2023-12-25 05:27:22,830 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 899 transitions. Word has length 137 [2023-12-25 05:27:22,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:22,831 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 899 transitions. [2023-12-25 05:27:22,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:27:22,831 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 899 transitions. [2023-12-25 05:27:22,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 05:27:22,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:22,833 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:22,845 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 05:27:23,046 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 05:27:23,046 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:23,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:23,047 INFO L85 PathProgramCache]: Analyzing trace with hash 774447822, now seen corresponding path program 1 times [2023-12-25 05:27:23,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:23,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187445191] [2023-12-25 05:27:23,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:23,048 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 05:27:23,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:23,049 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 05:27:23,050 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 05:27:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:23,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:27:23,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:27:23,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:23,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:23,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187445191] [2023-12-25 05:27:23,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187445191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:23,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:23,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:23,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730881706] [2023-12-25 05:27:23,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:23,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:27:23,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:23,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:27:23,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:27:23,540 INFO L87 Difference]: Start difference. First operand 566 states and 899 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:27:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:24,279 INFO L93 Difference]: Finished difference Result 1065 states and 1746 transitions. [2023-12-25 05:27:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:27:24,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2023-12-25 05:27:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:24,282 INFO L225 Difference]: With dead ends: 1065 [2023-12-25 05:27:24,282 INFO L226 Difference]: Without dead ends: 571 [2023-12-25 05:27:24,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:27:24,286 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 814 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:24,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 2139 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:27:24,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-25 05:27:24,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-25 05:27:24,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 435 states have (on average 1.6022988505747127) internal successors, (697), 454 states have internal predecessors, (697), 105 states have call successors, (105), 31 states have call predecessors, (105), 30 states have return successors, (102), 98 states have call predecessors, (102), 100 states have call successors, (102) [2023-12-25 05:27:24,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 904 transitions. [2023-12-25 05:27:24,304 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 904 transitions. Word has length 139 [2023-12-25 05:27:24,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:24,304 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 904 transitions. [2023-12-25 05:27:24,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:27:24,305 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 904 transitions. [2023-12-25 05:27:24,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:27:24,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:24,307 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:24,323 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 05:27:24,519 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 05:27:24,519 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:24,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:24,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1620064072, now seen corresponding path program 1 times [2023-12-25 05:27:24,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:24,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906136589] [2023-12-25 05:27:24,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:24,520 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 05:27:24,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:24,522 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 05:27:24,526 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 05:27:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:24,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:27:24,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:27:25,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:25,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:25,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906136589] [2023-12-25 05:27:25,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906136589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:25,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:25,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:25,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028945288] [2023-12-25 05:27:25,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:25,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:27:25,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:25,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:27:25,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:27:25,042 INFO L87 Difference]: Start difference. First operand 571 states and 904 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:27:25,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:25,786 INFO L93 Difference]: Finished difference Result 1076 states and 1755 transitions. [2023-12-25 05:27:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:27:25,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2023-12-25 05:27:25,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:25,789 INFO L225 Difference]: With dead ends: 1076 [2023-12-25 05:27:25,789 INFO L226 Difference]: Without dead ends: 577 [2023-12-25 05:27:25,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:27:25,792 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 802 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:25,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 2139 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 05:27:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-12-25 05:27:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2023-12-25 05:27:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 440 states have (on average 1.5954545454545455) internal successors, (702), 459 states have internal predecessors, (702), 105 states have call successors, (105), 32 states have call predecessors, (105), 31 states have return successors, (103), 98 states have call predecessors, (103), 100 states have call successors, (103) [2023-12-25 05:27:25,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 910 transitions. [2023-12-25 05:27:25,810 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 910 transitions. Word has length 141 [2023-12-25 05:27:25,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:25,810 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 910 transitions. [2023-12-25 05:27:25,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:27:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 910 transitions. [2023-12-25 05:27:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-25 05:27:25,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:25,813 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:25,832 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 05:27:26,025 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 05:27:26,026 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:26,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash -244189674, now seen corresponding path program 1 times [2023-12-25 05:27:26,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:26,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161841098] [2023-12-25 05:27:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:26,027 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 05:27:26,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:26,028 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 05:27:26,028 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 05:27:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:26,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:27:26,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:26,518 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 05:27:26,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:26,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:26,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161841098] [2023-12-25 05:27:26,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161841098] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:26,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:26,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:27:26,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674355042] [2023-12-25 05:27:26,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:26,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:27:26,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:26,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:27:26,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:27:26,521 INFO L87 Difference]: Start difference. First operand 577 states and 910 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:27:27,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:27,163 INFO L93 Difference]: Finished difference Result 1089 states and 1766 transitions. [2023-12-25 05:27:27,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:27:27,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-12-25 05:27:27,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:27,167 INFO L225 Difference]: With dead ends: 1089 [2023-12-25 05:27:27,167 INFO L226 Difference]: Without dead ends: 584 [2023-12-25 05:27:27,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:27:27,170 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 802 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:27,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 2139 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:27:27,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-25 05:27:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2023-12-25 05:27:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 446 states have (on average 1.5874439461883407) internal successors, (708), 465 states have internal predecessors, (708), 105 states have call successors, (105), 33 states have call predecessors, (105), 32 states have return successors, (104), 98 states have call predecessors, (104), 100 states have call successors, (104) [2023-12-25 05:27:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 917 transitions. [2023-12-25 05:27:27,188 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 917 transitions. Word has length 143 [2023-12-25 05:27:27,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:27,189 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 917 transitions. [2023-12-25 05:27:27,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-25 05:27:27,189 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 917 transitions. [2023-12-25 05:27:27,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-25 05:27:27,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:27,191 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:27,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:27,405 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 05:27:27,405 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:27,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:27,406 INFO L85 PathProgramCache]: Analyzing trace with hash 534914696, now seen corresponding path program 1 times [2023-12-25 05:27:27,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:27,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309699507] [2023-12-25 05:27:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:27,406 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 05:27:27,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:27,407 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 05:27:27,409 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 05:27:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:27,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-25 05:27:27,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:28,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:27:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 05:27:28,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:28,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309699507] [2023-12-25 05:27:28,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309699507] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:27:28,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:27:28,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-25 05:27:28,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91411416] [2023-12-25 05:27:28,675 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:27:28,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:27:28,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:28,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:27:28,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:27:28,677 INFO L87 Difference]: Start difference. First operand 584 states and 917 transitions. Second operand has 18 states, 16 states have (on average 10.5) internal successors, (168), 14 states have internal predecessors, (168), 8 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (34), 12 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-25 05:27:36,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:36,101 INFO L93 Difference]: Finished difference Result 1740 states and 2821 transitions. [2023-12-25 05:27:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 05:27:36,101 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 10.5) internal successors, (168), 14 states have internal predecessors, (168), 8 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (34), 12 states have call predecessors, (34), 7 states have call successors, (34) Word has length 145 [2023-12-25 05:27:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:36,107 INFO L225 Difference]: With dead ends: 1740 [2023-12-25 05:27:36,107 INFO L226 Difference]: Without dead ends: 1228 [2023-12-25 05:27:36,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=694, Unknown=0, NotChecked=0, Total=870 [2023-12-25 05:27:36,114 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 5218 mSDsluCounter, 4700 mSDsCounter, 0 mSdLazyCounter, 10008 mSolverCounterSat, 1664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5302 SdHoareTripleChecker+Valid, 5547 SdHoareTripleChecker+Invalid, 11672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1664 IncrementalHoareTripleChecker+Valid, 10008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:36,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5302 Valid, 5547 Invalid, 11672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1664 Valid, 10008 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-12-25 05:27:36,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2023-12-25 05:27:36,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1207. [2023-12-25 05:27:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 902 states have (on average 1.6075388026607538) internal successors, (1450), 942 states have internal predecessors, (1450), 239 states have call successors, (239), 59 states have call predecessors, (239), 65 states have return successors, (261), 236 states have call predecessors, (261), 234 states have call successors, (261) [2023-12-25 05:27:36,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1950 transitions. [2023-12-25 05:27:36,187 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1950 transitions. Word has length 145 [2023-12-25 05:27:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:36,189 INFO L495 AbstractCegarLoop]: Abstraction has 1207 states and 1950 transitions. [2023-12-25 05:27:36,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 10.5) internal successors, (168), 14 states have internal predecessors, (168), 8 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (34), 12 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-25 05:27:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1950 transitions. [2023-12-25 05:27:36,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:27:36,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:36,194 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:36,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:36,405 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 05:27:36,405 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:36,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:36,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1530335091, now seen corresponding path program 1 times [2023-12-25 05:27:36,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:36,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577288652] [2023-12-25 05:27:36,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:36,406 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 05:27:36,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:36,407 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 05:27:36,408 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 05:27:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:36,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:27:36,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:36,844 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:36,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:36,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577288652] [2023-12-25 05:27:36,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577288652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:36,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:36,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:27:36,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961019637] [2023-12-25 05:27:36,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:36,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:27:36,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:36,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:27:36,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:27:36,846 INFO L87 Difference]: Start difference. First operand 1207 states and 1950 transitions. Second operand has 8 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:37,101 INFO L93 Difference]: Finished difference Result 1721 states and 2785 transitions. [2023-12-25 05:27:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:27:37,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 147 [2023-12-25 05:27:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:37,106 INFO L225 Difference]: With dead ends: 1721 [2023-12-25 05:27:37,106 INFO L226 Difference]: Without dead ends: 577 [2023-12-25 05:27:37,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:27:37,111 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 63 mSDsluCounter, 5006 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 5849 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:37,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 5849 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:27:37,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-12-25 05:27:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2023-12-25 05:27:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 441 states have (on average 1.582766439909297) internal successors, (698), 460 states have internal predecessors, (698), 103 states have call successors, (103), 33 states have call predecessors, (103), 32 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2023-12-25 05:27:37,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 903 transitions. [2023-12-25 05:27:37,141 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 903 transitions. Word has length 147 [2023-12-25 05:27:37,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:37,142 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 903 transitions. [2023-12-25 05:27:37,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-25 05:27:37,142 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 903 transitions. [2023-12-25 05:27:37,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-25 05:27:37,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:37,144 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:37,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:37,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:37,355 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:37,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:37,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2076427469, now seen corresponding path program 1 times [2023-12-25 05:27:37,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:37,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689545914] [2023-12-25 05:27:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:37,356 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 05:27:37,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:37,357 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:27:37,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 05:27:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:37,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 05:27:37,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:27:37,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:27:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 05:27:38,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:38,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689545914] [2023-12-25 05:27:38,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689545914] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:27:38,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:27:38,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-25 05:27:38,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838061479] [2023-12-25 05:27:38,570 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:27:38,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:27:38,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:38,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:27:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:27:38,572 INFO L87 Difference]: Start difference. First operand 577 states and 903 transitions. Second operand has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 12 states have internal predecessors, (172), 8 states have call successors, (34), 5 states have call predecessors, (34), 8 states have return successors, (34), 10 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-25 05:27:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:40,911 INFO L93 Difference]: Finished difference Result 1089 states and 1743 transitions. [2023-12-25 05:27:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:27:40,911 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 12 states have internal predecessors, (172), 8 states have call successors, (34), 5 states have call predecessors, (34), 8 states have return successors, (34), 10 states have call predecessors, (34), 7 states have call successors, (34) Word has length 154 [2023-12-25 05:27:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:40,914 INFO L225 Difference]: With dead ends: 1089 [2023-12-25 05:27:40,914 INFO L226 Difference]: Without dead ends: 582 [2023-12-25 05:27:40,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:27:40,916 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1940 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 3451 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 3451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:40,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 1801 Invalid, 4030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 3451 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 05:27:40,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-25 05:27:40,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 581. [2023-12-25 05:27:40,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 444 states have (on average 1.5788288288288288) internal successors, (701), 463 states have internal predecessors, (701), 103 states have call successors, (103), 33 states have call predecessors, (103), 33 states have return successors, (107), 97 states have call predecessors, (107), 98 states have call successors, (107) [2023-12-25 05:27:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 911 transitions. [2023-12-25 05:27:40,947 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 911 transitions. Word has length 154 [2023-12-25 05:27:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:40,947 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 911 transitions. [2023-12-25 05:27:40,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 12 states have internal predecessors, (172), 8 states have call successors, (34), 5 states have call predecessors, (34), 8 states have return successors, (34), 10 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-25 05:27:40,947 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 911 transitions. [2023-12-25 05:27:40,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-25 05:27:40,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:40,950 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:40,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-25 05:27:41,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:41,160 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:41,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:41,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1259064042, now seen corresponding path program 1 times [2023-12-25 05:27:41,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:41,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055974796] [2023-12-25 05:27:41,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:41,161 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 05:27:41,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:41,162 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:27:41,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-25 05:27:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:41,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:27:41,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:42,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:42,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:42,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055974796] [2023-12-25 05:27:42,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055974796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:42,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:42,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:27:42,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195891087] [2023-12-25 05:27:42,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:42,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:27:42,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:42,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:27:42,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:27:42,122 INFO L87 Difference]: Start difference. First operand 581 states and 911 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 6 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-25 05:27:46,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:46,034 INFO L93 Difference]: Finished difference Result 2204 states and 3590 transitions. [2023-12-25 05:27:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:27:46,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 6 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) Word has length 156 [2023-12-25 05:27:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:46,043 INFO L225 Difference]: With dead ends: 2204 [2023-12-25 05:27:46,043 INFO L226 Difference]: Without dead ends: 1693 [2023-12-25 05:27:46,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:27:46,045 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 2980 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 4788 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3159 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 5383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 4788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:46,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3159 Valid, 1875 Invalid, 5383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 4788 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-25 05:27:46,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2023-12-25 05:27:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1504. [2023-12-25 05:27:46,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1171 states have (on average 1.6310845431255336) internal successors, (1910), 1207 states have internal predecessors, (1910), 255 states have call successors, (255), 75 states have call predecessors, (255), 77 states have return successors, (274), 235 states have call predecessors, (274), 250 states have call successors, (274) [2023-12-25 05:27:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2439 transitions. [2023-12-25 05:27:46,140 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2439 transitions. Word has length 156 [2023-12-25 05:27:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:46,140 INFO L495 AbstractCegarLoop]: Abstraction has 1504 states and 2439 transitions. [2023-12-25 05:27:46,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 6 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-25 05:27:46,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2439 transitions. [2023-12-25 05:27:46,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-25 05:27:46,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:46,143 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:46,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:46,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:46,356 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:46,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:46,357 INFO L85 PathProgramCache]: Analyzing trace with hash -146570875, now seen corresponding path program 1 times [2023-12-25 05:27:46,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:46,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355110148] [2023-12-25 05:27:46,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:46,357 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 05:27:46,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:46,358 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:27:46,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-25 05:27:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:46,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:27:46,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:27:46,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:27:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:27:47,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:47,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355110148] [2023-12-25 05:27:47,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355110148] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:27:47,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:27:47,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-25 05:27:47,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366760152] [2023-12-25 05:27:47,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:27:47,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:27:47,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:47,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:27:47,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:27:47,197 INFO L87 Difference]: Start difference. First operand 1504 states and 2439 transitions. Second operand has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 6 states have call successors, (28), 5 states have call predecessors, (28), 6 states have return successors, (27), 7 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-25 05:27:51,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:51,306 INFO L93 Difference]: Finished difference Result 5807 states and 9612 transitions. [2023-12-25 05:27:51,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 05:27:51,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 6 states have call successors, (28), 5 states have call predecessors, (28), 6 states have return successors, (27), 7 states have call predecessors, (27), 5 states have call successors, (27) Word has length 155 [2023-12-25 05:27:51,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:51,334 INFO L225 Difference]: With dead ends: 5807 [2023-12-25 05:27:51,334 INFO L226 Difference]: Without dead ends: 4373 [2023-12-25 05:27:51,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-12-25 05:27:51,344 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 5023 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 4842 mSolverCounterSat, 1504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 6346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1504 IncrementalHoareTripleChecker+Valid, 4842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:51,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 2057 Invalid, 6346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1504 Valid, 4842 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-25 05:27:51,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2023-12-25 05:27:51,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4249. [2023-12-25 05:27:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4249 states, 3288 states have (on average 1.6201338199513382) internal successors, (5327), 3382 states have internal predecessors, (5327), 739 states have call successors, (739), 218 states have call predecessors, (739), 221 states have return successors, (853), 684 states have call predecessors, (853), 734 states have call successors, (853) [2023-12-25 05:27:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4249 states to 4249 states and 6919 transitions. [2023-12-25 05:27:51,681 INFO L78 Accepts]: Start accepts. Automaton has 4249 states and 6919 transitions. Word has length 155 [2023-12-25 05:27:51,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:51,681 INFO L495 AbstractCegarLoop]: Abstraction has 4249 states and 6919 transitions. [2023-12-25 05:27:51,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 6 states have call successors, (28), 5 states have call predecessors, (28), 6 states have return successors, (27), 7 states have call predecessors, (27), 5 states have call successors, (27) [2023-12-25 05:27:51,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4249 states and 6919 transitions. [2023-12-25 05:27:51,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-25 05:27:51,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:51,684 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:51,699 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 (33)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:51,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:51,897 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:51,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:51,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1694185770, now seen corresponding path program 1 times [2023-12-25 05:27:51,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:51,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811285172] [2023-12-25 05:27:51,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:51,898 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 05:27:51,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:51,900 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:27:51,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-25 05:27:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:52,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:27:52,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-25 05:27:52,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:52,546 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:52,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811285172] [2023-12-25 05:27:52,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811285172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:52,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:52,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:27:52,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526319380] [2023-12-25 05:27:52,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:52,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:27:52,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:52,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:27:52,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:27:52,548 INFO L87 Difference]: Start difference. First operand 4249 states and 6919 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-25 05:27:57,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:27:57,598 INFO L93 Difference]: Finished difference Result 11988 states and 19875 transitions. [2023-12-25 05:27:57,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:27:57,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) Word has length 161 [2023-12-25 05:27:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:27:57,651 INFO L225 Difference]: With dead ends: 11988 [2023-12-25 05:27:57,652 INFO L226 Difference]: Without dead ends: 7809 [2023-12-25 05:27:57,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:27:57,669 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 3110 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 6836 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3227 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 7587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 6836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:27:57,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3227 Valid, 2353 Invalid, 7587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 6836 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-25 05:27:57,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7809 states. [2023-12-25 05:27:58,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7809 to 7597. [2023-12-25 05:27:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7597 states, 5814 states have (on average 1.610423116615067) internal successors, (9363), 6001 states have internal predecessors, (9363), 1390 states have call successors, (1390), 362 states have call predecessors, (1390), 392 states have return successors, (1685), 1319 states have call predecessors, (1685), 1385 states have call successors, (1685) [2023-12-25 05:27:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7597 states to 7597 states and 12438 transitions. [2023-12-25 05:27:58,364 INFO L78 Accepts]: Start accepts. Automaton has 7597 states and 12438 transitions. Word has length 161 [2023-12-25 05:27:58,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:27:58,364 INFO L495 AbstractCegarLoop]: Abstraction has 7597 states and 12438 transitions. [2023-12-25 05:27:58,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-25 05:27:58,365 INFO L276 IsEmpty]: Start isEmpty. Operand 7597 states and 12438 transitions. [2023-12-25 05:27:58,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-25 05:27:58,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:27:58,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:27:58,383 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 (34)] Forceful destruction successful, exit code 0 [2023-12-25 05:27:58,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:27:58,580 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:27:58,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:27:58,581 INFO L85 PathProgramCache]: Analyzing trace with hash -639206868, now seen corresponding path program 1 times [2023-12-25 05:27:58,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:27:58,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359490630] [2023-12-25 05:27:58,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:27:58,581 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 05:27:58,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:27:58,582 INFO L229 MonitoredProcess]: Starting monitored process 35 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 05:27:58,583 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 (35)] Waiting until timeout for monitored process [2023-12-25 05:27:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:27:58,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-25 05:27:58,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:27:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:27:59,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:27:59,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:27:59,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359490630] [2023-12-25 05:27:59,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359490630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:27:59,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:27:59,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-25 05:27:59,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789709165] [2023-12-25 05:27:59,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:27:59,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:27:59,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:27:59,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:27:59,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:27:59,171 INFO L87 Difference]: Start difference. First operand 7597 states and 12438 transitions. Second operand has 11 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 8 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-25 05:28:02,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:28:02,276 INFO L93 Difference]: Finished difference Result 13403 states and 21934 transitions. [2023-12-25 05:28:02,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:28:02,277 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 8 states have call predecessors, (19), 5 states have call successors, (19) Word has length 161 [2023-12-25 05:28:02,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:28:02,326 INFO L225 Difference]: With dead ends: 13403 [2023-12-25 05:28:02,326 INFO L226 Difference]: Without dead ends: 7567 [2023-12-25 05:28:02,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:28:02,350 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1306 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 4545 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 4925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 4545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:28:02,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 2360 Invalid, 4925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 4545 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:28:02,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7567 states. [2023-12-25 05:28:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7567 to 7567. [2023-12-25 05:28:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7567 states, 5799 states have (on average 1.6094154164511123) internal successors, (9333), 5986 states have internal predecessors, (9333), 1375 states have call successors, (1375), 362 states have call predecessors, (1375), 392 states have return successors, (1670), 1304 states have call predecessors, (1670), 1370 states have call successors, (1670) [2023-12-25 05:28:02,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7567 states to 7567 states and 12378 transitions. [2023-12-25 05:28:02,981 INFO L78 Accepts]: Start accepts. Automaton has 7567 states and 12378 transitions. Word has length 161 [2023-12-25 05:28:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:28:02,982 INFO L495 AbstractCegarLoop]: Abstraction has 7567 states and 12378 transitions. [2023-12-25 05:28:02,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 6 states have call successors, (19), 4 states have call predecessors, (19), 6 states have return successors, (19), 8 states have call predecessors, (19), 5 states have call successors, (19) [2023-12-25 05:28:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7567 states and 12378 transitions. [2023-12-25 05:28:02,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-25 05:28:02,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:28:02,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:28:02,997 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 (35)] Forceful destruction successful, exit code 0 [2023-12-25 05:28:03,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:28:03,197 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:28:03,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:28:03,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1333223204, now seen corresponding path program 1 times [2023-12-25 05:28:03,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:28:03,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282627215] [2023-12-25 05:28:03,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:28:03,198 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 05:28:03,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:28:03,199 INFO L229 MonitoredProcess]: Starting monitored process 36 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 05:28:03,200 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 (36)] Waiting until timeout for monitored process [2023-12-25 05:28:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:28:03,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:28:03,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:28:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 05:28:03,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:28:03,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:28:03,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282627215] [2023-12-25 05:28:03,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282627215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:28:03,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:28:03,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:28:03,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661607383] [2023-12-25 05:28:03,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:28:03,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:28:03,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:28:03,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:28:03,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:28:03,811 INFO L87 Difference]: Start difference. First operand 7567 states and 12378 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-25 05:28:07,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:28:07,517 INFO L93 Difference]: Finished difference Result 22905 states and 38391 transitions. [2023-12-25 05:28:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:28:07,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 169 [2023-12-25 05:28:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:28:07,635 INFO L225 Difference]: With dead ends: 22905 [2023-12-25 05:28:07,635 INFO L226 Difference]: Without dead ends: 15411 [2023-12-25 05:28:07,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 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 05:28:07,673 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 2046 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 3396 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 3878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 3396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:28:07,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 1439 Invalid, 3878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 3396 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-25 05:28:07,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15411 states. [2023-12-25 05:28:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15411 to 15142. [2023-12-25 05:28:08,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15142 states, 11451 states have (on average 1.6037900620033185) internal successors, (18365), 11869 states have internal predecessors, (18365), 2944 states have call successors, (2944), 650 states have call predecessors, (2944), 746 states have return successors, (3851), 2835 states have call predecessors, (3851), 2939 states have call successors, (3851) [2023-12-25 05:28:09,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15142 states to 15142 states and 25160 transitions. [2023-12-25 05:28:09,072 INFO L78 Accepts]: Start accepts. Automaton has 15142 states and 25160 transitions. Word has length 169 [2023-12-25 05:28:09,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:28:09,072 INFO L495 AbstractCegarLoop]: Abstraction has 15142 states and 25160 transitions. [2023-12-25 05:28:09,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-25 05:28:09,073 INFO L276 IsEmpty]: Start isEmpty. Operand 15142 states and 25160 transitions. [2023-12-25 05:28:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-25 05:28:09,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:28:09,076 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:28:09,091 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 (36)] Forceful destruction successful, exit code 0 [2023-12-25 05:28:09,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:28:09,290 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:28:09,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:28:09,290 INFO L85 PathProgramCache]: Analyzing trace with hash -839058898, now seen corresponding path program 1 times [2023-12-25 05:28:09,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:28:09,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143589089] [2023-12-25 05:28:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:28:09,291 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 05:28:09,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:28:09,292 INFO L229 MonitoredProcess]: Starting monitored process 37 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 05:28:09,324 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 (37)] Waiting until timeout for monitored process [2023-12-25 05:28:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:28:09,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:28:09,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:28:09,997 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 05:28:09,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:28:09,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:28:09,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143589089] [2023-12-25 05:28:09,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143589089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:28:09,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:28:09,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:28:09,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997171475] [2023-12-25 05:28:09,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:28:09,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:28:09,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:28:09,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:28:09,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:28:09,999 INFO L87 Difference]: Start difference. First operand 15142 states and 25160 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-25 05:28:15,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:28:15,335 INFO L93 Difference]: Finished difference Result 48547 states and 83378 transitions. [2023-12-25 05:28:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:28:15,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 170 [2023-12-25 05:28:15,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:28:15,597 INFO L225 Difference]: With dead ends: 48547 [2023-12-25 05:28:15,597 INFO L226 Difference]: Without dead ends: 33480 [2023-12-25 05:28:15,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 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 05:28:15,673 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 2569 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 2716 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 2716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:28:15,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2686 Valid, 1285 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 2716 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:28:15,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33480 states. [2023-12-25 05:28:18,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33480 to 33031. [2023-12-25 05:28:18,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33031 states, 24630 states have (on average 1.6000812017864392) internal successors, (39410), 25636 states have internal predecessors, (39410), 6877 states have call successors, (6877), 1226 states have call predecessors, (6877), 1523 states have return successors, (10023), 6710 states have call predecessors, (10023), 6872 states have call successors, (10023) [2023-12-25 05:28:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33031 states to 33031 states and 56310 transitions. [2023-12-25 05:28:18,975 INFO L78 Accepts]: Start accepts. Automaton has 33031 states and 56310 transitions. Word has length 170 [2023-12-25 05:28:18,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:28:18,976 INFO L495 AbstractCegarLoop]: Abstraction has 33031 states and 56310 transitions. [2023-12-25 05:28:18,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-25 05:28:18,977 INFO L276 IsEmpty]: Start isEmpty. Operand 33031 states and 56310 transitions. [2023-12-25 05:28:18,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-25 05:28:18,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:28:18,981 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:28:18,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-25 05:28:19,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:28:19,197 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:28:19,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:28:19,197 INFO L85 PathProgramCache]: Analyzing trace with hash -648350495, now seen corresponding path program 1 times [2023-12-25 05:28:19,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:28:19,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172285209] [2023-12-25 05:28:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:28:19,198 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 05:28:19,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:28:19,199 INFO L229 MonitoredProcess]: Starting monitored process 38 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 05:28:19,231 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 (38)] Waiting until timeout for monitored process [2023-12-25 05:28:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:28:19,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:28:19,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:28:19,906 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 05:28:19,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:28:19,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:28:19,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172285209] [2023-12-25 05:28:19,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172285209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:28:19,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:28:19,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:28:19,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003521119] [2023-12-25 05:28:19,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:28:19,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:28:19,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:28:19,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:28:19,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:28:19,909 INFO L87 Difference]: Start difference. First operand 33031 states and 56310 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-25 05:28:29,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:28:29,802 INFO L93 Difference]: Finished difference Result 110781 states and 197886 transitions. [2023-12-25 05:28:29,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:28:29,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 171 [2023-12-25 05:28:29,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:28:30,412 INFO L225 Difference]: With dead ends: 110781 [2023-12-25 05:28:30,412 INFO L226 Difference]: Without dead ends: 77829 [2023-12-25 05:28:30,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 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 05:28:30,561 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 2060 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 3414 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 3898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 3414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:28:30,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 1481 Invalid, 3898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 3414 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 05:28:30,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77829 states. [2023-12-25 05:28:37,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77829 to 76996. [2023-12-25 05:28:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76996 states, 56649 states have (on average 1.5980335045631873) internal successors, (90527), 59191 states have internal predecessors, (90527), 17062 states have call successors, (17062), 2378 states have call predecessors, (17062), 3284 states have return successors, (28677), 16833 states have call predecessors, (28677), 17057 states have call successors, (28677) [2023-12-25 05:28:38,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76996 states to 76996 states and 136266 transitions. [2023-12-25 05:28:38,964 INFO L78 Accepts]: Start accepts. Automaton has 76996 states and 136266 transitions. Word has length 171 [2023-12-25 05:28:38,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:28:38,966 INFO L495 AbstractCegarLoop]: Abstraction has 76996 states and 136266 transitions. [2023-12-25 05:28:38,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-25 05:28:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 76996 states and 136266 transitions. [2023-12-25 05:28:38,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-25 05:28:38,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:28:38,970 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:28:38,986 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 (38)] Forceful destruction successful, exit code 0 [2023-12-25 05:28:39,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:28:39,184 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:28:39,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:28:39,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1274840493, now seen corresponding path program 1 times [2023-12-25 05:28:39,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:28:39,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900504773] [2023-12-25 05:28:39,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:28:39,185 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 05:28:39,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:28:39,186 INFO L229 MonitoredProcess]: Starting monitored process 39 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 05:28:39,187 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 (39)] Waiting until timeout for monitored process [2023-12-25 05:28:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:28:39,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:28:39,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:28:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-25 05:28:39,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:28:39,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:28:39,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900504773] [2023-12-25 05:28:39,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900504773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:28:39,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:28:39,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:28:39,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674688171] [2023-12-25 05:28:39,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:28:39,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:28:39,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:28:39,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:28:39,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:28:39,719 INFO L87 Difference]: Start difference. First operand 76996 states and 136266 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-25 05:29:05,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:05,218 INFO L93 Difference]: Finished difference Result 268435 states and 507868 transitions. [2023-12-25 05:29:05,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:29:05,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 6 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 172 [2023-12-25 05:29:05,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted.