/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:36:43,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:36:43,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:36:43,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:36:43,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:36:43,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:36:43,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:36:43,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:36:43,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:36:43,501 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:36:43,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:36:43,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:36:43,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:36:43,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:36:43,503 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:36:43,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:36:43,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:36:43,504 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:36:43,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:36:43,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:36:43,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:36:43,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:36:43,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:36:43,513 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:36:43,513 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:36:43,513 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:36:43,513 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:36:43,513 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:36:43,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:36:43,514 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:36:43,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:36:43,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:36:43,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:36:43,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:36:43,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:36:43,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:36:43,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:36:43,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:36:43,516 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:36:43,516 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:36:43,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:36:43,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:36:43,516 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:36:43,516 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:36:43,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:36:43,517 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:36:43,517 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:36:43,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:36:43,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:36:43,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:36:43,674 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:36:43,674 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:36:43,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product30.cil.c [2023-12-25 05:36:44,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:36:45,100 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:36:45,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product30.cil.c [2023-12-25 05:36:45,124 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bac430c6/0faccb8739f44e2d846f3f7c82405ad8/FLAGc5826cb33 [2023-12-25 05:36:45,136 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bac430c6/0faccb8739f44e2d846f3f7c82405ad8 [2023-12-25 05:36:45,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:36:45,140 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:36:45,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:36:45,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:36:45,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:36:45,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:45,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618831b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45, skipping insertion in model container [2023-12-25 05:36:45,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:45,214 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:36:45,451 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product30.cil.c[11768,11781] [2023-12-25 05:36:45,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:36:45,653 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:36:45,665 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:36:45,687 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product30.cil.c[11768,11781] [2023-12-25 05:36:45,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:36:45,795 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:36:45,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-25 05:36:45,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [414] [2023-12-25 05:36:45,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [452] [2023-12-25 05:36:45,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [461] [2023-12-25 05:36:45,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [626] [2023-12-25 05:36:45,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [640] [2023-12-25 05:36:45,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [739] [2023-12-25 05:36:45,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [859] [2023-12-25 05:36:45,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2444] [2023-12-25 05:36:45,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3105] [2023-12-25 05:36:45,833 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product30.cil.c[11768,11781] [2023-12-25 05:36:45,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:36:45,906 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:36:45,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45 WrapperNode [2023-12-25 05:36:45,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:36:45,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:36:45,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:36:45,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:36:45,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:45,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:45,995 INFO L138 Inliner]: procedures = 97, calls = 344, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 824 [2023-12-25 05:36:45,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:36:45,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:36:45,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:36:45,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:36:46,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,061 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:36:46,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:36:46,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:36:46,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:36:46,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:36:46,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (1/1) ... [2023-12-25 05:36:46,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:36:46,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:36:46,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-25 05:36:46,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-25 05:36:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:36:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:36:46,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:36:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:36:46,165 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:36:46,165 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:36:46,165 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:36:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:36:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:36:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:36:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:36:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:36:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:36:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:36:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:36:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:36:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:36:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:36:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:36:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:36:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:36:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:36:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:36:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:36:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:36:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:36:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:36:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:36:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:36:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:36:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:36:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:36:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:36:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:36:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:36:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:36:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-12-25 05:36:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-12-25 05:36:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:36:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:36:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:36:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:36:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:36:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:36:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:36:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:36:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2023-12-25 05:36:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2023-12-25 05:36:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:36:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:36:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:36:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:36:46,309 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:36:46,311 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:36:47,159 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:36:47,239 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:36:47,240 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:36:47,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:36:47 BoogieIcfgContainer [2023-12-25 05:36:47,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:36:47,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:36:47,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:36:47,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:36:47,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:36:45" (1/3) ... [2023-12-25 05:36:47,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287b00a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:36:47, skipping insertion in model container [2023-12-25 05:36:47,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:36:45" (2/3) ... [2023-12-25 05:36:47,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287b00a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:36:47, skipping insertion in model container [2023-12-25 05:36:47,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:36:47" (3/3) ... [2023-12-25 05:36:47,246 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product30.cil.c [2023-12-25 05:36:47,258 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:36:47,258 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:36:47,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:36:47,319 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;@4d1b9571, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:36:47,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:36:47,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 555 states, 431 states have (on average 1.7262180974477959) internal successors, (744), 454 states have internal predecessors, (744), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:36:47,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 05:36:47,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:47,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:47,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:47,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:47,355 INFO L85 PathProgramCache]: Analyzing trace with hash 984736199, now seen corresponding path program 1 times [2023-12-25 05:36:47,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:47,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32158096] [2023-12-25 05:36:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:47,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:47,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:47,417 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:47,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-25 05:36:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:47,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:36:47,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:47,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:47,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:47,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32158096] [2023-12-25 05:36:47,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32158096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:47,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:47,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:36:47,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305896195] [2023-12-25 05:36:47,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:47,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:36:47,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:47,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:36:47,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:36:47,815 INFO L87 Difference]: Start difference. First operand has 555 states, 431 states have (on average 1.7262180974477959) internal successors, (744), 454 states have internal predecessors, (744), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-25 05:36:47,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:47,901 INFO L93 Difference]: Finished difference Result 573 states and 963 transitions. [2023-12-25 05:36:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:36:47,904 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 52 [2023-12-25 05:36:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:47,920 INFO L225 Difference]: With dead ends: 573 [2023-12-25 05:36:47,920 INFO L226 Difference]: Without dead ends: 551 [2023-12-25 05:36:47,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:36:47,925 INFO L413 NwaCegarLoop]: 913 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, 913 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:47,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 913 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:36:47,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-25 05:36:47,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2023-12-25 05:36:47,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 429 states have (on average 1.7179487179487178) internal successors, (737), 450 states have internal predecessors, (737), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:47,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 924 transitions. [2023-12-25 05:36:47,991 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 924 transitions. Word has length 52 [2023-12-25 05:36:47,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:47,992 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 924 transitions. [2023-12-25 05:36:47,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-25 05:36:47,993 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 924 transitions. [2023-12-25 05:36:47,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 05:36:47,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:47,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:48,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:48,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:48,205 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:48,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:48,206 INFO L85 PathProgramCache]: Analyzing trace with hash -117254675, now seen corresponding path program 1 times [2023-12-25 05:36:48,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:48,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669765948] [2023-12-25 05:36:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:48,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:48,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:48,210 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:48,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 05:36:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:48,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:48,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:48,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:48,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669765948] [2023-12-25 05:36:48,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669765948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:48,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:48,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:48,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943871252] [2023-12-25 05:36:48,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:48,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:48,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:48,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:48,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:48,483 INFO L87 Difference]: Start difference. First operand 551 states and 924 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:48,584 INFO L93 Difference]: Finished difference Result 1090 states and 1830 transitions. [2023-12-25 05:36:48,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:48,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-12-25 05:36:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:48,588 INFO L225 Difference]: With dead ends: 1090 [2023-12-25 05:36:48,588 INFO L226 Difference]: Without dead ends: 551 [2023-12-25 05:36:48,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:48,593 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 14 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:48,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2689 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:48,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-25 05:36:48,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2023-12-25 05:36:48,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 429 states have (on average 1.7156177156177157) internal successors, (736), 450 states have internal predecessors, (736), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 923 transitions. [2023-12-25 05:36:48,618 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 923 transitions. Word has length 53 [2023-12-25 05:36:48,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:48,619 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 923 transitions. [2023-12-25 05:36:48,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:48,619 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 923 transitions. [2023-12-25 05:36:48,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 05:36:48,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:48,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:48,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:48,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:48,828 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:48,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:48,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1854082318, now seen corresponding path program 1 times [2023-12-25 05:36:48,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:48,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712662290] [2023-12-25 05:36:48,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:48,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:48,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:48,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:48,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 05:36:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:49,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:49,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:49,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:49,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:49,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712662290] [2023-12-25 05:36:49,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712662290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:49,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:49,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:49,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986467548] [2023-12-25 05:36:49,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:49,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:49,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:49,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:49,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:49,092 INFO L87 Difference]: Start difference. First operand 551 states and 923 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:49,186 INFO L93 Difference]: Finished difference Result 1090 states and 1829 transitions. [2023-12-25 05:36:49,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:49,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-12-25 05:36:49,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:49,191 INFO L225 Difference]: With dead ends: 1090 [2023-12-25 05:36:49,191 INFO L226 Difference]: Without dead ends: 551 [2023-12-25 05:36:49,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:49,196 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 12 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:49,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2689 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:49,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-25 05:36:49,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2023-12-25 05:36:49,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 429 states have (on average 1.7132867132867133) internal successors, (735), 450 states have internal predecessors, (735), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:49,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 922 transitions. [2023-12-25 05:36:49,226 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 922 transitions. Word has length 54 [2023-12-25 05:36:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:49,226 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 922 transitions. [2023-12-25 05:36:49,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:49,227 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 922 transitions. [2023-12-25 05:36:49,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-25 05:36:49,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:49,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:49,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:49,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:49,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:49,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:49,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2129810193, now seen corresponding path program 1 times [2023-12-25 05:36:49,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:49,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567185] [2023-12-25 05:36:49,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:49,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:49,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:49,446 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:49,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-25 05:36:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:49,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:49,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:49,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:49,760 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:49,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:49,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567185] [2023-12-25 05:36:49,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:49,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:49,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:49,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194897402] [2023-12-25 05:36:49,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:49,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:49,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:49,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:49,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:49,761 INFO L87 Difference]: Start difference. First operand 551 states and 922 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:49,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:49,831 INFO L93 Difference]: Finished difference Result 1090 states and 1828 transitions. [2023-12-25 05:36:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:49,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-12-25 05:36:49,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:49,835 INFO L225 Difference]: With dead ends: 1090 [2023-12-25 05:36:49,835 INFO L226 Difference]: Without dead ends: 551 [2023-12-25 05:36:49,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:49,837 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 10 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:49,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2689 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:36:49,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-25 05:36:49,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2023-12-25 05:36:49,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 429 states have (on average 1.710955710955711) internal successors, (734), 450 states have internal predecessors, (734), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 921 transitions. [2023-12-25 05:36:49,851 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 921 transitions. Word has length 55 [2023-12-25 05:36:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:49,851 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 921 transitions. [2023-12-25 05:36:49,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:49,852 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 921 transitions. [2023-12-25 05:36:49,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:36:49,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:49,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:49,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:50,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:50,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:50,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:50,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1381262962, now seen corresponding path program 1 times [2023-12-25 05:36:50,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:50,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186636226] [2023-12-25 05:36:50,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:50,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:50,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:50,081 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:50,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-25 05:36:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:50,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:50,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:50,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:50,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:50,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:50,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186636226] [2023-12-25 05:36:50,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186636226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:50,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:50,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:50,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294757758] [2023-12-25 05:36:50,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:50,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:50,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:50,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:50,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:50,331 INFO L87 Difference]: Start difference. First operand 551 states and 921 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:50,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:50,441 INFO L93 Difference]: Finished difference Result 1090 states and 1827 transitions. [2023-12-25 05:36:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:50,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-25 05:36:50,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:50,444 INFO L225 Difference]: With dead ends: 1090 [2023-12-25 05:36:50,444 INFO L226 Difference]: Without dead ends: 551 [2023-12-25 05:36:50,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:50,447 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 8 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:50,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2689 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:50,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-25 05:36:50,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2023-12-25 05:36:50,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 429 states have (on average 1.7086247086247086) internal successors, (733), 450 states have internal predecessors, (733), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:50,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 920 transitions. [2023-12-25 05:36:50,463 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 920 transitions. Word has length 56 [2023-12-25 05:36:50,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:50,463 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 920 transitions. [2023-12-25 05:36:50,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 920 transitions. [2023-12-25 05:36:50,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:36:50,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:50,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:50,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:50,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:50,671 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:50,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:50,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1055041483, now seen corresponding path program 1 times [2023-12-25 05:36:50,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:50,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894108002] [2023-12-25 05:36:50,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:50,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:50,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:50,673 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:50,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 05:36:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:50,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:50,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:50,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:50,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:50,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894108002] [2023-12-25 05:36:50,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894108002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:50,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:50,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:50,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362707648] [2023-12-25 05:36:50,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:50,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:50,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:50,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:50,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:50,948 INFO L87 Difference]: Start difference. First operand 551 states and 920 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:51,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:51,030 INFO L93 Difference]: Finished difference Result 1090 states and 1826 transitions. [2023-12-25 05:36:51,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:51,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-25 05:36:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:51,034 INFO L225 Difference]: With dead ends: 1090 [2023-12-25 05:36:51,035 INFO L226 Difference]: Without dead ends: 551 [2023-12-25 05:36:51,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:51,038 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 6 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:51,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2689 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:51,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-12-25 05:36:51,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2023-12-25 05:36:51,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 429 states have (on average 1.7062937062937062) internal successors, (732), 450 states have internal predecessors, (732), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:51,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 919 transitions. [2023-12-25 05:36:51,069 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 919 transitions. Word has length 57 [2023-12-25 05:36:51,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:51,069 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 919 transitions. [2023-12-25 05:36:51,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:51,070 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 919 transitions. [2023-12-25 05:36:51,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:36:51,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:51,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:51,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:51,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:51,280 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:51,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:51,280 INFO L85 PathProgramCache]: Analyzing trace with hash 22755286, now seen corresponding path program 1 times [2023-12-25 05:36:51,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:51,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832312878] [2023-12-25 05:36:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:51,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:51,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:51,282 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:51,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-25 05:36:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:51,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:36:51,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:51,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:51,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:51,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832312878] [2023-12-25 05:36:51,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832312878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:51,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:51,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:36:51,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762717610] [2023-12-25 05:36:51,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:51,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:36:51,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:51,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:36:51,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:51,575 INFO L87 Difference]: Start difference. First operand 551 states and 919 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:36:51,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:51,748 INFO L93 Difference]: Finished difference Result 1056 states and 1758 transitions. [2023-12-25 05:36:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:36:51,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2023-12-25 05:36:51,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:51,752 INFO L225 Difference]: With dead ends: 1056 [2023-12-25 05:36:51,752 INFO L226 Difference]: Without dead ends: 565 [2023-12-25 05:36:51,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:51,755 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 115 mSDsluCounter, 4385 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5280 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:51,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5280 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:51,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-12-25 05:36:51,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 563. [2023-12-25 05:36:51,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 438 states have (on average 1.7031963470319635) internal successors, (746), 461 states have internal predecessors, (746), 97 states have call successors, (97), 26 states have call predecessors, (97), 27 states have return successors, (94), 89 states have call predecessors, (94), 92 states have call successors, (94) [2023-12-25 05:36:51,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 937 transitions. [2023-12-25 05:36:51,772 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 937 transitions. Word has length 58 [2023-12-25 05:36:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:51,773 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 937 transitions. [2023-12-25 05:36:51,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:36:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 937 transitions. [2023-12-25 05:36:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:36:51,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:51,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:51,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-25 05:36:51,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:51,983 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:51,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:51,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1993694743, now seen corresponding path program 1 times [2023-12-25 05:36:51,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:51,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100757257] [2023-12-25 05:36:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:51,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:51,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:51,986 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:52,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-25 05:36:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:52,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:52,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:52,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:52,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:52,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:52,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100757257] [2023-12-25 05:36:52,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100757257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:52,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:52,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:52,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385489435] [2023-12-25 05:36:52,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:52,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:52,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:52,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:52,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:52,278 INFO L87 Difference]: Start difference. First operand 563 states and 937 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:52,359 INFO L93 Difference]: Finished difference Result 1106 states and 1850 transitions. [2023-12-25 05:36:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:52,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-12-25 05:36:52,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:52,363 INFO L225 Difference]: With dead ends: 1106 [2023-12-25 05:36:52,363 INFO L226 Difference]: Without dead ends: 545 [2023-12-25 05:36:52,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:52,366 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 3 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:52,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2690 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-25 05:36:52,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-12-25 05:36:52,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 423 states have (on average 1.6973995271867612) internal successors, (718), 444 states have internal predecessors, (718), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:52,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 905 transitions. [2023-12-25 05:36:52,381 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 905 transitions. Word has length 58 [2023-12-25 05:36:52,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:52,382 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 905 transitions. [2023-12-25 05:36:52,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:52,382 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 905 transitions. [2023-12-25 05:36:52,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:36:52,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:52,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:52,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:52,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:52,591 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:52,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:52,592 INFO L85 PathProgramCache]: Analyzing trace with hash -184686800, now seen corresponding path program 1 times [2023-12-25 05:36:52,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:52,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606347726] [2023-12-25 05:36:52,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:52,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:52,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:52,594 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:52,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 05:36:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:52,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:52,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:52,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:52,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:52,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606347726] [2023-12-25 05:36:52,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606347726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:52,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:52,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:52,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103337952] [2023-12-25 05:36:52,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:52,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:52,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:52,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:52,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:52,841 INFO L87 Difference]: Start difference. First operand 545 states and 905 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:52,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:52,969 INFO L93 Difference]: Finished difference Result 1044 states and 1736 transitions. [2023-12-25 05:36:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:52,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-12-25 05:36:52,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:52,972 INFO L225 Difference]: With dead ends: 1044 [2023-12-25 05:36:52,972 INFO L226 Difference]: Without dead ends: 545 [2023-12-25 05:36:52,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:52,974 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 88 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:52,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2505 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-25 05:36:52,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-12-25 05:36:52,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 423 states have (on average 1.6879432624113475) internal successors, (714), 444 states have internal predecessors, (714), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 901 transitions. [2023-12-25 05:36:52,987 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 901 transitions. Word has length 59 [2023-12-25 05:36:52,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:52,987 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 901 transitions. [2023-12-25 05:36:52,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 901 transitions. [2023-12-25 05:36:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 05:36:52,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:52,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:52,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:53,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:53,196 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:53,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash 768985427, now seen corresponding path program 1 times [2023-12-25 05:36:53,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:53,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165677971] [2023-12-25 05:36:53,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:53,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:53,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:53,214 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:53,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-25 05:36:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:53,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:53,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:53,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:53,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:53,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:53,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165677971] [2023-12-25 05:36:53,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165677971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:53,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:53,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:53,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116049334] [2023-12-25 05:36:53,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:53,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:53,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:53,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:53,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:53,468 INFO L87 Difference]: Start difference. First operand 545 states and 901 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:53,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:53,580 INFO L93 Difference]: Finished difference Result 1044 states and 1732 transitions. [2023-12-25 05:36:53,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:53,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-25 05:36:53,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:53,586 INFO L225 Difference]: With dead ends: 1044 [2023-12-25 05:36:53,586 INFO L226 Difference]: Without dead ends: 545 [2023-12-25 05:36:53,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:53,588 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 83 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:53,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2505 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:53,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-25 05:36:53,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-12-25 05:36:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 423 states have (on average 1.6784869976359338) internal successors, (710), 444 states have internal predecessors, (710), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 897 transitions. [2023-12-25 05:36:53,601 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 897 transitions. Word has length 60 [2023-12-25 05:36:53,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:53,602 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 897 transitions. [2023-12-25 05:36:53,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 897 transitions. [2023-12-25 05:36:53,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-25 05:36:53,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:53,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:53,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:53,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:53,810 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:53,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:53,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1013981205, now seen corresponding path program 1 times [2023-12-25 05:36:53,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:53,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454414080] [2023-12-25 05:36:53,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:53,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:53,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:53,838 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:53,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-25 05:36:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:54,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:54,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:54,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:54,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:54,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454414080] [2023-12-25 05:36:54,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454414080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:54,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:54,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:54,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935295331] [2023-12-25 05:36:54,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:54,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:54,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:54,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:54,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:54,078 INFO L87 Difference]: Start difference. First operand 545 states and 897 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:54,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:54,182 INFO L93 Difference]: Finished difference Result 1044 states and 1728 transitions. [2023-12-25 05:36:54,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:54,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-25 05:36:54,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:54,185 INFO L225 Difference]: With dead ends: 1044 [2023-12-25 05:36:54,185 INFO L226 Difference]: Without dead ends: 545 [2023-12-25 05:36:54,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:54,187 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 78 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:54,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2505 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:54,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-25 05:36:54,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-12-25 05:36:54,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 423 states have (on average 1.66903073286052) internal successors, (706), 444 states have internal predecessors, (706), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 893 transitions. [2023-12-25 05:36:54,198 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 893 transitions. Word has length 61 [2023-12-25 05:36:54,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:54,198 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 893 transitions. [2023-12-25 05:36:54,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 893 transitions. [2023-12-25 05:36:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-25 05:36:54,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:54,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:54,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:54,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:54,405 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:54,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:54,406 INFO L85 PathProgramCache]: Analyzing trace with hash -390802581, now seen corresponding path program 1 times [2023-12-25 05:36:54,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:54,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694811196] [2023-12-25 05:36:54,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:54,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:54,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:54,422 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:54,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:36:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:54,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:36:54,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:54,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:54,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:54,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:54,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694811196] [2023-12-25 05:36:54,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694811196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:54,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:54,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:36:54,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952460925] [2023-12-25 05:36:54,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:54,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:36:54,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:54,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:36:54,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:54,690 INFO L87 Difference]: Start difference. First operand 545 states and 893 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:36:54,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:54,821 INFO L93 Difference]: Finished difference Result 1044 states and 1724 transitions. [2023-12-25 05:36:54,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:36:54,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 61 [2023-12-25 05:36:54,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:54,824 INFO L225 Difference]: With dead ends: 1044 [2023-12-25 05:36:54,824 INFO L226 Difference]: Without dead ends: 524 [2023-12-25 05:36:54,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:54,826 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 108 mSDsluCounter, 4258 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 5126 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:54,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 5126 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:54,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-12-25 05:36:54,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2023-12-25 05:36:54,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 402 states have (on average 1.671641791044776) internal successors, (672), 423 states have internal predecessors, (672), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:54,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 859 transitions. [2023-12-25 05:36:54,838 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 859 transitions. Word has length 61 [2023-12-25 05:36:54,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:54,838 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 859 transitions. [2023-12-25 05:36:54,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:36:54,838 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 859 transitions. [2023-12-25 05:36:54,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 05:36:54,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:54,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:54,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:55,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:55,046 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:55,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:55,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1733406546, now seen corresponding path program 1 times [2023-12-25 05:36:55,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:55,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874330836] [2023-12-25 05:36:55,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:55,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:55,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:55,048 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:55,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:36:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:55,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:55,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:55,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:55,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:55,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:55,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874330836] [2023-12-25 05:36:55,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874330836] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:55,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:55,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:55,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608465645] [2023-12-25 05:36:55,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:55,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:55,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:55,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:55,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:55,305 INFO L87 Difference]: Start difference. First operand 524 states and 859 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:55,374 INFO L93 Difference]: Finished difference Result 1023 states and 1690 transitions. [2023-12-25 05:36:55,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:55,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-25 05:36:55,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:55,377 INFO L225 Difference]: With dead ends: 1023 [2023-12-25 05:36:55,377 INFO L226 Difference]: Without dead ends: 524 [2023-12-25 05:36:55,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:55,380 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 39 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:55,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2491 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:55,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-12-25 05:36:55,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2023-12-25 05:36:55,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 402 states have (on average 1.6691542288557213) internal successors, (671), 423 states have internal predecessors, (671), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:55,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 858 transitions. [2023-12-25 05:36:55,390 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 858 transitions. Word has length 62 [2023-12-25 05:36:55,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:55,390 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 858 transitions. [2023-12-25 05:36:55,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:55,390 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 858 transitions. [2023-12-25 05:36:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 05:36:55,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:55,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:55,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:55,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:55,597 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:55,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:55,597 INFO L85 PathProgramCache]: Analyzing trace with hash 452177062, now seen corresponding path program 1 times [2023-12-25 05:36:55,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:55,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566416505] [2023-12-25 05:36:55,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:55,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:55,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:55,600 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:55,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 05:36:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:55,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:36:55,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:55,846 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:55,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:55,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566416505] [2023-12-25 05:36:55,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566416505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:55,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:55,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:36:55,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711749041] [2023-12-25 05:36:55,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:55,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:36:55,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:55,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:36:55,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:36:55,856 INFO L87 Difference]: Start difference. First operand 524 states and 858 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:55,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:55,952 INFO L93 Difference]: Finished difference Result 1023 states and 1689 transitions. [2023-12-25 05:36:55,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:36:55,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2023-12-25 05:36:55,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:55,955 INFO L225 Difference]: With dead ends: 1023 [2023-12-25 05:36:55,955 INFO L226 Difference]: Without dead ends: 524 [2023-12-25 05:36:55,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:36:55,957 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 37 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:55,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2491 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:55,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-12-25 05:36:55,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2023-12-25 05:36:55,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 402 states have (on average 1.6666666666666667) internal successors, (670), 423 states have internal predecessors, (670), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 857 transitions. [2023-12-25 05:36:55,977 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 857 transitions. Word has length 63 [2023-12-25 05:36:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:55,978 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 857 transitions. [2023-12-25 05:36:55,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:36:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 857 transitions. [2023-12-25 05:36:55,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 05:36:55,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:55,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:55,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:56,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:56,186 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:56,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1796242423, now seen corresponding path program 1 times [2023-12-25 05:36:56,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:56,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832974498] [2023-12-25 05:36:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:56,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:56,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:56,188 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:56,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-25 05:36:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:56,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:36:56,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:56,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:56,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:56,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:56,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832974498] [2023-12-25 05:36:56,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832974498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:56,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:56,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:36:56,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29037214] [2023-12-25 05:36:56,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:56,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:36:56,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:56,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:36:56,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:36:56,531 INFO L87 Difference]: Start difference. First operand 524 states and 857 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:36:56,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:36:56,705 INFO L93 Difference]: Finished difference Result 1017 states and 1677 transitions. [2023-12-25 05:36:56,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:36:56,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-12-25 05:36:56,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:36:56,708 INFO L225 Difference]: With dead ends: 1017 [2023-12-25 05:36:56,708 INFO L226 Difference]: Without dead ends: 524 [2023-12-25 05:36:56,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:36:56,711 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 25 mSDsluCounter, 4956 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5785 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:36:56,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5785 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:36:56,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-12-25 05:36:56,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2023-12-25 05:36:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 402 states have (on average 1.664179104477612) internal successors, (669), 423 states have internal predecessors, (669), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-25 05:36:56,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 856 transitions. [2023-12-25 05:36:56,722 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 856 transitions. Word has length 64 [2023-12-25 05:36:56,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:36:56,722 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 856 transitions. [2023-12-25 05:36:56,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:36:56,723 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 856 transitions. [2023-12-25 05:36:56,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 05:36:56,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:36:56,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:36:56,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:36:56,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:56,931 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:36:56,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:36:56,931 INFO L85 PathProgramCache]: Analyzing trace with hash 927160977, now seen corresponding path program 1 times [2023-12-25 05:36:56,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:36:56,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480093257] [2023-12-25 05:36:56,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:36:56,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:36:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:36:56,940 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:36:56,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-25 05:36:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:36:57,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:36:57,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:36:57,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:36:57,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:36:57,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:36:57,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480093257] [2023-12-25 05:36:57,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480093257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:36:57,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:36:57,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:36:57,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793941849] [2023-12-25 05:36:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:36:57,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:36:57,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:36:57,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:36:57,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:36:57,536 INFO L87 Difference]: Start difference. First operand 524 states and 856 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:37:00,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:00,610 INFO L93 Difference]: Finished difference Result 2073 states and 3470 transitions. [2023-12-25 05:37:00,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:37:00,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2023-12-25 05:37:00,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:00,618 INFO L225 Difference]: With dead ends: 2073 [2023-12-25 05:37:00,618 INFO L226 Difference]: Without dead ends: 1587 [2023-12-25 05:37:00,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:37:00,620 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 3867 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 3176 mSolverCounterSat, 714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4040 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 3890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 714 IncrementalHoareTripleChecker+Valid, 3176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:00,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4040 Valid, 1365 Invalid, 3890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [714 Valid, 3176 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-25 05:37:00,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2023-12-25 05:37:00,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1388. [2023-12-25 05:37:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1086 states have (on average 1.6961325966850829) internal successors, (1842), 1125 states have internal predecessors, (1842), 240 states have call successors, (240), 60 states have call predecessors, (240), 61 states have return successors, (245), 217 states have call predecessors, (245), 235 states have call successors, (245) [2023-12-25 05:37:00,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 2327 transitions. [2023-12-25 05:37:00,705 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 2327 transitions. Word has length 65 [2023-12-25 05:37:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:00,706 INFO L495 AbstractCegarLoop]: Abstraction has 1388 states and 2327 transitions. [2023-12-25 05:37:00,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:37:00,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 2327 transitions. [2023-12-25 05:37:00,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:37:00,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:00,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:00,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 05:37:00,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:00,916 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:00,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:00,916 INFO L85 PathProgramCache]: Analyzing trace with hash -321992703, now seen corresponding path program 1 times [2023-12-25 05:37:00,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:00,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245216247] [2023-12-25 05:37:00,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:00,917 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:00,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:00,921 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:00,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-25 05:37:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:01,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:37:01,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:37:01,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:01,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:01,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245216247] [2023-12-25 05:37:01,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245216247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:01,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:01,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:37:01,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989536624] [2023-12-25 05:37:01,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:01,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:37:01,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:01,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:37:01,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:37:01,392 INFO L87 Difference]: Start difference. First operand 1388 states and 2327 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:37:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:05,148 INFO L93 Difference]: Finished difference Result 4202 states and 7049 transitions. [2023-12-25 05:37:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:37:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 103 [2023-12-25 05:37:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:05,160 INFO L225 Difference]: With dead ends: 4202 [2023-12-25 05:37:05,160 INFO L226 Difference]: Without dead ends: 2852 [2023-12-25 05:37:05,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-25 05:37:05,166 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 1927 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 5570 mSolverCounterSat, 598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 6168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 598 IncrementalHoareTripleChecker+Valid, 5570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:05,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 2292 Invalid, 6168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [598 Valid, 5570 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 05:37:05,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2023-12-25 05:37:05,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2678. [2023-12-25 05:37:05,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2678 states, 2012 states have (on average 1.6575546719681908) internal successors, (3335), 2098 states have internal predecessors, (3335), 539 states have call successors, (539), 108 states have call predecessors, (539), 126 states have return successors, (569), 504 states have call predecessors, (569), 534 states have call successors, (569) [2023-12-25 05:37:05,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 4443 transitions. [2023-12-25 05:37:05,327 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 4443 transitions. Word has length 103 [2023-12-25 05:37:05,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:05,328 INFO L495 AbstractCegarLoop]: Abstraction has 2678 states and 4443 transitions. [2023-12-25 05:37:05,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:37:05,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 4443 transitions. [2023-12-25 05:37:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:37:05,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:05,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:05,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-25 05:37:05,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:05,541 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:05,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:05,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2136778237, now seen corresponding path program 1 times [2023-12-25 05:37:05,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:05,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091141007] [2023-12-25 05:37:05,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:05,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:05,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:05,543 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:05,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-25 05:37:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:05,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 05:37:05,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:06,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:37:06,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:06,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:06,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091141007] [2023-12-25 05:37:06,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091141007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:06,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:06,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:37:06,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118739376] [2023-12-25 05:37:06,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:06,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:37:06,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:06,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:37:06,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:37:06,189 INFO L87 Difference]: Start difference. First operand 2678 states and 4443 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:37:07,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:07,972 INFO L93 Difference]: Finished difference Result 5357 states and 9009 transitions. [2023-12-25 05:37:07,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:37:07,973 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), 5 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 104 [2023-12-25 05:37:07,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:07,984 INFO L225 Difference]: With dead ends: 5357 [2023-12-25 05:37:07,984 INFO L226 Difference]: Without dead ends: 2717 [2023-12-25 05:37:07,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-25 05:37:07,993 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1315 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 3400 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 3793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 3400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:07,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1721 Invalid, 3793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 3400 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 05:37:07,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2023-12-25 05:37:08,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2706. [2023-12-25 05:37:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 2033 states have (on average 1.6507624200688638) internal successors, (3356), 2119 states have internal predecessors, (3356), 539 states have call successors, (539), 108 states have call predecessors, (539), 133 states have return successors, (646), 511 states have call predecessors, (646), 534 states have call successors, (646) [2023-12-25 05:37:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 4541 transitions. [2023-12-25 05:37:08,127 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 4541 transitions. Word has length 104 [2023-12-25 05:37:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:08,127 INFO L495 AbstractCegarLoop]: Abstraction has 2706 states and 4541 transitions. [2023-12-25 05:37:08,127 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), 5 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:37:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 4541 transitions. [2023-12-25 05:37:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-25 05:37:08,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:08,130 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:08,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:37:08,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:08,340 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:08,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:08,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1601863931, now seen corresponding path program 1 times [2023-12-25 05:37:08,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:08,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683105380] [2023-12-25 05:37:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:08,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:08,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:08,342 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:08,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 05:37:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:08,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:37:08,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:37:09,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:09,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:09,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683105380] [2023-12-25 05:37:09,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683105380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:09,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:09,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:37:09,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797708512] [2023-12-25 05:37:09,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:09,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:37:09,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:09,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:37:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:37:09,020 INFO L87 Difference]: Start difference. First operand 2706 states and 4541 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:37:12,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:12,863 INFO L93 Difference]: Finished difference Result 6567 states and 11133 transitions. [2023-12-25 05:37:12,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:37:12,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 106 [2023-12-25 05:37:12,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:12,881 INFO L225 Difference]: With dead ends: 6567 [2023-12-25 05:37:12,881 INFO L226 Difference]: Without dead ends: 3899 [2023-12-25 05:37:12,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:37:12,890 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 4529 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 4196 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 5052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 4196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:12,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4694 Valid, 1715 Invalid, 5052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 4196 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 05:37:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3899 states. [2023-12-25 05:37:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3899 to 3526. [2023-12-25 05:37:13,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 2660 states have (on average 1.6590225563909775) internal successors, (4413), 2774 states have internal predecessors, (4413), 692 states have call successors, (692), 144 states have call predecessors, (692), 173 states have return successors, (815), 640 states have call predecessors, (815), 687 states have call successors, (815) [2023-12-25 05:37:13,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5920 transitions. [2023-12-25 05:37:13,114 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 5920 transitions. Word has length 106 [2023-12-25 05:37:13,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:13,115 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 5920 transitions. [2023-12-25 05:37:13,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:37:13,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 5920 transitions. [2023-12-25 05:37:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:37:13,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:13,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:13,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:37:13,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:13,327 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:13,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:13,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2066331734, now seen corresponding path program 1 times [2023-12-25 05:37:13,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:13,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946020595] [2023-12-25 05:37:13,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:13,328 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:13,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:13,329 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:13,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:37:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:13,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:37:13,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:37:13,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:13,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:13,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946020595] [2023-12-25 05:37:13,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946020595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:13,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:13,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:37:13,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576952769] [2023-12-25 05:37:13,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:13,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:37:13,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:13,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:37:13,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:37:13,766 INFO L87 Difference]: Start difference. First operand 3526 states and 5920 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:37:17,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:17,231 INFO L93 Difference]: Finished difference Result 10822 states and 18622 transitions. [2023-12-25 05:37:17,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:37:17,232 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), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 105 [2023-12-25 05:37:17,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:17,286 INFO L225 Difference]: With dead ends: 10822 [2023-12-25 05:37:17,286 INFO L226 Difference]: Without dead ends: 7334 [2023-12-25 05:37:17,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:37:17,298 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 2743 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 4625 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 5351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 4625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:17,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 2178 Invalid, 5351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 4625 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 05:37:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7334 states. [2023-12-25 05:37:17,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7334 to 7082. [2023-12-25 05:37:17,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7082 states, 5329 states have (on average 1.6322011634452993) internal successors, (8698), 5570 states have internal predecessors, (8698), 1392 states have call successors, (1392), 319 states have call predecessors, (1392), 360 states have return successors, (1655), 1269 states have call predecessors, (1655), 1387 states have call successors, (1655) [2023-12-25 05:37:17,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7082 states to 7082 states and 11745 transitions. [2023-12-25 05:37:17,679 INFO L78 Accepts]: Start accepts. Automaton has 7082 states and 11745 transitions. Word has length 105 [2023-12-25 05:37:17,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:17,679 INFO L495 AbstractCegarLoop]: Abstraction has 7082 states and 11745 transitions. [2023-12-25 05:37:17,680 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), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-25 05:37:17,680 INFO L276 IsEmpty]: Start isEmpty. Operand 7082 states and 11745 transitions. [2023-12-25 05:37:17,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:37:17,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:17,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:17,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:37:17,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:17,894 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:17,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:17,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1073623737, now seen corresponding path program 1 times [2023-12-25 05:37:17,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:17,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238886577] [2023-12-25 05:37:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:17,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:17,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:17,901 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:17,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-25 05:37:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:18,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:37:18,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:18,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:37:18,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:18,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:18,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238886577] [2023-12-25 05:37:18,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238886577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:18,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:18,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:37:18,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410249160] [2023-12-25 05:37:18,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:18,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:37:18,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:18,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:37:18,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:37:18,436 INFO L87 Difference]: Start difference. First operand 7082 states and 11745 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:37:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:24,137 INFO L93 Difference]: Finished difference Result 20800 states and 35243 transitions. [2023-12-25 05:37:24,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:37:24,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 111 [2023-12-25 05:37:24,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:24,209 INFO L225 Difference]: With dead ends: 20800 [2023-12-25 05:37:24,209 INFO L226 Difference]: Without dead ends: 13720 [2023-12-25 05:37:24,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-25 05:37:24,236 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 2174 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 7191 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 7721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 7191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:24,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2303 Valid, 2880 Invalid, 7721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 7191 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-25 05:37:24,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13720 states. [2023-12-25 05:37:25,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13720 to 13296. [2023-12-25 05:37:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13296 states, 9725 states have (on average 1.6099742930591259) internal successors, (15657), 10264 states have internal predecessors, (15657), 2894 states have call successors, (2894), 538 states have call predecessors, (2894), 676 states have return successors, (3676), 2759 states have call predecessors, (3676), 2889 states have call successors, (3676) [2023-12-25 05:37:25,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13296 states to 13296 states and 22227 transitions. [2023-12-25 05:37:25,274 INFO L78 Accepts]: Start accepts. Automaton has 13296 states and 22227 transitions. Word has length 111 [2023-12-25 05:37:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:25,274 INFO L495 AbstractCegarLoop]: Abstraction has 13296 states and 22227 transitions. [2023-12-25 05:37:25,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:37:25,274 INFO L276 IsEmpty]: Start isEmpty. Operand 13296 states and 22227 transitions. [2023-12-25 05:37:25,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:37:25,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:25,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:25,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 05:37:25,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:25,487 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:25,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:25,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1470957703, now seen corresponding path program 1 times [2023-12-25 05:37:25,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:25,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094954796] [2023-12-25 05:37:25,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:25,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:25,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:25,491 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:25,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:37:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:25,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:37:25,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:37:25,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:25,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:25,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094954796] [2023-12-25 05:37:25,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094954796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:25,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:25,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:37:25,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334285985] [2023-12-25 05:37:25,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:25,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:37:25,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:25,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:37:25,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:37:25,963 INFO L87 Difference]: Start difference. First operand 13296 states and 22227 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:37:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:30,786 INFO L93 Difference]: Finished difference Result 41790 states and 72047 transitions. [2023-12-25 05:37:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:37:30,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 112 [2023-12-25 05:37:30,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:31,013 INFO L225 Difference]: With dead ends: 41790 [2023-12-25 05:37:31,013 INFO L226 Difference]: Without dead ends: 28535 [2023-12-25 05:37:31,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:37:31,058 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 2170 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 3271 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 3798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 3271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:31,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 1646 Invalid, 3798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 3271 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:37:31,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28535 states. [2023-12-25 05:37:33,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28535 to 28038. [2023-12-25 05:37:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28038 states, 19899 states have (on average 1.5950047741092517) internal successors, (31739), 21192 states have internal predecessors, (31739), 6757 states have call successors, (6757), 983 states have call predecessors, (6757), 1381 states have return successors, (9520), 6639 states have call predecessors, (9520), 6752 states have call successors, (9520) [2023-12-25 05:37:33,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28038 states to 28038 states and 48016 transitions. [2023-12-25 05:37:33,537 INFO L78 Accepts]: Start accepts. Automaton has 28038 states and 48016 transitions. Word has length 112 [2023-12-25 05:37:33,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:33,538 INFO L495 AbstractCegarLoop]: Abstraction has 28038 states and 48016 transitions. [2023-12-25 05:37:33,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:37:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 28038 states and 48016 transitions. [2023-12-25 05:37:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-25 05:37:33,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:33,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:33,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-25 05:37:33,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:33,752 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:33,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:33,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1246391914, now seen corresponding path program 1 times [2023-12-25 05:37:33,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:33,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696176630] [2023-12-25 05:37:33,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:33,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:33,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:33,769 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:33,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:37:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:34,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:37:34,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:34,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:37:34,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:34,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:34,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696176630] [2023-12-25 05:37:34,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696176630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:34,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:34,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:37:34,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994342476] [2023-12-25 05:37:34,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:34,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:37:34,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:34,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:37:34,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:37:34,293 INFO L87 Difference]: Start difference. First operand 28038 states and 48016 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:37:43,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:37:43,066 INFO L93 Difference]: Finished difference Result 93310 states and 166476 transitions. [2023-12-25 05:37:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:37:43,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 113 [2023-12-25 05:37:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:37:43,565 INFO L225 Difference]: With dead ends: 93310 [2023-12-25 05:37:43,566 INFO L226 Difference]: Without dead ends: 65315 [2023-12-25 05:37:43,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:37:43,697 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 2177 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 3280 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2306 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 3808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 3280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:37:43,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2306 Valid, 1667 Invalid, 3808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 3280 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:37:43,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65315 states. [2023-12-25 05:37:50,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65315 to 64551. [2023-12-25 05:37:50,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64551 states, 44552 states have (on average 1.5846875561142035) internal successors, (70601), 47804 states have internal predecessors, (70601), 16900 states have call successors, (16900), 1873 states have call predecessors, (16900), 3098 states have return successors, (27530), 17036 states have call predecessors, (27530), 16895 states have call successors, (27530) [2023-12-25 05:37:51,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64551 states to 64551 states and 115031 transitions. [2023-12-25 05:37:51,198 INFO L78 Accepts]: Start accepts. Automaton has 64551 states and 115031 transitions. Word has length 113 [2023-12-25 05:37:51,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:37:51,199 INFO L495 AbstractCegarLoop]: Abstraction has 64551 states and 115031 transitions. [2023-12-25 05:37:51,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:37:51,199 INFO L276 IsEmpty]: Start isEmpty. Operand 64551 states and 115031 transitions. [2023-12-25 05:37:51,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:37:51,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:37:51,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:37:51,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 05:37:51,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:51,415 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:37:51,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:37:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash -201588940, now seen corresponding path program 1 times [2023-12-25 05:37:51,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:37:51,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854741715] [2023-12-25 05:37:51,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:37:51,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:37:51,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:37:51,417 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:37:51,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 05:37:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:37:51,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:37:51,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:37:51,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:37:51,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:37:51,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:37:51,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854741715] [2023-12-25 05:37:51,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854741715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:37:51,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:37:51,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:37:51,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164889479] [2023-12-25 05:37:51,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:37:51,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:37:51,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:37:51,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:37:51,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:37:51,906 INFO L87 Difference]: Start difference. First operand 64551 states and 115031 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:38:13,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:38:13,446 INFO L93 Difference]: Finished difference Result 224485 states and 422069 transitions. [2023-12-25 05:38:13,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:38:13,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 5 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2023-12-25 05:38:13,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:38:15,426 INFO L225 Difference]: With dead ends: 224485 [2023-12-25 05:38:15,426 INFO L226 Difference]: Without dead ends: 159981 [2023-12-25 05:38:16,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:38:16,073 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 3279 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3409 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 3353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:38:16,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3409 Valid, 1381 Invalid, 3353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:38:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159981 states.