/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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:20:45,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:20:45,142 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:20:45,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:20:45,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:20:45,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:20:45,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:20:45,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:20:45,177 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:20:45,181 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:20:45,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:20:45,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:20:45,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:20:45,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:20:45,184 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:20:45,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:20:45,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:20:45,184 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:20:45,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:20:45,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:20:45,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:20:45,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:20:45,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:20:45,186 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:20:45,187 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:20:45,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:20:45,187 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:20:45,187 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:20:45,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:20:45,187 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:20:45,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:20:45,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:20:45,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:20:45,188 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:20:45,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:20:45,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:20:45,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:20:45,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:20:45,189 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:20:45,189 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:20:45,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:20:45,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:20:45,190 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:20:45,190 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:20:45,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:20:45,190 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:20:45,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:20:45,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:20:45,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:20:45,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:20:45,406 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:20:45,407 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:20:45,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product25.cil.c [2023-12-16 17:20:46,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:20:46,779 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:20:46,779 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product25.cil.c [2023-12-16 17:20:46,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abfa2a9ce/6568d0850c8440c99f2915a1c75dedcb/FLAGb05876f04 [2023-12-16 17:20:47,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abfa2a9ce/6568d0850c8440c99f2915a1c75dedcb [2023-12-16 17:20:47,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:20:47,070 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:20:47,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:20:47,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:20:47,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:20:47,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6567cd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47, skipping insertion in model container [2023-12-16 17:20:47,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,153 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:20:47,400 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_product25.cil.c[13407,13420] [2023-12-16 17:20:47,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:20:47,611 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:20:47,625 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:20:47,653 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_product25.cil.c[13407,13420] [2023-12-16 17:20:47,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:20:47,730 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:20:47,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-16 17:20:47,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [86] [2023-12-16 17:20:47,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [452] [2023-12-16 17:20:47,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [553] [2023-12-16 17:20:47,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] [2023-12-16 17:20:47,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [916] [2023-12-16 17:20:47,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1099] [2023-12-16 17:20:47,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1770] [2023-12-16 17:20:47,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1783] [2023-12-16 17:20:47,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1903] [2023-12-16 17:20:47,756 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_product25.cil.c[13407,13420] [2023-12-16 17:20:47,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:20:47,834 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:20:47,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47 WrapperNode [2023-12-16 17:20:47,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:20:47,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:20:47,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:20:47,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:20:47,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,918 INFO L138 Inliner]: procedures = 93, calls = 335, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 791 [2023-12-16 17:20:47,919 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:20:47,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:20:47,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:20:47,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:20:47,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,967 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]. [2023-12-16 17:20:47,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:47,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:48,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:48,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:20:48,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:20:48,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:20:48,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:20:48,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (1/1) ... [2023-12-16 17:20:48,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:20:48,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:20:48,064 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) [2023-12-16 17:20:48,085 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 [2023-12-16 17:20:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-12-16 17:20:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-12-16 17:20:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:20:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 17:20:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 17:20:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 17:20:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 17:20:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 17:20:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 17:20:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 17:20:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 17:20:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 17:20:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 17:20:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:20:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:20:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:20:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:20:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-16 17:20:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-16 17:20:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 17:20:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 17:20:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 17:20:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 17:20:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 17:20:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 17:20:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 17:20:48,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 17:20:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:20:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:20:48,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 17:20:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 17:20:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 17:20:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-16 17:20:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 17:20:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 17:20:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 17:20:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 17:20:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 17:20:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 17:20:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 17:20:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 17:20:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 17:20:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 17:20:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 17:20:48,100 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 17:20:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 17:20:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 17:20:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 17:20:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 17:20:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:20:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:20:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 17:20:48,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 17:20:48,270 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:20:48,272 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:20:49,196 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:20:49,263 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:20:49,263 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:20:49,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:20:49 BoogieIcfgContainer [2023-12-16 17:20:49,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:20:49,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:20:49,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:20:49,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:20:49,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:20:47" (1/3) ... [2023-12-16 17:20:49,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d45851a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:20:49, skipping insertion in model container [2023-12-16 17:20:49,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:20:47" (2/3) ... [2023-12-16 17:20:49,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d45851a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:20:49, skipping insertion in model container [2023-12-16 17:20:49,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:20:49" (3/3) ... [2023-12-16 17:20:49,269 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product25.cil.c [2023-12-16 17:20:49,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:20:49,282 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:20:49,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:20:49,324 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;@20d578db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:20:49,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:20:49,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 527 states, 412 states have (on average 1.7427184466019416) internal successors, (718), 433 states have internal predecessors, (718), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-16 17:20:49,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 17:20:49,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:49,346 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:49,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:49,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:49,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1783266936, now seen corresponding path program 1 times [2023-12-16 17:20:49,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:49,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927014977] [2023-12-16 17:20:49,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:49,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:20:49,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:49,362 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) [2023-12-16 17:20:49,371 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 [2023-12-16 17:20:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:49,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:20:49,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:20:49,800 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:49,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:49,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927014977] [2023-12-16 17:20:49,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927014977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:49,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:49,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:20:49,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325034804] [2023-12-16 17:20:49,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:49,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:20:49,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:49,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:20:49,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:20:49,827 INFO L87 Difference]: Start difference. First operand has 527 states, 412 states have (on average 1.7427184466019416) internal successors, (718), 433 states have internal predecessors, (718), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 17:20:49,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:49,899 INFO L93 Difference]: Finished difference Result 545 states and 927 transitions. [2023-12-16 17:20:49,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:20:49,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 87 [2023-12-16 17:20:49,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:49,914 INFO L225 Difference]: With dead ends: 545 [2023-12-16 17:20:49,914 INFO L226 Difference]: Without dead ends: 523 [2023-12-16 17:20:49,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:20:49,920 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:49,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 877 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:20:49,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-16 17:20:49,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2023-12-16 17:20:49,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 410 states have (on average 1.7341463414634146) internal successors, (711), 429 states have internal predecessors, (711), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:49,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 888 transitions. [2023-12-16 17:20:49,995 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 888 transitions. Word has length 87 [2023-12-16 17:20:49,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:49,996 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 888 transitions. [2023-12-16 17:20:49,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 17:20:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 888 transitions. [2023-12-16 17:20:50,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 17:20:50,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:50,001 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:50,014 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 [2023-12-16 17:20:50,209 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 [2023-12-16 17:20:50,210 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:50,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:50,211 INFO L85 PathProgramCache]: Analyzing trace with hash 37434489, now seen corresponding path program 1 times [2023-12-16 17:20:50,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:50,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437337563] [2023-12-16 17:20:50,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:50,212 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 [2023-12-16 17:20:50,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:50,217 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) [2023-12-16 17:20:50,247 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 [2023-12-16 17:20:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:50,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:50,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:20:50,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:50,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:50,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437337563] [2023-12-16 17:20:50,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437337563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:50,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:50,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:50,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058748475] [2023-12-16 17:20:50,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:50,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:50,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:50,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:50,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:50,673 INFO L87 Difference]: Start difference. First operand 523 states and 888 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:50,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:50,838 INFO L93 Difference]: Finished difference Result 1043 states and 1774 transitions. [2023-12-16 17:20:50,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:50,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2023-12-16 17:20:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:50,843 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:20:50,843 INFO L226 Difference]: Without dead ends: 523 [2023-12-16 17:20:50,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:50,848 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 14 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:50,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2576 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:50,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-16 17:20:50,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2023-12-16 17:20:50,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 410 states have (on average 1.7317073170731707) internal successors, (710), 429 states have internal predecessors, (710), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:50,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 887 transitions. [2023-12-16 17:20:50,873 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 887 transitions. Word has length 88 [2023-12-16 17:20:50,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:50,874 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 887 transitions. [2023-12-16 17:20:50,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 887 transitions. [2023-12-16 17:20:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 17:20:50,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:50,877 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:50,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:51,092 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 [2023-12-16 17:20:51,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:51,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:51,093 INFO L85 PathProgramCache]: Analyzing trace with hash -847137043, now seen corresponding path program 1 times [2023-12-16 17:20:51,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:51,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855225840] [2023-12-16 17:20:51,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:51,094 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 [2023-12-16 17:20:51,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:51,118 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) [2023-12-16 17:20:51,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:20:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:51,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:51,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:51,509 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:20:51,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:51,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:51,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855225840] [2023-12-16 17:20:51,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855225840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:51,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:51,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:51,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786257193] [2023-12-16 17:20:51,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:51,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:51,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:51,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:51,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:51,512 INFO L87 Difference]: Start difference. First operand 523 states and 887 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:51,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:51,649 INFO L93 Difference]: Finished difference Result 1043 states and 1772 transitions. [2023-12-16 17:20:51,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:51,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2023-12-16 17:20:51,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:51,656 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:20:51,656 INFO L226 Difference]: Without dead ends: 523 [2023-12-16 17:20:51,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:51,658 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 12 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:51,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2576 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:51,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-16 17:20:51,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2023-12-16 17:20:51,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 410 states have (on average 1.7292682926829268) internal successors, (709), 429 states have internal predecessors, (709), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:51,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 886 transitions. [2023-12-16 17:20:51,685 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 886 transitions. Word has length 90 [2023-12-16 17:20:51,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:51,685 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 886 transitions. [2023-12-16 17:20:51,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:51,685 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 886 transitions. [2023-12-16 17:20:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:20:51,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:51,687 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:51,706 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 [2023-12-16 17:20:51,906 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 [2023-12-16 17:20:51,906 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:51,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:51,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1771181233, now seen corresponding path program 1 times [2023-12-16 17:20:51,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:51,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698680900] [2023-12-16 17:20:51,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:51,909 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:20:51,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:51,910 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) [2023-12-16 17:20:51,914 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 [2023-12-16 17:20:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:52,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:52,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:52,391 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:20:52,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:52,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:52,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698680900] [2023-12-16 17:20:52,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698680900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:52,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:52,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:52,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876490440] [2023-12-16 17:20:52,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:52,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:52,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:52,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:52,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:52,393 INFO L87 Difference]: Start difference. First operand 523 states and 886 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:52,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:52,495 INFO L93 Difference]: Finished difference Result 1047 states and 1775 transitions. [2023-12-16 17:20:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:20:52,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2023-12-16 17:20:52,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:52,498 INFO L225 Difference]: With dead ends: 1047 [2023-12-16 17:20:52,498 INFO L226 Difference]: Without dead ends: 529 [2023-12-16 17:20:52,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:52,501 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 13 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:52,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2576 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-16 17:20:52,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-16 17:20:52,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 415 states have (on average 1.7204819277108434) internal successors, (714), 434 states have internal predecessors, (714), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:52,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 891 transitions. [2023-12-16 17:20:52,517 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 891 transitions. Word has length 92 [2023-12-16 17:20:52,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:52,517 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 891 transitions. [2023-12-16 17:20:52,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:52,518 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 891 transitions. [2023-12-16 17:20:52,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:20:52,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:52,520 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:52,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:52,729 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 [2023-12-16 17:20:52,730 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:52,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:52,730 INFO L85 PathProgramCache]: Analyzing trace with hash -75189656, now seen corresponding path program 1 times [2023-12-16 17:20:52,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:52,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424622425] [2023-12-16 17:20:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:52,731 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 [2023-12-16 17:20:52,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:52,739 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) [2023-12-16 17:20:52,742 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 [2023-12-16 17:20:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:53,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:53,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:20:53,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:53,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424622425] [2023-12-16 17:20:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424622425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:53,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:53,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:53,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140138909] [2023-12-16 17:20:53,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:53,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:53,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:53,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:53,066 INFO L87 Difference]: Start difference. First operand 529 states and 891 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:53,173 INFO L93 Difference]: Finished difference Result 1046 states and 1766 transitions. [2023-12-16 17:20:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2023-12-16 17:20:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:53,176 INFO L225 Difference]: With dead ends: 1046 [2023-12-16 17:20:53,176 INFO L226 Difference]: Without dead ends: 529 [2023-12-16 17:20:53,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:53,181 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 8 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:53,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2577 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:53,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-16 17:20:53,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-16 17:20:53,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 415 states have (on average 1.7180722891566265) internal successors, (713), 434 states have internal predecessors, (713), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 890 transitions. [2023-12-16 17:20:53,201 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 890 transitions. Word has length 93 [2023-12-16 17:20:53,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:53,202 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 890 transitions. [2023-12-16 17:20:53,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:53,202 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 890 transitions. [2023-12-16 17:20:53,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:20:53,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:53,204 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:53,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 17:20:53,413 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 [2023-12-16 17:20:53,415 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:53,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:53,416 INFO L85 PathProgramCache]: Analyzing trace with hash -941406963, now seen corresponding path program 1 times [2023-12-16 17:20:53,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:53,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063118293] [2023-12-16 17:20:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:53,417 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 [2023-12-16 17:20:53,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:53,423 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) [2023-12-16 17:20:53,424 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 [2023-12-16 17:20:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:53,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:53,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:53,763 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:20:53,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:53,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:53,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063118293] [2023-12-16 17:20:53,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063118293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:53,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:53,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:53,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207366778] [2023-12-16 17:20:53,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:53,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:53,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:53,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:53,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:53,765 INFO L87 Difference]: Start difference. First operand 529 states and 890 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:53,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:53,834 INFO L93 Difference]: Finished difference Result 1046 states and 1765 transitions. [2023-12-16 17:20:53,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:53,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2023-12-16 17:20:53,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:53,838 INFO L225 Difference]: With dead ends: 1046 [2023-12-16 17:20:53,838 INFO L226 Difference]: Without dead ends: 529 [2023-12-16 17:20:53,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:53,840 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 6 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:53,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2577 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:20:53,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-16 17:20:53,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-16 17:20:53,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 415 states have (on average 1.7156626506024097) internal successors, (712), 434 states have internal predecessors, (712), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:53,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 889 transitions. [2023-12-16 17:20:53,853 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 889 transitions. Word has length 94 [2023-12-16 17:20:53,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:53,853 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 889 transitions. [2023-12-16 17:20:53,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:53,853 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 889 transitions. [2023-12-16 17:20:53,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 17:20:53,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:53,855 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:53,880 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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:54,081 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 [2023-12-16 17:20:54,081 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:54,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:54,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1487634300, now seen corresponding path program 1 times [2023-12-16 17:20:54,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:54,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009945828] [2023-12-16 17:20:54,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:54,082 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 [2023-12-16 17:20:54,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:54,083 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) [2023-12-16 17:20:54,114 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 [2023-12-16 17:20:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:54,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:20:54,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:54,484 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:20:54,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:54,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:54,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009945828] [2023-12-16 17:20:54,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009945828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:54,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:54,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:20:54,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685978121] [2023-12-16 17:20:54,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:54,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:20:54,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:54,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:20:54,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:20:54,486 INFO L87 Difference]: Start difference. First operand 529 states and 889 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:20:54,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:54,662 INFO L93 Difference]: Finished difference Result 1062 states and 1792 transitions. [2023-12-16 17:20:54,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:20:54,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2023-12-16 17:20:54,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:54,666 INFO L225 Difference]: With dead ends: 1062 [2023-12-16 17:20:54,666 INFO L226 Difference]: Without dead ends: 549 [2023-12-16 17:20:54,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:20:54,668 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 146 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 5055 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:54,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 5055 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:54,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-12-16 17:20:54,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 547. [2023-12-16 17:20:54,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 430 states have (on average 1.713953488372093) internal successors, (737), 451 states have internal predecessors, (737), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2023-12-16 17:20:54,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 919 transitions. [2023-12-16 17:20:54,684 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 919 transitions. Word has length 95 [2023-12-16 17:20:54,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:54,684 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 919 transitions. [2023-12-16 17:20:54,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:20:54,684 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 919 transitions. [2023-12-16 17:20:54,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 17:20:54,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:54,686 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:54,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:54,895 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 [2023-12-16 17:20:54,895 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:54,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:54,896 INFO L85 PathProgramCache]: Analyzing trace with hash -279716125, now seen corresponding path program 1 times [2023-12-16 17:20:54,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:54,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803963633] [2023-12-16 17:20:54,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:54,896 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 [2023-12-16 17:20:54,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:54,898 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) [2023-12-16 17:20:54,900 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 [2023-12-16 17:20:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:55,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:55,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:55,222 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:20:55,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:55,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:55,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803963633] [2023-12-16 17:20:55,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803963633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:55,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:55,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:55,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727179108] [2023-12-16 17:20:55,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:55,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:55,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:55,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:55,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:55,224 INFO L87 Difference]: Start difference. First operand 547 states and 919 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:55,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:55,298 INFO L93 Difference]: Finished difference Result 1074 states and 1813 transitions. [2023-12-16 17:20:55,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:20:55,299 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 95 [2023-12-16 17:20:55,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:55,301 INFO L225 Difference]: With dead ends: 1074 [2023-12-16 17:20:55,301 INFO L226 Difference]: Without dead ends: 543 [2023-12-16 17:20:55,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:55,304 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 8 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:55,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2576 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:55,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-16 17:20:55,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2023-12-16 17:20:55,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 428 states have (on average 1.7149532710280373) internal successors, (734), 448 states have internal predecessors, (734), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (87), 84 states have call predecessors, (87), 86 states have call successors, (87) [2023-12-16 17:20:55,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 912 transitions. [2023-12-16 17:20:55,315 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 912 transitions. Word has length 95 [2023-12-16 17:20:55,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:55,316 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 912 transitions. [2023-12-16 17:20:55,316 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:55,316 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 912 transitions. [2023-12-16 17:20:55,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:20:55,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:55,317 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:55,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 17:20:55,529 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 [2023-12-16 17:20:55,529 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:55,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:55,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1353157145, now seen corresponding path program 1 times [2023-12-16 17:20:55,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:55,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436603853] [2023-12-16 17:20:55,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:55,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:20:55,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:55,532 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) [2023-12-16 17:20:55,533 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 [2023-12-16 17:20:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:55,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:55,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:55,887 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:20:55,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:55,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:55,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436603853] [2023-12-16 17:20:55,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436603853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:55,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:55,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:55,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471150614] [2023-12-16 17:20:55,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:55,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:55,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:55,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:55,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:55,889 INFO L87 Difference]: Start difference. First operand 543 states and 912 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:56,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:56,082 INFO L93 Difference]: Finished difference Result 1098 states and 1856 transitions. [2023-12-16 17:20:56,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:56,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2023-12-16 17:20:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:56,094 INFO L225 Difference]: With dead ends: 1098 [2023-12-16 17:20:56,094 INFO L226 Difference]: Without dead ends: 543 [2023-12-16 17:20:56,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:56,098 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 132 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:56,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 2386 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:20:56,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-16 17:20:56,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2023-12-16 17:20:56,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 428 states have (on average 1.7032710280373833) internal successors, (729), 448 states have internal predecessors, (729), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (87), 84 states have call predecessors, (87), 86 states have call successors, (87) [2023-12-16 17:20:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 907 transitions. [2023-12-16 17:20:56,113 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 907 transitions. Word has length 96 [2023-12-16 17:20:56,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:56,113 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 907 transitions. [2023-12-16 17:20:56,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:56,113 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 907 transitions. [2023-12-16 17:20:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 17:20:56,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:56,114 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:56,128 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 [2023-12-16 17:20:56,325 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 [2023-12-16 17:20:56,325 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:56,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:56,325 INFO L85 PathProgramCache]: Analyzing trace with hash 29350949, now seen corresponding path program 1 times [2023-12-16 17:20:56,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:56,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88887300] [2023-12-16 17:20:56,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:56,326 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 [2023-12-16 17:20:56,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:56,337 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) [2023-12-16 17:20:56,338 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 [2023-12-16 17:20:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:56,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:56,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:20:56,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:56,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:56,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88887300] [2023-12-16 17:20:56,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88887300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:56,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:56,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:56,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346298937] [2023-12-16 17:20:56,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:56,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:56,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:56,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:56,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:56,686 INFO L87 Difference]: Start difference. First operand 543 states and 907 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:56,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:56,885 INFO L93 Difference]: Finished difference Result 1098 states and 1846 transitions. [2023-12-16 17:20:56,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:56,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2023-12-16 17:20:56,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:56,889 INFO L225 Difference]: With dead ends: 1098 [2023-12-16 17:20:56,889 INFO L226 Difference]: Without dead ends: 543 [2023-12-16 17:20:56,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:56,891 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 126 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:56,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2386 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:20:56,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-16 17:20:56,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2023-12-16 17:20:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 428 states have (on average 1.691588785046729) internal successors, (724), 448 states have internal predecessors, (724), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (87), 84 states have call predecessors, (87), 86 states have call successors, (87) [2023-12-16 17:20:56,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 902 transitions. [2023-12-16 17:20:56,913 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 902 transitions. Word has length 98 [2023-12-16 17:20:56,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:56,913 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 902 transitions. [2023-12-16 17:20:56,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:56,913 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 902 transitions. [2023-12-16 17:20:56,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 17:20:56,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:56,914 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:56,923 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 [2023-12-16 17:20:57,123 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 [2023-12-16 17:20:57,123 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:57,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:57,125 INFO L85 PathProgramCache]: Analyzing trace with hash -942830799, now seen corresponding path program 1 times [2023-12-16 17:20:57,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:57,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961102383] [2023-12-16 17:20:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:57,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:20:57,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:57,127 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) [2023-12-16 17:20:57,160 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 [2023-12-16 17:20:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:57,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:57,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:20:57,500 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:57,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:57,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961102383] [2023-12-16 17:20:57,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961102383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:57,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:57,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:57,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93398176] [2023-12-16 17:20:57,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:57,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:57,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:57,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:57,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:57,502 INFO L87 Difference]: Start difference. First operand 543 states and 902 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:57,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:57,708 INFO L93 Difference]: Finished difference Result 1119 states and 1867 transitions. [2023-12-16 17:20:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:20:57,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2023-12-16 17:20:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:57,712 INFO L225 Difference]: With dead ends: 1119 [2023-12-16 17:20:57,712 INFO L226 Difference]: Without dead ends: 572 [2023-12-16 17:20:57,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:57,716 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 141 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:57,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 2396 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:20:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-16 17:20:57,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 558. [2023-12-16 17:20:57,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 443 states have (on average 1.6681715575620768) internal successors, (739), 462 states have internal predecessors, (739), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:57,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 916 transitions. [2023-12-16 17:20:57,729 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 916 transitions. Word has length 100 [2023-12-16 17:20:57,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:57,729 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 916 transitions. [2023-12-16 17:20:57,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:57,730 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 916 transitions. [2023-12-16 17:20:57,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 17:20:57,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:57,733 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:57,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-16 17:20:57,942 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 [2023-12-16 17:20:57,943 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:57,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:57,943 INFO L85 PathProgramCache]: Analyzing trace with hash -591026255, now seen corresponding path program 1 times [2023-12-16 17:20:57,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:57,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890574259] [2023-12-16 17:20:57,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:57,944 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 [2023-12-16 17:20:57,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:57,949 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) [2023-12-16 17:20:57,950 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 [2023-12-16 17:20:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:58,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:20:58,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:20:58,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:58,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890574259] [2023-12-16 17:20:58,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890574259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:58,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:58,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:20:58,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121011562] [2023-12-16 17:20:58,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:58,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:20:58,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:58,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:20:58,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:20:58,316 INFO L87 Difference]: Start difference. First operand 558 states and 916 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:20:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:58,468 INFO L93 Difference]: Finished difference Result 1084 states and 1789 transitions. [2023-12-16 17:20:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:20:58,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2023-12-16 17:20:58,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:58,472 INFO L225 Difference]: With dead ends: 1084 [2023-12-16 17:20:58,472 INFO L226 Difference]: Without dead ends: 551 [2023-12-16 17:20:58,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:20:58,475 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 130 mSDsluCounter, 4154 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 5015 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:58,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 5015 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:58,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-16 17:20:58,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 537. [2023-12-16 17:20:58,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 422 states have (on average 1.6635071090047393) internal successors, (702), 441 states have internal predecessors, (702), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:58,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 879 transitions. [2023-12-16 17:20:58,489 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 879 transitions. Word has length 100 [2023-12-16 17:20:58,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:58,490 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 879 transitions. [2023-12-16 17:20:58,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:20:58,490 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 879 transitions. [2023-12-16 17:20:58,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:20:58,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:58,492 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:58,520 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 [2023-12-16 17:20:58,702 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 [2023-12-16 17:20:58,702 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:58,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:58,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1553750351, now seen corresponding path program 1 times [2023-12-16 17:20:58,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:58,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74399558] [2023-12-16 17:20:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:58,703 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 [2023-12-16 17:20:58,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:58,705 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) [2023-12-16 17:20:58,706 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 [2023-12-16 17:20:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:59,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:59,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:20:59,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:59,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:59,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74399558] [2023-12-16 17:20:59,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74399558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:59,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:59,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:59,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268979356] [2023-12-16 17:20:59,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:59,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:59,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:59,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:59,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:59,082 INFO L87 Difference]: Start difference. First operand 537 states and 879 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:59,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:59,176 INFO L93 Difference]: Finished difference Result 1049 states and 1728 transitions. [2023-12-16 17:20:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:59,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2023-12-16 17:20:59,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:59,178 INFO L225 Difference]: With dead ends: 1049 [2023-12-16 17:20:59,179 INFO L226 Difference]: Without dead ends: 537 [2023-12-16 17:20:59,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:59,181 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 68 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:59,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 2408 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:59,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-16 17:20:59,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2023-12-16 17:20:59,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 422 states have (on average 1.661137440758294) internal successors, (701), 441 states have internal predecessors, (701), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:59,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 878 transitions. [2023-12-16 17:20:59,216 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 878 transitions. Word has length 101 [2023-12-16 17:20:59,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:59,216 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 878 transitions. [2023-12-16 17:20:59,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:59,216 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 878 transitions. [2023-12-16 17:20:59,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:20:59,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:59,218 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:59,240 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 [2023-12-16 17:20:59,443 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 [2023-12-16 17:20:59,443 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:59,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:59,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1583179382, now seen corresponding path program 1 times [2023-12-16 17:20:59,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:59,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387067301] [2023-12-16 17:20:59,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:59,444 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 [2023-12-16 17:20:59,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:59,447 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) [2023-12-16 17:20:59,450 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 [2023-12-16 17:20:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:59,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:20:59,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:59,750 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:20:59,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:59,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:59,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387067301] [2023-12-16 17:20:59,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387067301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:59,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:59,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:59,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297542757] [2023-12-16 17:20:59,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:59,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:59,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:59,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:59,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:59,752 INFO L87 Difference]: Start difference. First operand 537 states and 878 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:59,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:59,850 INFO L93 Difference]: Finished difference Result 1049 states and 1727 transitions. [2023-12-16 17:20:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:59,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2023-12-16 17:20:59,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:59,852 INFO L225 Difference]: With dead ends: 1049 [2023-12-16 17:20:59,852 INFO L226 Difference]: Without dead ends: 537 [2023-12-16 17:20:59,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:59,854 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 66 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:59,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 2408 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:59,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-16 17:20:59,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2023-12-16 17:20:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 422 states have (on average 1.6587677725118484) internal successors, (700), 441 states have internal predecessors, (700), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:20:59,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 877 transitions. [2023-12-16 17:20:59,866 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 877 transitions. Word has length 102 [2023-12-16 17:20:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:59,866 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 877 transitions. [2023-12-16 17:20:59,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:20:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 877 transitions. [2023-12-16 17:20:59,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 17:20:59,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:59,867 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:20:59,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:00,075 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 [2023-12-16 17:21:00,076 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:00,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:00,076 INFO L85 PathProgramCache]: Analyzing trace with hash 644352662, now seen corresponding path program 1 times [2023-12-16 17:21:00,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:00,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401373352] [2023-12-16 17:21:00,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:00,077 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 [2023-12-16 17:21:00,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:00,082 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) [2023-12-16 17:21:00,085 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 [2023-12-16 17:21:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:00,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:21:00,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:00,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:00,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401373352] [2023-12-16 17:21:00,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401373352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:00,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:00,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:00,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970099324] [2023-12-16 17:21:00,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:00,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:00,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:00,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:00,455 INFO L87 Difference]: Start difference. First operand 537 states and 877 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:00,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:00,736 INFO L93 Difference]: Finished difference Result 1053 states and 1733 transitions. [2023-12-16 17:21:00,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:00,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2023-12-16 17:21:00,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:00,739 INFO L225 Difference]: With dead ends: 1053 [2023-12-16 17:21:00,739 INFO L226 Difference]: Without dead ends: 547 [2023-12-16 17:21:00,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:00,741 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 81 mSDsluCounter, 4792 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:00,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 5599 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:21:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-12-16 17:21:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 539. [2023-12-16 17:21:00,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 424 states have (on average 1.653301886792453) internal successors, (701), 443 states have internal predecessors, (701), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:21:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 878 transitions. [2023-12-16 17:21:00,751 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 878 transitions. Word has length 103 [2023-12-16 17:21:00,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:00,751 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 878 transitions. [2023-12-16 17:21:00,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:00,751 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 878 transitions. [2023-12-16 17:21:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 17:21:00,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:00,752 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:00,771 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 (16)] Ended with exit code 0 [2023-12-16 17:21:00,971 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 [2023-12-16 17:21:00,972 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:00,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:00,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1547162251, now seen corresponding path program 1 times [2023-12-16 17:21:00,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:00,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411443447] [2023-12-16 17:21:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:00,972 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 [2023-12-16 17:21:00,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:00,974 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) [2023-12-16 17:21:01,006 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 [2023-12-16 17:21:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:01,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:21:01,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:21:01,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:01,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:01,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411443447] [2023-12-16 17:21:01,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411443447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:01,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:01,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:01,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828899970] [2023-12-16 17:21:01,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:01,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:01,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:01,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:01,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:01,521 INFO L87 Difference]: Start difference. First operand 539 states and 878 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:01,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:01,913 INFO L93 Difference]: Finished difference Result 1045 states and 1714 transitions. [2023-12-16 17:21:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:01,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2023-12-16 17:21:01,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:01,918 INFO L225 Difference]: With dead ends: 1045 [2023-12-16 17:21:01,918 INFO L226 Difference]: Without dead ends: 543 [2023-12-16 17:21:01,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:01,921 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 71 mSDsluCounter, 4788 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 5597 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:01,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 5597 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:21:01,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-16 17:21:01,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 541. [2023-12-16 17:21:01,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 426 states have (on average 1.647887323943662) internal successors, (702), 445 states have internal predecessors, (702), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:21:01,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 879 transitions. [2023-12-16 17:21:01,935 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 879 transitions. Word has length 104 [2023-12-16 17:21:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:01,936 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 879 transitions. [2023-12-16 17:21:01,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:01,936 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 879 transitions. [2023-12-16 17:21:01,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 17:21:01,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:01,938 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:01,964 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 [2023-12-16 17:21:02,165 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 [2023-12-16 17:21:02,165 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:02,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:02,165 INFO L85 PathProgramCache]: Analyzing trace with hash 190513324, now seen corresponding path program 1 times [2023-12-16 17:21:02,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:02,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793353202] [2023-12-16 17:21:02,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:02,166 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 [2023-12-16 17:21:02,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:02,167 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) [2023-12-16 17:21:02,170 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 [2023-12-16 17:21:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:02,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:21:02,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:02,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:02,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:02,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793353202] [2023-12-16 17:21:02,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793353202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:02,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:02,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:02,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091717630] [2023-12-16 17:21:02,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:02,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:02,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:02,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:02,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:02,600 INFO L87 Difference]: Start difference. First operand 541 states and 879 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:02,810 INFO L93 Difference]: Finished difference Result 993 states and 1643 transitions. [2023-12-16 17:21:02,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:02,811 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2023-12-16 17:21:02,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:02,813 INFO L225 Difference]: With dead ends: 993 [2023-12-16 17:21:02,813 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:21:02,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:02,815 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 54 mSDsluCounter, 4034 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4853 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:02,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4853 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:21:02,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:21:02,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:21:02,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 419 states have (on average 1.6563245823389021) internal successors, (694), 438 states have internal predecessors, (694), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:21:02,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 871 transitions. [2023-12-16 17:21:02,832 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 871 transitions. Word has length 105 [2023-12-16 17:21:02,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:02,832 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 871 transitions. [2023-12-16 17:21:02,833 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:02,833 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 871 transitions. [2023-12-16 17:21:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 17:21:02,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:02,848 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:02,866 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 [2023-12-16 17:21:03,048 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 [2023-12-16 17:21:03,049 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:03,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:03,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1784190453, now seen corresponding path program 1 times [2023-12-16 17:21:03,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:03,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867235750] [2023-12-16 17:21:03,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:03,050 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 [2023-12-16 17:21:03,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:03,051 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) [2023-12-16 17:21:03,052 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 [2023-12-16 17:21:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:03,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:21:03,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:03,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:03,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:03,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867235750] [2023-12-16 17:21:03,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867235750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:03,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:03,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:03,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054036454] [2023-12-16 17:21:03,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:03,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:03,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:03,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:03,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:03,417 INFO L87 Difference]: Start difference. First operand 534 states and 871 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:03,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:03,549 INFO L93 Difference]: Finished difference Result 998 states and 1657 transitions. [2023-12-16 17:21:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:03,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2023-12-16 17:21:03,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:03,551 INFO L225 Difference]: With dead ends: 998 [2023-12-16 17:21:03,551 INFO L226 Difference]: Without dead ends: 531 [2023-12-16 17:21:03,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:03,553 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 95 mSDsluCounter, 4008 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 4821 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:03,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 4821 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:03,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-16 17:21:03,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2023-12-16 17:21:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 416 states have (on average 1.65625) internal successors, (689), 435 states have internal predecessors, (689), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:21:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 866 transitions. [2023-12-16 17:21:03,563 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 866 transitions. Word has length 106 [2023-12-16 17:21:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:03,563 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 866 transitions. [2023-12-16 17:21:03,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:03,564 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 866 transitions. [2023-12-16 17:21:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 17:21:03,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:03,565 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:03,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:03,774 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 [2023-12-16 17:21:03,774 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:03,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:03,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1116538507, now seen corresponding path program 1 times [2023-12-16 17:21:03,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:03,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148887989] [2023-12-16 17:21:03,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:03,775 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 [2023-12-16 17:21:03,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:03,776 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) [2023-12-16 17:21:03,779 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 [2023-12-16 17:21:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:04,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:21:04,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:04,117 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:04,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:04,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:04,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148887989] [2023-12-16 17:21:04,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148887989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:04,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:04,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:04,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016663249] [2023-12-16 17:21:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:04,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:04,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:04,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:04,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:04,119 INFO L87 Difference]: Start difference. First operand 531 states and 866 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:04,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:04,249 INFO L93 Difference]: Finished difference Result 995 states and 1652 transitions. [2023-12-16 17:21:04,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:04,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2023-12-16 17:21:04,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:04,252 INFO L225 Difference]: With dead ends: 995 [2023-12-16 17:21:04,252 INFO L226 Difference]: Without dead ends: 523 [2023-12-16 17:21:04,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:04,254 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 103 mSDsluCounter, 3999 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 4811 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:04,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 4811 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:04,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-16 17:21:04,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2023-12-16 17:21:04,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 408 states have (on average 1.661764705882353) internal successors, (678), 427 states have internal predecessors, (678), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:21:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 855 transitions. [2023-12-16 17:21:04,264 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 855 transitions. Word has length 106 [2023-12-16 17:21:04,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:04,264 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 855 transitions. [2023-12-16 17:21:04,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:04,264 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 855 transitions. [2023-12-16 17:21:04,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 17:21:04,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:04,266 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:04,276 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 (20)] Ended with exit code 0 [2023-12-16 17:21:04,474 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 [2023-12-16 17:21:04,475 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:04,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:04,475 INFO L85 PathProgramCache]: Analyzing trace with hash 616835504, now seen corresponding path program 1 times [2023-12-16 17:21:04,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:04,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241114949] [2023-12-16 17:21:04,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:04,476 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 [2023-12-16 17:21:04,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:04,476 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) [2023-12-16 17:21:04,480 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 [2023-12-16 17:21:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:04,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:21:04,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:04,802 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:04,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:04,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:04,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241114949] [2023-12-16 17:21:04,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241114949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:04,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:04,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:04,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398292369] [2023-12-16 17:21:04,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:04,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:04,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:04,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:04,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:04,803 INFO L87 Difference]: Start difference. First operand 523 states and 855 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:04,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:04,964 INFO L93 Difference]: Finished difference Result 981 states and 1630 transitions. [2023-12-16 17:21:04,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:04,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 107 [2023-12-16 17:21:04,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:04,967 INFO L225 Difference]: With dead ends: 981 [2023-12-16 17:21:04,967 INFO L226 Difference]: Without dead ends: 523 [2023-12-16 17:21:04,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:04,968 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 52 mSDsluCounter, 4779 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 5585 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:04,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 5585 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:04,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-16 17:21:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2023-12-16 17:21:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 408 states have (on average 1.6593137254901962) internal successors, (677), 427 states have internal predecessors, (677), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:21:04,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 854 transitions. [2023-12-16 17:21:04,977 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 854 transitions. Word has length 107 [2023-12-16 17:21:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:04,977 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 854 transitions. [2023-12-16 17:21:04,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:04,978 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 854 transitions. [2023-12-16 17:21:04,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 17:21:04,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:04,979 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:04,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:05,188 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 [2023-12-16 17:21:05,188 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:05,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:05,189 INFO L85 PathProgramCache]: Analyzing trace with hash -36526679, now seen corresponding path program 1 times [2023-12-16 17:21:05,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:05,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818233623] [2023-12-16 17:21:05,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:05,189 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 [2023-12-16 17:21:05,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:05,190 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) [2023-12-16 17:21:05,191 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 [2023-12-16 17:21:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:05,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:21:05,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:05,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:05,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:05,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818233623] [2023-12-16 17:21:05,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818233623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:05,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:05,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:05,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9511077] [2023-12-16 17:21:05,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:05,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:05,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:05,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:05,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:05,584 INFO L87 Difference]: Start difference. First operand 523 states and 854 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:05,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:05,752 INFO L93 Difference]: Finished difference Result 1023 states and 1685 transitions. [2023-12-16 17:21:05,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:05,753 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2023-12-16 17:21:05,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:05,755 INFO L225 Difference]: With dead ends: 1023 [2023-12-16 17:21:05,755 INFO L226 Difference]: Without dead ends: 520 [2023-12-16 17:21:05,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:05,757 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 73 mSDsluCounter, 4733 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 5529 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:05,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 5529 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:05,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-16 17:21:05,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2023-12-16 17:21:05,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 405 states have (on average 1.651851851851852) internal successors, (669), 424 states have internal predecessors, (669), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:21:05,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 846 transitions. [2023-12-16 17:21:05,769 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 846 transitions. Word has length 108 [2023-12-16 17:21:05,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:05,769 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 846 transitions. [2023-12-16 17:21:05,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:05,770 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 846 transitions. [2023-12-16 17:21:05,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 17:21:05,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:05,788 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:05,799 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 [2023-12-16 17:21:05,997 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 [2023-12-16 17:21:05,997 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:05,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:05,998 INFO L85 PathProgramCache]: Analyzing trace with hash 146350165, now seen corresponding path program 1 times [2023-12-16 17:21:05,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:05,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224837022] [2023-12-16 17:21:05,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:05,998 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 [2023-12-16 17:21:05,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:06,013 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) [2023-12-16 17:21:06,048 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 [2023-12-16 17:21:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:06,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:21:06,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:06,353 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:06,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:06,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:06,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224837022] [2023-12-16 17:21:06,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224837022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:06,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:06,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:06,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510769073] [2023-12-16 17:21:06,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:06,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:06,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:06,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:06,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:06,354 INFO L87 Difference]: Start difference. First operand 520 states and 846 transitions. Second operand has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:06,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:06,517 INFO L93 Difference]: Finished difference Result 972 states and 1610 transitions. [2023-12-16 17:21:06,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:06,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 109 [2023-12-16 17:21:06,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:06,519 INFO L225 Difference]: With dead ends: 972 [2023-12-16 17:21:06,519 INFO L226 Difference]: Without dead ends: 520 [2023-12-16 17:21:06,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:06,522 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 47 mSDsluCounter, 4726 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5521 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:06,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 5521 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-12-16 17:21:06,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2023-12-16 17:21:06,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 405 states have (on average 1.6493827160493828) internal successors, (668), 424 states have internal predecessors, (668), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:21:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 845 transitions. [2023-12-16 17:21:06,532 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 845 transitions. Word has length 109 [2023-12-16 17:21:06,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:06,532 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 845 transitions. [2023-12-16 17:21:06,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:06,533 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 845 transitions. [2023-12-16 17:21:06,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 17:21:06,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:06,534 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:06,542 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 [2023-12-16 17:21:06,742 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 [2023-12-16 17:21:06,743 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:06,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:06,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1546781414, now seen corresponding path program 1 times [2023-12-16 17:21:06,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:06,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358193367] [2023-12-16 17:21:06,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:06,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:21:06,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:06,744 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) [2023-12-16 17:21:06,778 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 [2023-12-16 17:21:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:07,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:21:07,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:21:07,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:07,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:07,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358193367] [2023-12-16 17:21:07,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358193367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:07,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:07,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:07,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974709299] [2023-12-16 17:21:07,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:07,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:07,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:07,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:07,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:07,087 INFO L87 Difference]: Start difference. First operand 520 states and 845 transitions. Second operand has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:07,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:07,243 INFO L93 Difference]: Finished difference Result 1008 states and 1653 transitions. [2023-12-16 17:21:07,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:21:07,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 110 [2023-12-16 17:21:07,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:07,246 INFO L225 Difference]: With dead ends: 1008 [2023-12-16 17:21:07,246 INFO L226 Difference]: Without dead ends: 517 [2023-12-16 17:21:07,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:07,247 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 63 mSDsluCounter, 4718 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 5513 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:07,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 5513 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-12-16 17:21:07,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2023-12-16 17:21:07,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 402 states have (on average 1.6417910447761195) internal successors, (660), 421 states have internal predecessors, (660), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-16 17:21:07,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 837 transitions. [2023-12-16 17:21:07,256 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 837 transitions. Word has length 110 [2023-12-16 17:21:07,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:07,257 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 837 transitions. [2023-12-16 17:21:07,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:07,257 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 837 transitions. [2023-12-16 17:21:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 17:21:07,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:07,259 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:07,267 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 [2023-12-16 17:21:07,467 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 [2023-12-16 17:21:07,468 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:07,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1123267142, now seen corresponding path program 1 times [2023-12-16 17:21:07,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:07,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653837310] [2023-12-16 17:21:07,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:07,469 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 [2023-12-16 17:21:07,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:07,470 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) [2023-12-16 17:21:07,503 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 [2023-12-16 17:21:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:07,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 17:21:07,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:07,963 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:21:07,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:07,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:07,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653837310] [2023-12-16 17:21:07,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653837310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:07,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:07,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:21:07,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800120101] [2023-12-16 17:21:07,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:07,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:21:07,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:07,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:21:07,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:21:07,965 INFO L87 Difference]: Start difference. First operand 517 states and 837 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:09,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:09,925 INFO L93 Difference]: Finished difference Result 967 states and 1616 transitions. [2023-12-16 17:21:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:09,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2023-12-16 17:21:09,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:09,928 INFO L225 Difference]: With dead ends: 967 [2023-12-16 17:21:09,928 INFO L226 Difference]: Without dead ends: 522 [2023-12-16 17:21:09,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:21:09,930 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1259 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 3082 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 3449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 3082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:09,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 1858 Invalid, 3449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 3082 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 17:21:09,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-12-16 17:21:09,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 521. [2023-12-16 17:21:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 405 states have (on average 1.637037037037037) internal successors, (663), 424 states have internal predecessors, (663), 91 states have call successors, (91), 24 states have call predecessors, (91), 24 states have return successors, (102), 85 states have call predecessors, (102), 86 states have call successors, (102) [2023-12-16 17:21:09,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 856 transitions. [2023-12-16 17:21:09,946 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 856 transitions. Word has length 111 [2023-12-16 17:21:09,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:09,946 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 856 transitions. [2023-12-16 17:21:09,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 856 transitions. [2023-12-16 17:21:09,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 17:21:09,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:09,948 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:09,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:10,156 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 [2023-12-16 17:21:10,156 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:10,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:10,157 INFO L85 PathProgramCache]: Analyzing trace with hash 704117279, now seen corresponding path program 1 times [2023-12-16 17:21:10,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:10,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802538859] [2023-12-16 17:21:10,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:10,158 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 [2023-12-16 17:21:10,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:10,178 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) [2023-12-16 17:21:10,211 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 [2023-12-16 17:21:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:10,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:21:10,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:10,597 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:21:10,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:10,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:10,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802538859] [2023-12-16 17:21:10,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802538859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:10,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:10,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:10,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334200732] [2023-12-16 17:21:10,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:10,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:10,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:10,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:10,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:10,599 INFO L87 Difference]: Start difference. First operand 521 states and 856 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:14,061 INFO L93 Difference]: Finished difference Result 1789 states and 3075 transitions. [2023-12-16 17:21:14,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:21:14,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2023-12-16 17:21:14,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:14,069 INFO L225 Difference]: With dead ends: 1789 [2023-12-16 17:21:14,069 INFO L226 Difference]: Without dead ends: 1340 [2023-12-16 17:21:14,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:21:14,071 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 2233 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 4668 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 5240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 4668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:14,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 2433 Invalid, 5240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 4668 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 17:21:14,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2023-12-16 17:21:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1286. [2023-12-16 17:21:14,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 996 states have (on average 1.6676706827309238) internal successors, (1661), 1044 states have internal predecessors, (1661), 232 states have call successors, (232), 57 states have call predecessors, (232), 57 states have return successors, (247), 221 states have call predecessors, (247), 227 states have call successors, (247) [2023-12-16 17:21:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 2140 transitions. [2023-12-16 17:21:14,115 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 2140 transitions. Word has length 112 [2023-12-16 17:21:14,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:14,115 INFO L495 AbstractCegarLoop]: Abstraction has 1286 states and 2140 transitions. [2023-12-16 17:21:14,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:14,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 2140 transitions. [2023-12-16 17:21:14,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 17:21:14,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:14,116 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:14,124 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 (26)] Ended with exit code 0 [2023-12-16 17:21:14,324 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 [2023-12-16 17:21:14,324 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:14,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:14,325 INFO L85 PathProgramCache]: Analyzing trace with hash -955545777, now seen corresponding path program 1 times [2023-12-16 17:21:14,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:14,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811368053] [2023-12-16 17:21:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:14,325 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 [2023-12-16 17:21:14,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:14,326 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) [2023-12-16 17:21:14,359 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 [2023-12-16 17:21:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:14,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:21:14,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:21:14,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:14,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:14,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811368053] [2023-12-16 17:21:14,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811368053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:14,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:14,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:14,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484552054] [2023-12-16 17:21:14,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:14,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:14,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:14,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:14,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:14,782 INFO L87 Difference]: Start difference. First operand 1286 states and 2140 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:18,944 INFO L93 Difference]: Finished difference Result 5155 states and 8953 transitions. [2023-12-16 17:21:18,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:21:18,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 114 [2023-12-16 17:21:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:18,965 INFO L225 Difference]: With dead ends: 5155 [2023-12-16 17:21:18,965 INFO L226 Difference]: Without dead ends: 3941 [2023-12-16 17:21:18,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:21:18,972 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 3242 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 5484 mSolverCounterSat, 1076 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3369 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 6560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1076 IncrementalHoareTripleChecker+Valid, 5484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:18,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3369 Valid, 2417 Invalid, 6560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1076 Valid, 5484 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-16 17:21:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2023-12-16 17:21:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3029. [2023-12-16 17:21:19,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3029 states, 2234 states have (on average 1.6602506714413607) internal successors, (3709), 2380 states have internal predecessors, (3709), 677 states have call successors, (677), 106 states have call predecessors, (677), 117 states have return successors, (804), 664 states have call predecessors, (804), 672 states have call successors, (804) [2023-12-16 17:21:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 5190 transitions. [2023-12-16 17:21:19,159 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 5190 transitions. Word has length 114 [2023-12-16 17:21:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:19,159 INFO L495 AbstractCegarLoop]: Abstraction has 3029 states and 5190 transitions. [2023-12-16 17:21:19,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 5190 transitions. [2023-12-16 17:21:19,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 17:21:19,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:19,161 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:19,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-16 17:21:19,369 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 [2023-12-16 17:21:19,369 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:19,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:19,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1349912563, now seen corresponding path program 1 times [2023-12-16 17:21:19,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:19,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160621336] [2023-12-16 17:21:19,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:19,371 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 [2023-12-16 17:21:19,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:19,385 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) [2023-12-16 17:21:19,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 17:21:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:19,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:21:19,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:21:19,846 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:19,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:19,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160621336] [2023-12-16 17:21:19,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160621336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:19,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:19,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:19,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289948828] [2023-12-16 17:21:19,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:19,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:19,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:19,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:19,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:19,847 INFO L87 Difference]: Start difference. First operand 3029 states and 5190 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:22,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:22,310 INFO L93 Difference]: Finished difference Result 8079 states and 13970 transitions. [2023-12-16 17:21:22,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 17:21:22,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 114 [2023-12-16 17:21:22,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:22,347 INFO L225 Difference]: With dead ends: 8079 [2023-12-16 17:21:22,347 INFO L226 Difference]: Without dead ends: 5923 [2023-12-16 17:21:22,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:21:22,360 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 2548 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 3303 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2621 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 3824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 3303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:22,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2621 Valid, 1581 Invalid, 3824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 3303 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 17:21:22,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2023-12-16 17:21:22,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 5570. [2023-12-16 17:21:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5570 states, 4133 states have (on average 1.6631986450520204) internal successors, (6874), 4400 states have internal predecessors, (6874), 1205 states have call successors, (1205), 190 states have call predecessors, (1205), 231 states have return successors, (1507), 1183 states have call predecessors, (1507), 1200 states have call successors, (1507) [2023-12-16 17:21:22,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5570 states to 5570 states and 9586 transitions. [2023-12-16 17:21:22,731 INFO L78 Accepts]: Start accepts. Automaton has 5570 states and 9586 transitions. Word has length 114 [2023-12-16 17:21:22,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:22,731 INFO L495 AbstractCegarLoop]: Abstraction has 5570 states and 9586 transitions. [2023-12-16 17:21:22,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:21:22,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5570 states and 9586 transitions. [2023-12-16 17:21:22,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 17:21:22,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:22,733 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:22,741 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 [2023-12-16 17:21:22,940 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 [2023-12-16 17:21:22,941 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:22,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:22,942 INFO L85 PathProgramCache]: Analyzing trace with hash 169710480, now seen corresponding path program 1 times [2023-12-16 17:21:22,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:22,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617692542] [2023-12-16 17:21:22,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:22,943 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 [2023-12-16 17:21:22,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:22,943 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) [2023-12-16 17:21:22,977 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 [2023-12-16 17:21:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:23,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:21:23,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:21:23,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:23,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:23,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617692542] [2023-12-16 17:21:23,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617692542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:23,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:23,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:21:23,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599044485] [2023-12-16 17:21:23,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:23,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:21:23,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:23,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:21:23,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:21:23,431 INFO L87 Difference]: Start difference. First operand 5570 states and 9586 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-16 17:21:26,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:26,723 INFO L93 Difference]: Finished difference Result 11242 states and 19358 transitions. [2023-12-16 17:21:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:21:26,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 118 [2023-12-16 17:21:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:26,752 INFO L225 Difference]: With dead ends: 11242 [2023-12-16 17:21:26,752 INFO L226 Difference]: Without dead ends: 6545 [2023-12-16 17:21:26,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-12-16 17:21:26,770 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 1933 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 4967 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2004 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 5415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 4967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:26,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2004 Valid, 2432 Invalid, 5415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 4967 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 17:21:26,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6545 states. [2023-12-16 17:21:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6545 to 6060. [2023-12-16 17:21:27,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6060 states, 4487 states have (on average 1.6398484510809004) internal successors, (7358), 4784 states have internal predecessors, (7358), 1289 states have call successors, (1289), 230 states have call predecessors, (1289), 283 states have return successors, (1669), 1249 states have call predecessors, (1669), 1284 states have call successors, (1669) [2023-12-16 17:21:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6060 states to 6060 states and 10316 transitions. [2023-12-16 17:21:27,146 INFO L78 Accepts]: Start accepts. Automaton has 6060 states and 10316 transitions. Word has length 118 [2023-12-16 17:21:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:27,147 INFO L495 AbstractCegarLoop]: Abstraction has 6060 states and 10316 transitions. [2023-12-16 17:21:27,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-16 17:21:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 6060 states and 10316 transitions. [2023-12-16 17:21:27,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 17:21:27,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:27,149 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:27,157 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 [2023-12-16 17:21:27,357 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 [2023-12-16 17:21:27,357 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:27,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:27,357 INFO L85 PathProgramCache]: Analyzing trace with hash 927806352, now seen corresponding path program 1 times [2023-12-16 17:21:27,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:27,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436536726] [2023-12-16 17:21:27,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:27,358 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 [2023-12-16 17:21:27,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:27,359 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) [2023-12-16 17:21:27,392 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 (30)] Waiting until timeout for monitored process [2023-12-16 17:21:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:27,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:21:27,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:21:27,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:27,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:27,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436536726] [2023-12-16 17:21:27,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436536726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:27,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:27,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:21:27,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228458794] [2023-12-16 17:21:27,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:27,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:21:27,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:27,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:21:27,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:21:27,691 INFO L87 Difference]: Start difference. First operand 6060 states and 10316 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:21:28,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:28,116 INFO L93 Difference]: Finished difference Result 11791 states and 20218 transitions. [2023-12-16 17:21:28,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:21:28,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 125 [2023-12-16 17:21:28,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:28,136 INFO L225 Difference]: With dead ends: 11791 [2023-12-16 17:21:28,136 INFO L226 Difference]: Without dead ends: 6060 [2023-12-16 17:21:28,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:21:28,148 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 234 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:28,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 2278 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:21:28,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6060 states. [2023-12-16 17:21:28,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 6060. [2023-12-16 17:21:28,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6060 states, 4487 states have (on average 1.6157789168709606) internal successors, (7250), 4784 states have internal predecessors, (7250), 1289 states have call successors, (1289), 230 states have call predecessors, (1289), 283 states have return successors, (1669), 1249 states have call predecessors, (1669), 1284 states have call successors, (1669) [2023-12-16 17:21:28,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6060 states to 6060 states and 10208 transitions. [2023-12-16 17:21:28,501 INFO L78 Accepts]: Start accepts. Automaton has 6060 states and 10208 transitions. Word has length 125 [2023-12-16 17:21:28,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:28,501 INFO L495 AbstractCegarLoop]: Abstraction has 6060 states and 10208 transitions. [2023-12-16 17:21:28,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:21:28,501 INFO L276 IsEmpty]: Start isEmpty. Operand 6060 states and 10208 transitions. [2023-12-16 17:21:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 17:21:28,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:28,503 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:28,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:28,715 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 [2023-12-16 17:21:28,715 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:28,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:28,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1307563669, now seen corresponding path program 1 times [2023-12-16 17:21:28,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:28,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239851793] [2023-12-16 17:21:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:28,716 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 [2023-12-16 17:21:28,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:28,717 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) [2023-12-16 17:21:28,747 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 [2023-12-16 17:21:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:29,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:21:29,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:29,132 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:21:29,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:29,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:29,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239851793] [2023-12-16 17:21:29,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239851793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:29,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:29,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:29,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081744078] [2023-12-16 17:21:29,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:29,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:29,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:29,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:29,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:29,133 INFO L87 Difference]: Start difference. First operand 6060 states and 10208 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 17:21:31,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:31,768 INFO L93 Difference]: Finished difference Result 11739 states and 19824 transitions. [2023-12-16 17:21:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:21:31,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 130 [2023-12-16 17:21:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:31,796 INFO L225 Difference]: With dead ends: 11739 [2023-12-16 17:21:31,797 INFO L226 Difference]: Without dead ends: 6665 [2023-12-16 17:21:31,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:21:31,813 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 1988 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 3099 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 3554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 3099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:31,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 1509 Invalid, 3554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 3099 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 17:21:31,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6665 states. [2023-12-16 17:21:32,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6665 to 6346. [2023-12-16 17:21:32,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 4699 states have (on average 1.6007661204511598) internal successors, (7522), 5018 states have internal predecessors, (7522), 1315 states have call successors, (1315), 258 states have call predecessors, (1315), 331 states have return successors, (1769), 1273 states have call predecessors, (1769), 1310 states have call successors, (1769) [2023-12-16 17:21:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 10606 transitions. [2023-12-16 17:21:32,173 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 10606 transitions. Word has length 130 [2023-12-16 17:21:32,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:32,173 INFO L495 AbstractCegarLoop]: Abstraction has 6346 states and 10606 transitions. [2023-12-16 17:21:32,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 17:21:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 10606 transitions. [2023-12-16 17:21:32,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 17:21:32,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:32,175 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:32,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-16 17:21:32,383 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 [2023-12-16 17:21:32,383 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:32,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:32,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1674038362, now seen corresponding path program 1 times [2023-12-16 17:21:32,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:32,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545957044] [2023-12-16 17:21:32,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:32,384 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 [2023-12-16 17:21:32,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:32,385 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) [2023-12-16 17:21:32,387 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 [2023-12-16 17:21:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:32,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:21:32,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 17:21:32,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:32,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:32,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545957044] [2023-12-16 17:21:32,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545957044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:32,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:32,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:21:32,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509441330] [2023-12-16 17:21:32,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:32,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:32,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:32,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:32,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:32,906 INFO L87 Difference]: Start difference. First operand 6346 states and 10606 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:21:36,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:36,115 INFO L93 Difference]: Finished difference Result 12133 states and 20302 transitions. [2023-12-16 17:21:36,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:21:36,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-12-16 17:21:36,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:36,162 INFO L225 Difference]: With dead ends: 12133 [2023-12-16 17:21:36,162 INFO L226 Difference]: Without dead ends: 6772 [2023-12-16 17:21:36,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:21:36,174 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 1596 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 4028 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 4380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 4028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:36,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 1988 Invalid, 4380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 4028 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 17:21:36,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6772 states. [2023-12-16 17:21:36,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6772 to 6287. [2023-12-16 17:21:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6287 states, 4656 states have (on average 1.5985824742268042) internal successors, (7443), 4968 states have internal predecessors, (7443), 1305 states have call successors, (1305), 258 states have call predecessors, (1305), 325 states have return successors, (1720), 1264 states have call predecessors, (1720), 1300 states have call successors, (1720) [2023-12-16 17:21:36,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6287 states to 6287 states and 10468 transitions. [2023-12-16 17:21:36,560 INFO L78 Accepts]: Start accepts. Automaton has 6287 states and 10468 transitions. Word has length 134 [2023-12-16 17:21:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:36,561 INFO L495 AbstractCegarLoop]: Abstraction has 6287 states and 10468 transitions. [2023-12-16 17:21:36,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:21:36,561 INFO L276 IsEmpty]: Start isEmpty. Operand 6287 states and 10468 transitions. [2023-12-16 17:21:36,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 17:21:36,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:36,563 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:36,582 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 [2023-12-16 17:21:36,773 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 [2023-12-16 17:21:36,774 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:36,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1251336536, now seen corresponding path program 1 times [2023-12-16 17:21:36,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:36,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396293502] [2023-12-16 17:21:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:36,775 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 [2023-12-16 17:21:36,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:36,776 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) [2023-12-16 17:21:36,777 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 [2023-12-16 17:21:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:37,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:21:37,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 17:21:37,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:37,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:37,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396293502] [2023-12-16 17:21:37,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396293502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:37,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:37,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:21:37,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256787023] [2023-12-16 17:21:37,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:37,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:21:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:37,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:21:37,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:37,357 INFO L87 Difference]: Start difference. First operand 6287 states and 10468 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:21:40,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:40,526 INFO L93 Difference]: Finished difference Result 13844 states and 23250 transitions. [2023-12-16 17:21:40,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:21:40,528 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-12-16 17:21:40,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:40,561 INFO L225 Difference]: With dead ends: 13844 [2023-12-16 17:21:40,561 INFO L226 Difference]: Without dead ends: 8534 [2023-12-16 17:21:40,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:21:40,576 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 1677 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 3519 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 3906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 3519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:40,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 1524 Invalid, 3906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 3519 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 17:21:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2023-12-16 17:21:40,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 8259. [2023-12-16 17:21:41,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8259 states, 6084 states have (on average 1.6000986193293885) internal successors, (9735), 6504 states have internal predecessors, (9735), 1765 states have call successors, (1765), 344 states have call predecessors, (1765), 409 states have return successors, (2328), 1692 states have call predecessors, (2328), 1760 states have call successors, (2328) [2023-12-16 17:21:41,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8259 states to 8259 states and 13828 transitions. [2023-12-16 17:21:41,042 INFO L78 Accepts]: Start accepts. Automaton has 8259 states and 13828 transitions. Word has length 134 [2023-12-16 17:21:41,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:41,042 INFO L495 AbstractCegarLoop]: Abstraction has 8259 states and 13828 transitions. [2023-12-16 17:21:41,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:21:41,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8259 states and 13828 transitions. [2023-12-16 17:21:41,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 17:21:41,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:41,044 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:41,056 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 [2023-12-16 17:21:41,254 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 [2023-12-16 17:21:41,254 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:41,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:41,255 INFO L85 PathProgramCache]: Analyzing trace with hash 771359395, now seen corresponding path program 1 times [2023-12-16 17:21:41,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:41,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486053397] [2023-12-16 17:21:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:41,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:21:41,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:41,256 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) [2023-12-16 17:21:41,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-16 17:21:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:41,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:21:41,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 17:21:41,658 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:21:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 17:21:41,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:41,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486053397] [2023-12-16 17:21:41,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486053397] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:21:41,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:21:41,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-16 17:21:41,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682445530] [2023-12-16 17:21:41,971 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:21:41,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:21:41,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:41,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:21:41,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:41,972 INFO L87 Difference]: Start difference. First operand 8259 states and 13828 transitions. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 6 states have call successors, (23), 4 states have call predecessors, (23), 7 states have return successors, (24), 8 states have call predecessors, (24), 5 states have call successors, (24) [2023-12-16 17:21:45,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:45,634 INFO L93 Difference]: Finished difference Result 33294 states and 56079 transitions. [2023-12-16 17:21:45,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:21:45,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 6 states have call successors, (23), 4 states have call predecessors, (23), 7 states have return successors, (24), 8 states have call predecessors, (24), 5 states have call successors, (24) Word has length 135 [2023-12-16 17:21:45,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:45,819 INFO L225 Difference]: With dead ends: 33294 [2023-12-16 17:21:45,819 INFO L226 Difference]: Without dead ends: 25105 [2023-12-16 17:21:45,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:21:45,847 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 3885 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 3287 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3962 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 3287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:45,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3962 Valid, 1234 Invalid, 4263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [976 Valid, 3287 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 17:21:45,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25105 states. [2023-12-16 17:21:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25105 to 24957. [2023-12-16 17:21:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24957 states, 18383 states have (on average 1.6013708317467226) internal successors, (29438), 19690 states have internal predecessors, (29438), 5321 states have call successors, (5321), 1030 states have call predecessors, (5321), 1252 states have return successors, (7187), 5082 states have call predecessors, (7187), 5316 states have call successors, (7187) [2023-12-16 17:21:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24957 states to 24957 states and 41946 transitions. [2023-12-16 17:21:47,441 INFO L78 Accepts]: Start accepts. Automaton has 24957 states and 41946 transitions. Word has length 135 [2023-12-16 17:21:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:47,442 INFO L495 AbstractCegarLoop]: Abstraction has 24957 states and 41946 transitions. [2023-12-16 17:21:47,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 8 states have internal predecessors, (148), 6 states have call successors, (23), 4 states have call predecessors, (23), 7 states have return successors, (24), 8 states have call predecessors, (24), 5 states have call successors, (24) [2023-12-16 17:21:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 24957 states and 41946 transitions. [2023-12-16 17:21:47,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 17:21:47,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:47,444 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:47,470 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 [2023-12-16 17:21:47,653 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 [2023-12-16 17:21:47,653 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:47,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:47,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1908555081, now seen corresponding path program 1 times [2023-12-16 17:21:47,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:47,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874766250] [2023-12-16 17:21:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:47,654 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 [2023-12-16 17:21:47,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:47,655 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) [2023-12-16 17:21:47,768 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 [2023-12-16 17:21:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:48,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:21:48,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:48,146 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:21:48,146 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:48,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:48,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874766250] [2023-12-16 17:21:48,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874766250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:48,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:48,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:21:48,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551341500] [2023-12-16 17:21:48,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:48,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:21:48,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:48,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:21:48,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:21:48,149 INFO L87 Difference]: Start difference. First operand 24957 states and 41946 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:21:50,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:21:50,443 INFO L93 Difference]: Finished difference Result 58259 states and 96982 transitions. [2023-12-16 17:21:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:21:50,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2023-12-16 17:21:50,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:21:50,715 INFO L225 Difference]: With dead ends: 58259 [2023-12-16 17:21:50,715 INFO L226 Difference]: Without dead ends: 36158 [2023-12-16 17:21:50,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:21:50,765 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 341 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 3683 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:50,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 3683 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:21:50,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36158 states. [2023-12-16 17:21:53,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36158 to 34776. [2023-12-16 17:21:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34776 states, 25948 states have (on average 1.5573839987667644) internal successors, (40411), 27602 states have internal predecessors, (40411), 6815 states have call successors, (6815), 1664 states have call predecessors, (6815), 2012 states have return successors, (9954), 6355 states have call predecessors, (9954), 6810 states have call successors, (9954) [2023-12-16 17:21:53,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34776 states to 34776 states and 57180 transitions. [2023-12-16 17:21:53,220 INFO L78 Accepts]: Start accepts. Automaton has 34776 states and 57180 transitions. Word has length 137 [2023-12-16 17:21:53,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:21:53,221 INFO L495 AbstractCegarLoop]: Abstraction has 34776 states and 57180 transitions. [2023-12-16 17:21:53,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:21:53,221 INFO L276 IsEmpty]: Start isEmpty. Operand 34776 states and 57180 transitions. [2023-12-16 17:21:53,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 17:21:53,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:21:53,223 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:21:53,230 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 (35)] Ended with exit code 0 [2023-12-16 17:21:53,430 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 [2023-12-16 17:21:53,430 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:21:53,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:21:53,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1867880331, now seen corresponding path program 1 times [2023-12-16 17:21:53,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:21:53,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365528878] [2023-12-16 17:21:53,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:21:53,431 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 [2023-12-16 17:21:53,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:21:53,432 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) [2023-12-16 17:21:53,465 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 [2023-12-16 17:21:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:21:53,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:21:53,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:21:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:21:53,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:21:53,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:21:53,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365528878] [2023-12-16 17:21:53,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365528878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:21:53,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:21:53,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:21:53,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491393339] [2023-12-16 17:21:53,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:21:53,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:21:53,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:21:53,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:21:53,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:21:53,894 INFO L87 Difference]: Start difference. First operand 34776 states and 57180 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Received shutdown request... [2023-12-16 17:21:54,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:21:54,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:21:54,951 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1198 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:21:54,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 617 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 17:21:54,952 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:21:54,954 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:21:54,960 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 [2023-12-16 17:21:54,969 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:21:55,160 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 [2023-12-16 17:21:55,161 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (34776states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (6902 states constructed, input type IntersectNwa). [2023-12-16 17:21:55,164 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:21:55,166 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:21:55,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:21:55 BoogieIcfgContainer [2023-12-16 17:21:55,177 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:21:55,178 INFO L158 Benchmark]: Toolchain (without parser) took 68107.52ms. Allocated memory was 306.2MB in the beginning and 3.6GB in the end (delta: 3.3GB). Free memory was 259.6MB in the beginning and 2.7GB in the end (delta: -2.4GB). Peak memory consumption was 846.8MB. Max. memory is 8.0GB. [2023-12-16 17:21:55,178 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 206.6MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:21:55,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.89ms. Allocated memory is still 306.2MB. Free memory was 259.6MB in the beginning and 262.0MB in the end (delta: -2.4MB). Peak memory consumption was 62.6MB. Max. memory is 8.0GB. [2023-12-16 17:21:55,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.41ms. Allocated memory is still 306.2MB. Free memory was 262.0MB in the beginning and 257.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 17:21:55,178 INFO L158 Benchmark]: Boogie Preprocessor took 108.86ms. Allocated memory is still 306.2MB. Free memory was 257.3MB in the beginning and 248.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 17:21:55,178 INFO L158 Benchmark]: RCFGBuilder took 1234.89ms. Allocated memory is still 306.2MB. Free memory was 248.9MB in the beginning and 216.5MB in the end (delta: 32.4MB). Peak memory consumption was 92.7MB. Max. memory is 8.0GB. [2023-12-16 17:21:55,178 INFO L158 Benchmark]: TraceAbstraction took 65912.41ms. Allocated memory was 306.2MB in the beginning and 3.6GB in the end (delta: 3.3GB). Free memory was 216.0MB in the beginning and 2.7GB in the end (delta: -2.5GB). Peak memory consumption was 802.8MB. Max. memory is 8.0GB. [2023-12-16 17:21:55,179 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 206.6MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 763.89ms. Allocated memory is still 306.2MB. Free memory was 259.6MB in the beginning and 262.0MB in the end (delta: -2.4MB). Peak memory consumption was 62.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 83.41ms. Allocated memory is still 306.2MB. Free memory was 262.0MB in the beginning and 257.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.86ms. Allocated memory is still 306.2MB. Free memory was 257.3MB in the beginning and 248.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1234.89ms. Allocated memory is still 306.2MB. Free memory was 248.9MB in the beginning and 216.5MB in the end (delta: 32.4MB). Peak memory consumption was 92.7MB. Max. memory is 8.0GB. * TraceAbstraction took 65912.41ms. Allocated memory was 306.2MB in the beginning and 3.6GB in the end (delta: 3.3GB). Free memory was 216.0MB in the beginning and 2.7GB in the end (delta: -2.5GB). Peak memory consumption was 802.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] - GenericResultAtLocation [Line: 86]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [86] - GenericResultAtLocation [Line: 452]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [452] - GenericResultAtLocation [Line: 553]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [553] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] - GenericResultAtLocation [Line: 916]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [916] - GenericResultAtLocation [Line: 1099]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1099] - GenericResultAtLocation [Line: 1770]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1770] - GenericResultAtLocation [Line: 1783]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1783] - GenericResultAtLocation [Line: 1903]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1903] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 558]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 558). Cancelled while NwaCegarLoop was constructing difference of abstraction (34776states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (6902 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 527 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.9s, OverallIterations: 35, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 36.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24363 SdHoareTripleChecker+Valid, 27.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23643 mSDsluCounter, 109772 SdHoareTripleChecker+Invalid, 22.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84773 mSDsCounter, 5398 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40061 IncrementalHoareTripleChecker+Invalid, 45459 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5398 mSolverCounterUnsat, 24999 mSDtfsCounter, 40061 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4020 GetRequests, 3771 SyntacticMatches, 0 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34776occurred in iteration=34, InterpolantAutomatonStates: 262, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.0s AutomataMinimizationTime, 34 MinimizatonAttempts, 4454 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.8s SsaConstructionTime, 6.5s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 3790 NumberOfCodeBlocks, 3790 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 3889 ConstructedInterpolants, 0 QuantifiedInterpolants, 7494 SizeOfPredicates, 79 NumberOfNonLiveVariables, 32397 ConjunctsInSsa, 247 ConjunctsInUnsatCore, 36 InterpolantComputations, 34 PerfectInterpolantSequences, 589/599 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown