/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_spec2_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:32:16,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:32:16,807 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 05:32:16,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:32:16,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:32:16,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:32:16,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:32:16,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:32:16,858 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:32:16,862 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:32:16,863 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:32:16,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:32:16,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:32:16,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:32:16,866 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:32:16,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:32:16,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:32:16,867 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:32:16,867 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:32:16,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:32:16,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:32:16,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:32:16,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:32:16,868 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:32:16,868 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:32:16,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:32:16,869 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:32:16,869 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:32:16,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:32:16,869 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:32:16,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:32:16,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:32:16,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:32:16,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:32:16,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:32:16,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:32:16,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:32:16,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:32:16,872 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:32:16,872 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:32:16,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:32:16,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:32:16,872 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:32:16,872 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:32:16,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:32:16,873 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:32:16,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:32:17,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:32:17,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:32:17,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:32:17,113 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:32:17,113 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:32:17,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product30.cil.c [2023-12-25 05:32:18,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:32:18,481 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:32:18,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product30.cil.c [2023-12-25 05:32:18,502 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/692232a2b/c0eeba83816543ec95b0dc729c8b6fd5/FLAG90f3cfdf4 [2023-12-25 05:32:18,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/692232a2b/c0eeba83816543ec95b0dc729c8b6fd5 [2023-12-25 05:32:18,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:32:18,520 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:32:18,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:32:18,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:32:18,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:32:18,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:32:18" (1/1) ... [2023-12-25 05:32:18,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b91f443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:18, skipping insertion in model container [2023-12-25 05:32:18,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:32:18" (1/1) ... [2023-12-25 05:32:18,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:32:18,789 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_spec2_product30.cil.c[10611,10624] [2023-12-25 05:32:18,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:32:18,976 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:32:18,991 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:32:19,003 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_spec2_product30.cil.c[10611,10624] [2023-12-25 05:32:19,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:32:19,101 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:32:19,109 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2023-12-25 05:32:19,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2023-12-25 05:32:19,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [532] [2023-12-25 05:32:19,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [627] [2023-12-25 05:32:19,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [636] [2023-12-25 05:32:19,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1303] [2023-12-25 05:32:19,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1338] [2023-12-25 05:32:19,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [1350] [2023-12-25 05:32:19,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1533] [2023-12-25 05:32:19,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3112] [2023-12-25 05:32:19,121 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_spec2_product30.cil.c[10611,10624] [2023-12-25 05:32:19,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:32:19,217 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:32:19,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19 WrapperNode [2023-12-25 05:32:19,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:32:19,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:32:19,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:32:19,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:32:19,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,296 INFO L138 Inliner]: procedures = 97, calls = 347, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 868 [2023-12-25 05:32:19,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:32:19,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:32:19,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:32:19,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:32:19,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,317 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,369 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:32:19,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,414 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:32:19,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:32:19,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:32:19,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:32:19,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (1/1) ... [2023-12-25 05:32:19,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:32:19,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:32:19,479 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 05:32:19,487 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 05:32:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:32:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:32:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:32:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:32:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:32:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:32:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:32:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:32:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:32:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:32:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:32:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:32:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-25 05:32:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:32:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:32:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:32:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:32:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:32:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:32:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:32:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:32:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:32:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:32:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:32:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:32:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:32:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:32:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:32:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:32:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:32:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:32:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:32:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:32:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:32:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-25 05:32:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-25 05:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:32:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:32:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:32:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2023-12-25 05:32:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2023-12-25 05:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:32:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:32:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:32:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:32:19,664 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:32:19,665 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:32:20,677 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:32:20,792 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:32:20,792 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:32:20,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:32:20 BoogieIcfgContainer [2023-12-25 05:32:20,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:32:20,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:32:20,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:32:20,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:32:20,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:32:18" (1/3) ... [2023-12-25 05:32:20,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f16414a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:32:20, skipping insertion in model container [2023-12-25 05:32:20,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:32:19" (2/3) ... [2023-12-25 05:32:20,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f16414a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:32:20, skipping insertion in model container [2023-12-25 05:32:20,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:32:20" (3/3) ... [2023-12-25 05:32:20,799 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product30.cil.c [2023-12-25 05:32:20,812 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:32:20,812 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:32:20,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:32:20,857 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;@5857701b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:32:20,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:32:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 560 states, 435 states have (on average 1.7264367816091954) internal successors, (751), 458 states have internal predecessors, (751), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-25 05:32:20,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-25 05:32:20,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:20,875 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] [2023-12-25 05:32:20,876 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:20,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:20,880 INFO L85 PathProgramCache]: Analyzing trace with hash 506745133, now seen corresponding path program 1 times [2023-12-25 05:32:20,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:20,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412327663] [2023-12-25 05:32:20,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:20,891 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 05:32:20,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:20,894 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 05:32:20,963 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 05:32:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:21,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:32:21,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:21,327 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 05:32:21,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:21,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:21,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412327663] [2023-12-25 05:32:21,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412327663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:21,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:21,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:32:21,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591240504] [2023-12-25 05:32:21,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:21,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:32:21,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:21,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:32:21,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:32:21,385 INFO L87 Difference]: Start difference. First operand has 560 states, 435 states have (on average 1.7264367816091954) internal successors, (751), 458 states have internal predecessors, (751), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 05:32:21,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:21,508 INFO L93 Difference]: Finished difference Result 578 states and 974 transitions. [2023-12-25 05:32:21,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:32:21,511 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 50 [2023-12-25 05:32:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:21,535 INFO L225 Difference]: With dead ends: 578 [2023-12-25 05:32:21,536 INFO L226 Difference]: Without dead ends: 556 [2023-12-25 05:32:21,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 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 05:32:21,544 INFO L413 NwaCegarLoop]: 924 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, 924 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 05:32:21,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 924 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:32:21,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-25 05:32:21,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-12-25 05:32:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 433 states have (on average 1.71824480369515) internal successors, (744), 454 states have internal predecessors, (744), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:21,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 935 transitions. [2023-12-25 05:32:21,644 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 935 transitions. Word has length 50 [2023-12-25 05:32:21,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:21,646 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 935 transitions. [2023-12-25 05:32:21,646 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-25 05:32:21,646 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 935 transitions. [2023-12-25 05:32:21,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-25 05:32:21,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:21,654 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] [2023-12-25 05:32:21,665 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 05:32:21,865 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 05:32:21,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:21,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:21,867 INFO L85 PathProgramCache]: Analyzing trace with hash -836550207, now seen corresponding path program 1 times [2023-12-25 05:32:21,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:21,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088227045] [2023-12-25 05:32:21,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:21,868 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 05:32:21,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:21,870 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 05:32:21,872 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 05:32:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:22,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:22,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:22,195 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 05:32:22,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:22,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:22,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088227045] [2023-12-25 05:32:22,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088227045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:22,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:22,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:22,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178338191] [2023-12-25 05:32:22,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:22,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:22,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:22,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:22,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:22,198 INFO L87 Difference]: Start difference. First operand 556 states and 935 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:22,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:22,318 INFO L93 Difference]: Finished difference Result 1100 states and 1852 transitions. [2023-12-25 05:32:22,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:22,319 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2023-12-25 05:32:22,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:22,325 INFO L225 Difference]: With dead ends: 1100 [2023-12-25 05:32:22,325 INFO L226 Difference]: Without dead ends: 556 [2023-12-25 05:32:22,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 05:32:22,332 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 14 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2722 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 05:32:22,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2722 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:22,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-25 05:32:22,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-12-25 05:32:22,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 433 states have (on average 1.7159353348729791) internal successors, (743), 454 states have internal predecessors, (743), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 934 transitions. [2023-12-25 05:32:22,355 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 934 transitions. Word has length 51 [2023-12-25 05:32:22,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:22,355 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 934 transitions. [2023-12-25 05:32:22,355 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:22,355 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 934 transitions. [2023-12-25 05:32:22,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 05:32:22,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:22,357 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 05:32:22,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-25 05:32:22,581 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 05:32:22,583 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:22,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:22,583 INFO L85 PathProgramCache]: Analyzing trace with hash 570905032, now seen corresponding path program 1 times [2023-12-25 05:32:22,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:22,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029877731] [2023-12-25 05:32:22,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:22,587 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 05:32:22,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:22,588 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 05:32:22,589 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 05:32:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:22,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:22,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:22,857 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 05:32:22,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:22,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:22,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029877731] [2023-12-25 05:32:22,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029877731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:22,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:22,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:22,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430157467] [2023-12-25 05:32:22,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:22,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:22,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:22,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:22,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:22,858 INFO L87 Difference]: Start difference. First operand 556 states and 934 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:22,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:22,947 INFO L93 Difference]: Finished difference Result 1100 states and 1851 transitions. [2023-12-25 05:32:22,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:22,948 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2023-12-25 05:32:22,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:22,952 INFO L225 Difference]: With dead ends: 1100 [2023-12-25 05:32:22,952 INFO L226 Difference]: Without dead ends: 556 [2023-12-25 05:32:22,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 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 05:32:22,956 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 12 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2722 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 05:32:22,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2722 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:22,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-25 05:32:22,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-12-25 05:32:22,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 433 states have (on average 1.7136258660508084) internal successors, (742), 454 states have internal predecessors, (742), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:22,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 933 transitions. [2023-12-25 05:32:22,990 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 933 transitions. Word has length 52 [2023-12-25 05:32:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:22,990 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 933 transitions. [2023-12-25 05:32:22,990 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:22,990 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 933 transitions. [2023-12-25 05:32:22,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 05:32:22,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:22,992 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 05:32:23,027 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 (4)] Ended with exit code 0 [2023-12-25 05:32:23,196 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 05:32:23,197 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:23,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:23,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1255650139, now seen corresponding path program 1 times [2023-12-25 05:32:23,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:23,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461913425] [2023-12-25 05:32:23,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:23,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:23,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:23,204 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 05:32:23,208 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 05:32:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:23,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:23,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:23,509 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 05:32:23,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:23,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:23,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461913425] [2023-12-25 05:32:23,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461913425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:23,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:23,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:23,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865300326] [2023-12-25 05:32:23,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:23,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:23,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:23,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:23,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:23,516 INFO L87 Difference]: Start difference. First operand 556 states and 933 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:23,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:23,593 INFO L93 Difference]: Finished difference Result 1100 states and 1850 transitions. [2023-12-25 05:32:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:23,594 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2023-12-25 05:32:23,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:23,615 INFO L225 Difference]: With dead ends: 1100 [2023-12-25 05:32:23,615 INFO L226 Difference]: Without dead ends: 556 [2023-12-25 05:32:23,617 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 05:32:23,617 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 10 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:23,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2722 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:23,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-25 05:32:23,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-12-25 05:32:23,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 433 states have (on average 1.7113163972286374) internal successors, (741), 454 states have internal predecessors, (741), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 932 transitions. [2023-12-25 05:32:23,628 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 932 transitions. Word has length 53 [2023-12-25 05:32:23,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:23,629 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 932 transitions. [2023-12-25 05:32:23,629 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:23,629 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 932 transitions. [2023-12-25 05:32:23,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 05:32:23,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:23,630 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 05:32:23,636 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 05:32:23,836 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 05:32:23,837 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:23,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:23,837 INFO L85 PathProgramCache]: Analyzing trace with hash -257312916, now seen corresponding path program 1 times [2023-12-25 05:32:23,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:23,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390084165] [2023-12-25 05:32:23,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:23,838 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 05:32:23,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:23,839 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 05:32:23,852 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 05:32:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:24,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:24,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:24,119 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 05:32:24,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:24,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:24,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390084165] [2023-12-25 05:32:24,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390084165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:24,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:24,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:24,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444671575] [2023-12-25 05:32:24,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:24,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:24,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:24,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:24,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:24,122 INFO L87 Difference]: Start difference. First operand 556 states and 932 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:24,210 INFO L93 Difference]: Finished difference Result 1100 states and 1849 transitions. [2023-12-25 05:32:24,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:24,210 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2023-12-25 05:32:24,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:24,213 INFO L225 Difference]: With dead ends: 1100 [2023-12-25 05:32:24,213 INFO L226 Difference]: Without dead ends: 556 [2023-12-25 05:32:24,217 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 05:32:24,218 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 8 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2722 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 05:32:24,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2722 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:24,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-25 05:32:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-12-25 05:32:24,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 433 states have (on average 1.7090069284064666) internal successors, (740), 454 states have internal predecessors, (740), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 931 transitions. [2023-12-25 05:32:24,237 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 931 transitions. Word has length 54 [2023-12-25 05:32:24,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:24,238 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 931 transitions. [2023-12-25 05:32:24,238 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:24,238 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 931 transitions. [2023-12-25 05:32:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-25 05:32:24,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:24,239 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 05:32:24,262 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 05:32:24,449 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 05:32:24,449 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:24,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:24,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1881624695, now seen corresponding path program 1 times [2023-12-25 05:32:24,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:24,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286905559] [2023-12-25 05:32:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:24,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:24,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:24,464 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 05:32:24,479 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 05:32:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:24,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:24,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:24,726 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 05:32:24,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:24,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:24,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286905559] [2023-12-25 05:32:24,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286905559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:24,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:24,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:24,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962912950] [2023-12-25 05:32:24,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:24,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:24,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:24,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:24,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:24,728 INFO L87 Difference]: Start difference. First operand 556 states and 931 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:24,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:24,809 INFO L93 Difference]: Finished difference Result 1100 states and 1848 transitions. [2023-12-25 05:32:24,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:24,810 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2023-12-25 05:32:24,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:24,813 INFO L225 Difference]: With dead ends: 1100 [2023-12-25 05:32:24,813 INFO L226 Difference]: Without dead ends: 556 [2023-12-25 05:32:24,815 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 05:32:24,816 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 6 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2722 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 05:32:24,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2722 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:24,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-25 05:32:24,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-12-25 05:32:24,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 433 states have (on average 1.7066974595842956) internal successors, (739), 454 states have internal predecessors, (739), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:24,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 930 transitions. [2023-12-25 05:32:24,830 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 930 transitions. Word has length 55 [2023-12-25 05:32:24,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:24,830 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 930 transitions. [2023-12-25 05:32:24,830 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:24,830 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 930 transitions. [2023-12-25 05:32:24,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:32:24,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:24,831 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 05:32:24,843 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 05:32:25,043 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 05:32:25,043 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:25,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:25,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1091290384, now seen corresponding path program 1 times [2023-12-25 05:32:25,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:25,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187769025] [2023-12-25 05:32:25,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:25,044 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 05:32:25,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:25,045 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 05:32:25,047 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 05:32:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:25,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:32:25,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:25,322 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 05:32:25,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:25,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:25,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187769025] [2023-12-25 05:32:25,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187769025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:25,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:25,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:32:25,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361819259] [2023-12-25 05:32:25,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:25,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:32:25,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:25,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:32:25,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:32:25,324 INFO L87 Difference]: Start difference. First operand 556 states and 930 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:32:25,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:25,484 INFO L93 Difference]: Finished difference Result 1066 states and 1780 transitions. [2023-12-25 05:32:25,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:32:25,484 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2023-12-25 05:32:25,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:25,487 INFO L225 Difference]: With dead ends: 1066 [2023-12-25 05:32:25,487 INFO L226 Difference]: Without dead ends: 570 [2023-12-25 05:32:25,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:32:25,489 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 115 mSDsluCounter, 4440 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5346 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 05:32:25,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5346 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:25,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-12-25 05:32:25,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 568. [2023-12-25 05:32:25,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 442 states have (on average 1.7036199095022624) internal successors, (753), 465 states have internal predecessors, (753), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2023-12-25 05:32:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 948 transitions. [2023-12-25 05:32:25,503 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 948 transitions. Word has length 56 [2023-12-25 05:32:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:25,503 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 948 transitions. [2023-12-25 05:32:25,503 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:32:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 948 transitions. [2023-12-25 05:32:25,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:32:25,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:25,504 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 05:32:25,532 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 05:32:25,735 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 05:32:25,736 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:25,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash -609450095, now seen corresponding path program 1 times [2023-12-25 05:32:25,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:25,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519584377] [2023-12-25 05:32:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:25,737 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 05:32:25,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:25,738 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 05:32:25,739 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 05:32:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:25,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:25,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:26,007 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 05:32:26,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:26,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:26,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519584377] [2023-12-25 05:32:26,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519584377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:26,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:26,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:26,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922086663] [2023-12-25 05:32:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:26,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:26,009 INFO L87 Difference]: Start difference. First operand 568 states and 948 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:26,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:26,086 INFO L93 Difference]: Finished difference Result 1116 states and 1872 transitions. [2023-12-25 05:32:26,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:26,087 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-25 05:32:26,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:26,090 INFO L225 Difference]: With dead ends: 1116 [2023-12-25 05:32:26,090 INFO L226 Difference]: Without dead ends: 550 [2023-12-25 05:32:26,092 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 05:32:26,093 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 3 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2723 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:26,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2723 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:32:26,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-25 05:32:26,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-12-25 05:32:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 427 states have (on average 1.6978922716627636) internal successors, (725), 448 states have internal predecessors, (725), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:26,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 916 transitions. [2023-12-25 05:32:26,106 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 916 transitions. Word has length 56 [2023-12-25 05:32:26,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:26,106 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 916 transitions. [2023-12-25 05:32:26,106 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:26,106 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 916 transitions. [2023-12-25 05:32:26,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:32:26,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:26,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:26,117 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 05:32:26,314 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 05:32:26,315 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:26,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:26,315 INFO L85 PathProgramCache]: Analyzing trace with hash -979402928, now seen corresponding path program 1 times [2023-12-25 05:32:26,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:26,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819503809] [2023-12-25 05:32:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:26,315 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 05:32:26,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:26,316 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 05:32:26,318 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 05:32:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:26,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:26,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:26,564 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 05:32:26,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:26,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:26,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819503809] [2023-12-25 05:32:26,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819503809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:26,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:26,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:26,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866081828] [2023-12-25 05:32:26,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:26,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:26,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:26,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:26,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:26,566 INFO L87 Difference]: Start difference. First operand 550 states and 916 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:26,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:26,690 INFO L93 Difference]: Finished difference Result 1054 states and 1758 transitions. [2023-12-25 05:32:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:26,691 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-25 05:32:26,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:26,693 INFO L225 Difference]: With dead ends: 1054 [2023-12-25 05:32:26,694 INFO L226 Difference]: Without dead ends: 550 [2023-12-25 05:32:26,696 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 05:32:26,696 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 88 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2538 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 05:32:26,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2538 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:26,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-25 05:32:26,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-12-25 05:32:26,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 427 states have (on average 1.6885245901639345) internal successors, (721), 448 states have internal predecessors, (721), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:26,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 912 transitions. [2023-12-25 05:32:26,708 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 912 transitions. Word has length 57 [2023-12-25 05:32:26,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:26,708 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 912 transitions. [2023-12-25 05:32:26,709 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:26,709 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 912 transitions. [2023-12-25 05:32:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:32:26,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:26,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:32:26,732 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 05:32:26,917 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 05:32:26,917 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:26,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:26,918 INFO L85 PathProgramCache]: Analyzing trace with hash 673586829, now seen corresponding path program 1 times [2023-12-25 05:32:26,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:26,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978653451] [2023-12-25 05:32:26,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:26,918 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 05:32:26,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:26,920 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 05:32:26,920 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 05:32:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:27,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:27,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:27,208 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 05:32:27,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:27,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:27,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978653451] [2023-12-25 05:32:27,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978653451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:27,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:27,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:27,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653915279] [2023-12-25 05:32:27,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:27,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:27,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:27,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:27,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:27,210 INFO L87 Difference]: Start difference. First operand 550 states and 912 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:27,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:27,359 INFO L93 Difference]: Finished difference Result 1054 states and 1754 transitions. [2023-12-25 05:32:27,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:27,360 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-25 05:32:27,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:27,362 INFO L225 Difference]: With dead ends: 1054 [2023-12-25 05:32:27,362 INFO L226 Difference]: Without dead ends: 550 [2023-12-25 05:32:27,364 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 05:32:27,365 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 83 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2538 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 05:32:27,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2538 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:27,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-25 05:32:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-12-25 05:32:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 427 states have (on average 1.6791569086651055) internal successors, (717), 448 states have internal predecessors, (717), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:27,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 908 transitions. [2023-12-25 05:32:27,375 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 908 transitions. Word has length 58 [2023-12-25 05:32:27,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:27,376 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 908 transitions. [2023-12-25 05:32:27,376 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 908 transitions. [2023-12-25 05:32:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:32:27,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:27,376 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 05:32:27,385 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 05:32:27,583 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 05:32:27,583 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:27,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:27,584 INFO L85 PathProgramCache]: Analyzing trace with hash -49252853, now seen corresponding path program 1 times [2023-12-25 05:32:27,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:27,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589895251] [2023-12-25 05:32:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:27,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:27,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:27,585 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 05:32:27,587 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 05:32:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:27,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:27,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:27,870 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 05:32:27,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:27,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:27,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589895251] [2023-12-25 05:32:27,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589895251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:27,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:27,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:27,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848738105] [2023-12-25 05:32:27,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:27,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:27,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:27,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:27,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:27,872 INFO L87 Difference]: Start difference. First operand 550 states and 908 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:27,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:27,986 INFO L93 Difference]: Finished difference Result 1054 states and 1750 transitions. [2023-12-25 05:32:27,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:27,987 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-12-25 05:32:27,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:27,990 INFO L225 Difference]: With dead ends: 1054 [2023-12-25 05:32:27,990 INFO L226 Difference]: Without dead ends: 550 [2023-12-25 05:32:27,992 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 05:32:27,992 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 78 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2538 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 05:32:27,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2538 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:27,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-25 05:32:28,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-12-25 05:32:28,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 427 states have (on average 1.6697892271662764) internal successors, (713), 448 states have internal predecessors, (713), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:28,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 904 transitions. [2023-12-25 05:32:28,003 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 904 transitions. Word has length 59 [2023-12-25 05:32:28,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:28,003 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 904 transitions. [2023-12-25 05:32:28,003 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:28,003 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 904 transitions. [2023-12-25 05:32:28,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:32:28,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:28,004 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 05:32:28,011 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 05:32:28,211 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 05:32:28,211 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:28,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:28,212 INFO L85 PathProgramCache]: Analyzing trace with hash 635193739, now seen corresponding path program 1 times [2023-12-25 05:32:28,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:28,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020704459] [2023-12-25 05:32:28,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:28,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:28,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:28,214 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 05:32:28,215 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 05:32:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:28,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:32:28,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:28,497 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 05:32:28,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:28,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:28,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020704459] [2023-12-25 05:32:28,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020704459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:28,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:28,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:32:28,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165445548] [2023-12-25 05:32:28,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:28,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:32:28,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:28,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:32:28,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:32:28,499 INFO L87 Difference]: Start difference. First operand 550 states and 904 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:32:28,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:28,632 INFO L93 Difference]: Finished difference Result 1054 states and 1746 transitions. [2023-12-25 05:32:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:32:28,637 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2023-12-25 05:32:28,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:28,640 INFO L225 Difference]: With dead ends: 1054 [2023-12-25 05:32:28,640 INFO L226 Difference]: Without dead ends: 529 [2023-12-25 05:32:28,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:32:28,643 INFO L413 NwaCegarLoop]: 879 mSDtfsCounter, 108 mSDsluCounter, 4313 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 5192 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 05:32:28,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 5192 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:28,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-25 05:32:28,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-25 05:32:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 406 states have (on average 1.6724137931034482) internal successors, (679), 427 states have internal predecessors, (679), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:28,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 870 transitions. [2023-12-25 05:32:28,677 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 870 transitions. Word has length 59 [2023-12-25 05:32:28,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:28,677 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 870 transitions. [2023-12-25 05:32:28,677 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:32:28,677 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 870 transitions. [2023-12-25 05:32:28,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 05:32:28,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:28,678 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 05:32:28,687 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 05:32:28,885 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 05:32:28,885 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:28,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:28,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1408361112, now seen corresponding path program 1 times [2023-12-25 05:32:28,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:28,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371766737] [2023-12-25 05:32:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:28,886 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 05:32:28,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:28,887 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 05:32:28,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-25 05:32:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:29,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:29,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:29,154 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 05:32:29,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:29,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:29,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371766737] [2023-12-25 05:32:29,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371766737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:29,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:29,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:29,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876303308] [2023-12-25 05:32:29,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:29,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:29,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:29,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:29,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:29,160 INFO L87 Difference]: Start difference. First operand 529 states and 870 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:29,241 INFO L93 Difference]: Finished difference Result 1033 states and 1712 transitions. [2023-12-25 05:32:29,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:29,242 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2023-12-25 05:32:29,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:29,245 INFO L225 Difference]: With dead ends: 1033 [2023-12-25 05:32:29,245 INFO L226 Difference]: Without dead ends: 529 [2023-12-25 05:32:29,247 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 05:32:29,247 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 39 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2524 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 05:32:29,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2524 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:29,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-25 05:32:29,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-25 05:32:29,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 406 states have (on average 1.6699507389162562) internal successors, (678), 427 states have internal predecessors, (678), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:29,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 869 transitions. [2023-12-25 05:32:29,258 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 869 transitions. Word has length 60 [2023-12-25 05:32:29,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:29,258 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 869 transitions. [2023-12-25 05:32:29,259 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:29,259 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 869 transitions. [2023-12-25 05:32:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-25 05:32:29,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:29,259 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 05:32:29,268 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 05:32:29,466 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 05:32:29,466 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:29,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:29,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1016958778, now seen corresponding path program 1 times [2023-12-25 05:32:29,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:29,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127768632] [2023-12-25 05:32:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:29,467 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 05:32:29,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:29,473 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 05:32:29,506 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 05:32:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:29,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:29,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:29,712 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 05:32:29,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:29,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:29,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127768632] [2023-12-25 05:32:29,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127768632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:29,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:29,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:29,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538743310] [2023-12-25 05:32:29,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:29,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:29,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:29,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:29,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:29,715 INFO L87 Difference]: Start difference. First operand 529 states and 869 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:29,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:29,783 INFO L93 Difference]: Finished difference Result 1033 states and 1711 transitions. [2023-12-25 05:32:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:32:29,783 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2023-12-25 05:32:29,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:29,786 INFO L225 Difference]: With dead ends: 1033 [2023-12-25 05:32:29,786 INFO L226 Difference]: Without dead ends: 529 [2023-12-25 05:32:29,787 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 05:32:29,788 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 37 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2524 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 05:32:29,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2524 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:29,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-25 05:32:29,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-25 05:32:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 406 states have (on average 1.667487684729064) internal successors, (677), 427 states have internal predecessors, (677), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 868 transitions. [2023-12-25 05:32:29,797 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 868 transitions. Word has length 61 [2023-12-25 05:32:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:29,797 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 868 transitions. [2023-12-25 05:32:29,797 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-25 05:32:29,797 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 868 transitions. [2023-12-25 05:32:29,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 05:32:29,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:29,798 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 05:32:29,807 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 05:32:30,005 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 05:32:30,005 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:30,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:30,005 INFO L85 PathProgramCache]: Analyzing trace with hash 2100664387, now seen corresponding path program 1 times [2023-12-25 05:32:30,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:30,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225970864] [2023-12-25 05:32:30,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:30,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:30,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:30,007 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 05:32:30,008 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 05:32:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:30,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:32:30,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:30,276 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 05:32:30,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:30,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:30,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225970864] [2023-12-25 05:32:30,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225970864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:30,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:30,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:32:30,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758401117] [2023-12-25 05:32:30,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:30,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:32:30,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:30,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:32:30,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:32:30,278 INFO L87 Difference]: Start difference. First operand 529 states and 868 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:32:30,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:30,455 INFO L93 Difference]: Finished difference Result 1027 states and 1699 transitions. [2023-12-25 05:32:30,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:32:30,455 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2023-12-25 05:32:30,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:30,458 INFO L225 Difference]: With dead ends: 1027 [2023-12-25 05:32:30,458 INFO L226 Difference]: Without dead ends: 529 [2023-12-25 05:32:30,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 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 05:32:30,460 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 25 mSDsluCounter, 5022 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5862 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 05:32:30,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5862 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:32:30,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-25 05:32:30,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-12-25 05:32:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 406 states have (on average 1.6650246305418719) internal successors, (676), 427 states have internal predecessors, (676), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-25 05:32:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 867 transitions. [2023-12-25 05:32:30,470 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 867 transitions. Word has length 62 [2023-12-25 05:32:30,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:30,471 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 867 transitions. [2023-12-25 05:32:30,471 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:32:30,471 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 867 transitions. [2023-12-25 05:32:30,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 05:32:30,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:30,472 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 05:32:30,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-25 05:32:30,678 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 05:32:30,679 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:30,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:30,679 INFO L85 PathProgramCache]: Analyzing trace with hash -882571087, now seen corresponding path program 1 times [2023-12-25 05:32:30,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:30,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592189848] [2023-12-25 05:32:30,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:30,680 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 05:32:30,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:30,681 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 05:32:30,683 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 05:32:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:30,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:32:30,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:31,187 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 05:32:31,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:31,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:31,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592189848] [2023-12-25 05:32:31,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592189848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:31,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:31,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:32:31,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956898595] [2023-12-25 05:32:31,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:31,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:32:31,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:31,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:32:31,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:32:31,189 INFO L87 Difference]: Start difference. First operand 529 states and 867 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, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:32:34,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:34,397 INFO L93 Difference]: Finished difference Result 2092 states and 3509 transitions. [2023-12-25 05:32:34,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:32:34,397 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, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2023-12-25 05:32:34,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:34,411 INFO L225 Difference]: With dead ends: 2092 [2023-12-25 05:32:34,411 INFO L226 Difference]: Without dead ends: 1601 [2023-12-25 05:32:34,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 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 05:32:34,413 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 3271 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 3096 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3452 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 3741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 3096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:34,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3452 Valid, 1499 Invalid, 3741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 3096 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 05:32:34,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2023-12-25 05:32:34,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1402. [2023-12-25 05:32:34,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1092 states have (on average 1.6923076923076923) internal successors, (1848), 1131 states have internal predecessors, (1848), 251 states have call successors, (251), 57 states have call predecessors, (251), 58 states have return successors, (256), 228 states have call predecessors, (256), 246 states have call successors, (256) [2023-12-25 05:32:34,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2355 transitions. [2023-12-25 05:32:34,487 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2355 transitions. Word has length 63 [2023-12-25 05:32:34,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:34,487 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 2355 transitions. [2023-12-25 05:32:34,487 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, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-25 05:32:34,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2355 transitions. [2023-12-25 05:32:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:32:34,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:34,491 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] [2023-12-25 05:32:34,528 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 05:32:34,717 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 05:32:34,717 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:34,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:34,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1640044377, now seen corresponding path program 1 times [2023-12-25 05:32:34,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:34,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198978554] [2023-12-25 05:32:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:34,718 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 05:32:34,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:34,723 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 05:32:34,724 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 05:32:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:35,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 05:32:35,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:32:35,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:35,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:35,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198978554] [2023-12-25 05:32:35,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198978554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:35,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:35,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:32:35,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517046498] [2023-12-25 05:32:35,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:35,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:32:35,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:35,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:32:35,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:32:35,218 INFO L87 Difference]: Start difference. First operand 1402 states and 2355 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, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:32:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:37,399 INFO L93 Difference]: Finished difference Result 2781 states and 4746 transitions. [2023-12-25 05:32:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:32:37,400 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, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2023-12-25 05:32:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:37,407 INFO L225 Difference]: With dead ends: 2781 [2023-12-25 05:32:37,407 INFO L226 Difference]: Without dead ends: 1417 [2023-12-25 05:32:37,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 95 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 05:32:37,412 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1324 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 3413 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 3813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 3413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:37,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 1788 Invalid, 3813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 3413 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 05:32:37,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2023-12-25 05:32:37,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1414. [2023-12-25 05:32:37,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1101 states have (on average 1.6866485013623977) internal successors, (1857), 1140 states have internal predecessors, (1857), 251 states have call successors, (251), 57 states have call predecessors, (251), 61 states have return successors, (304), 231 states have call predecessors, (304), 246 states have call successors, (304) [2023-12-25 05:32:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2412 transitions. [2023-12-25 05:32:37,464 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2412 transitions. Word has length 102 [2023-12-25 05:32:37,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:37,465 INFO L495 AbstractCegarLoop]: Abstraction has 1414 states and 2412 transitions. [2023-12-25 05:32:37,465 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, (13), 4 states have call predecessors, (13), 5 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:32:37,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2412 transitions. [2023-12-25 05:32:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:32:37,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:37,469 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] [2023-12-25 05:32:37,494 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 05:32:37,680 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 05:32:37,680 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:37,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:37,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1207031278, now seen corresponding path program 1 times [2023-12-25 05:32:37,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:37,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170706390] [2023-12-25 05:32:37,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:37,682 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 05:32:37,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:37,683 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 05:32:37,685 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 05:32:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:38,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:32:38,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:38,149 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 05:32:38,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:38,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:38,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170706390] [2023-12-25 05:32:38,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170706390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:38,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:38,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:32:38,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792363118] [2023-12-25 05:32:38,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:38,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:32:38,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:38,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:32:38,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:32:38,153 INFO L87 Difference]: Start difference. First operand 1414 states and 2412 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:32:41,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:41,511 INFO L93 Difference]: Finished difference Result 4355 states and 7428 transitions. [2023-12-25 05:32:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:32:41,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2023-12-25 05:32:41,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:41,537 INFO L225 Difference]: With dead ends: 4355 [2023-12-25 05:32:41,537 INFO L226 Difference]: Without dead ends: 2979 [2023-12-25 05:32:41,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 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 05:32:41,550 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 1961 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 5571 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 6203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 5571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:41,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 2481 Invalid, 6203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 5571 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 05:32:41,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2023-12-25 05:32:41,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2803. [2023-12-25 05:32:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2089 states have (on average 1.6443274293920536) internal successors, (3435), 2175 states have internal predecessors, (3435), 589 states have call successors, (589), 99 states have call predecessors, (589), 124 states have return successors, (696), 561 states have call predecessors, (696), 584 states have call successors, (696) [2023-12-25 05:32:41,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 4720 transitions. [2023-12-25 05:32:41,729 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 4720 transitions. Word has length 102 [2023-12-25 05:32:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:41,729 INFO L495 AbstractCegarLoop]: Abstraction has 2803 states and 4720 transitions. [2023-12-25 05:32:41,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:32:41,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 4720 transitions. [2023-12-25 05:32:41,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:32:41,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:41,732 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 05:32:41,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:41,941 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 05:32:41,941 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:41,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:41,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1953804667, now seen corresponding path program 1 times [2023-12-25 05:32:41,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:41,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606143979] [2023-12-25 05:32:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:41,942 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 05:32:41,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:41,943 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 05:32:41,945 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 05:32:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:42,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:32:42,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:42,393 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 05:32:42,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:42,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:42,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606143979] [2023-12-25 05:32:42,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606143979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:42,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:42,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:32:42,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518180730] [2023-12-25 05:32:42,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:42,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:32:42,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:42,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:32:42,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:32:42,395 INFO L87 Difference]: Start difference. First operand 2803 states and 4720 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, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:32:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:45,688 INFO L93 Difference]: Finished difference Result 9023 states and 15525 transitions. [2023-12-25 05:32:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:32:45,690 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, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 103 [2023-12-25 05:32:45,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:45,742 INFO L225 Difference]: With dead ends: 9023 [2023-12-25 05:32:45,742 INFO L226 Difference]: Without dead ends: 6258 [2023-12-25 05:32:45,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 99 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 05:32:45,757 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 2791 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 4641 mSolverCounterSat, 737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 5378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 4641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:45,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 2399 Invalid, 5378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [737 Valid, 4641 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:32:45,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6258 states. [2023-12-25 05:32:46,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6258 to 6020. [2023-12-25 05:32:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6020 states, 4496 states have (on average 1.6314501779359432) internal successors, (7335), 4697 states have internal predecessors, (7335), 1251 states have call successors, (1251), 236 states have call predecessors, (1251), 272 states have return successors, (1441), 1163 states have call predecessors, (1441), 1246 states have call successors, (1441) [2023-12-25 05:32:46,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6020 states to 6020 states and 10027 transitions. [2023-12-25 05:32:46,200 INFO L78 Accepts]: Start accepts. Automaton has 6020 states and 10027 transitions. Word has length 103 [2023-12-25 05:32:46,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:46,200 INFO L495 AbstractCegarLoop]: Abstraction has 6020 states and 10027 transitions. [2023-12-25 05:32:46,200 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, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-25 05:32:46,200 INFO L276 IsEmpty]: Start isEmpty. Operand 6020 states and 10027 transitions. [2023-12-25 05:32:46,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-25 05:32:46,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:46,202 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] [2023-12-25 05:32:46,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-25 05:32:46,411 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 05:32:46,411 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:46,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:46,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1758150214, now seen corresponding path program 1 times [2023-12-25 05:32:46,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:46,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888787958] [2023-12-25 05:32:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:46,412 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 05:32:46,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:46,413 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 05:32:46,414 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 05:32:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:46,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 05:32:46,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:47,125 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 05:32:47,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:47,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:47,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888787958] [2023-12-25 05:32:47,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888787958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:47,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:47,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:32:47,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629718535] [2023-12-25 05:32:47,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:47,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:32:47,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:47,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:32:47,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:32:47,127 INFO L87 Difference]: Start difference. First operand 6020 states and 10027 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, (14), 5 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 05:32:50,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:50,875 INFO L93 Difference]: Finished difference Result 14091 states and 23625 transitions. [2023-12-25 05:32:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:32:50,881 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, (14), 5 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 104 [2023-12-25 05:32:50,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:50,928 INFO L225 Difference]: With dead ends: 14091 [2023-12-25 05:32:50,929 INFO L226 Difference]: Without dead ends: 8109 [2023-12-25 05:32:50,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 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 05:32:50,952 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 3223 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 4043 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 4671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 4043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:50,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3396 Valid, 1780 Invalid, 4671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 4043 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 05:32:50,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2023-12-25 05:32:51,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 7347. [2023-12-25 05:32:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 5503 states have (on average 1.6303834272215156) internal successors, (8972), 5744 states have internal predecessors, (8972), 1503 states have call successors, (1503), 301 states have call predecessors, (1503), 340 states have return successors, (1762), 1378 states have call predecessors, (1762), 1498 states have call successors, (1762) [2023-12-25 05:32:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 12237 transitions. [2023-12-25 05:32:51,451 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 12237 transitions. Word has length 104 [2023-12-25 05:32:51,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:51,451 INFO L495 AbstractCegarLoop]: Abstraction has 7347 states and 12237 transitions. [2023-12-25 05:32:51,452 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, (14), 5 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 05:32:51,452 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 12237 transitions. [2023-12-25 05:32:51,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:32:51,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:51,454 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] [2023-12-25 05:32:51,482 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 05:32:51,664 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 05:32:51,664 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:51,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:51,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1050345259, now seen corresponding path program 1 times [2023-12-25 05:32:51,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:51,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409159785] [2023-12-25 05:32:51,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:51,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:32:51,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:51,666 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 05:32:51,692 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 05:32:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:51,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:32:51,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:52,155 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 05:32:52,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:52,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:52,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409159785] [2023-12-25 05:32:52,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409159785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:52,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:52,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:32:52,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247640634] [2023-12-25 05:32:52,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:52,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:32:52,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:52,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:32:52,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:32:52,157 INFO L87 Difference]: Start difference. First operand 7347 states and 12237 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, (14), 5 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 05:32:57,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:57,769 INFO L93 Difference]: Finished difference Result 21774 states and 37007 transitions. [2023-12-25 05:32:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:32:57,770 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, (14), 5 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 109 [2023-12-25 05:32:57,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:57,848 INFO L225 Difference]: With dead ends: 21774 [2023-12-25 05:32:57,848 INFO L226 Difference]: Without dead ends: 14429 [2023-12-25 05:32:57,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 102 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 05:32:57,873 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 2213 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 7190 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 7733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 7190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:57,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 3284 Invalid, 7733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 7190 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-25 05:32:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14429 states. [2023-12-25 05:32:58,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14429 to 14110. [2023-12-25 05:32:58,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14110 states, 10289 states have (on average 1.6095830498590729) internal successors, (16561), 10831 states have internal predecessors, (16561), 3176 states have call successors, (3176), 507 states have call predecessors, (3176), 644 states have return successors, (3951), 3037 states have call predecessors, (3951), 3171 states have call successors, (3951) [2023-12-25 05:32:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14110 states to 14110 states and 23688 transitions. [2023-12-25 05:32:58,807 INFO L78 Accepts]: Start accepts. Automaton has 14110 states and 23688 transitions. Word has length 109 [2023-12-25 05:32:58,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:58,807 INFO L495 AbstractCegarLoop]: Abstraction has 14110 states and 23688 transitions. [2023-12-25 05:32:58,807 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, (14), 5 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 05:32:58,807 INFO L276 IsEmpty]: Start isEmpty. Operand 14110 states and 23688 transitions. [2023-12-25 05:32:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-25 05:32:58,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:58,810 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] [2023-12-25 05:32:58,820 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 05:32:59,020 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 05:32:59,020 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:59,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:59,021 INFO L85 PathProgramCache]: Analyzing trace with hash 817673091, now seen corresponding path program 1 times [2023-12-25 05:32:59,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:59,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579094745] [2023-12-25 05:32:59,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:59,022 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 05:32:59,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:59,033 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 05:32:59,064 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 05:32:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:59,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:32:59,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:59,499 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 05:32:59,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:59,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:59,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579094745] [2023-12-25 05:32:59,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579094745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:59,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:59,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:32:59,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724416888] [2023-12-25 05:32:59,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:59,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:32:59,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:59,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:32:59,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:32:59,501 INFO L87 Difference]: Start difference. First operand 14110 states and 23688 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, (14), 5 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 05:33:04,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:04,154 INFO L93 Difference]: Finished difference Result 44995 states and 77714 transitions. [2023-12-25 05:33:04,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:04,157 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, (14), 5 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 110 [2023-12-25 05:33:04,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:04,286 INFO L225 Difference]: With dead ends: 44995 [2023-12-25 05:33:04,286 INFO L226 Difference]: Without dead ends: 30926 [2023-12-25 05:33:04,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 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 05:33:04,331 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 2209 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 3235 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2346 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 3775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 3235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:04,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2346 Valid, 1803 Invalid, 3775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 3235 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-25 05:33:04,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30926 states. [2023-12-25 05:33:06,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30926 to 30531. [2023-12-25 05:33:06,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30531 states, 21654 states have (on average 1.5961023367507159) internal successors, (34562), 22959 states have internal predecessors, (34562), 7558 states have call successors, (7558), 926 states have call predecessors, (7558), 1318 states have return successors, (10289), 7422 states have call predecessors, (10289), 7553 states have call successors, (10289) [2023-12-25 05:33:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30531 states to 30531 states and 52409 transitions. [2023-12-25 05:33:06,956 INFO L78 Accepts]: Start accepts. Automaton has 30531 states and 52409 transitions. Word has length 110 [2023-12-25 05:33:06,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:06,956 INFO L495 AbstractCegarLoop]: Abstraction has 30531 states and 52409 transitions. [2023-12-25 05:33:06,957 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, (14), 5 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 05:33:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 30531 states and 52409 transitions. [2023-12-25 05:33:06,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:33:06,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:06,960 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 05:33:06,970 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 05:33:07,172 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 05:33:07,173 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:07,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:07,173 INFO L85 PathProgramCache]: Analyzing trace with hash -172071864, now seen corresponding path program 1 times [2023-12-25 05:33:07,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:07,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194574907] [2023-12-25 05:33:07,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:07,174 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 05:33:07,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:07,177 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 05:33:07,178 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 05:33:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:07,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:07,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:07,657 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 05:33:07,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:07,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:07,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194574907] [2023-12-25 05:33:07,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194574907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:07,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:07,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:07,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499728690] [2023-12-25 05:33:07,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:07,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:07,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:07,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:07,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:07,659 INFO L87 Difference]: Start difference. First operand 30531 states and 52409 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, (14), 5 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 05:33:16,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:16,530 INFO L93 Difference]: Finished difference Result 103368 states and 183955 transitions. [2023-12-25 05:33:16,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:16,531 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, (14), 5 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 111 [2023-12-25 05:33:16,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:17,213 INFO L225 Difference]: With dead ends: 103368 [2023-12-25 05:33:17,214 INFO L226 Difference]: Without dead ends: 72880 [2023-12-25 05:33:17,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 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 05:33:17,334 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 3314 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 795 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3452 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 795 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:17,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3452 Valid, 1492 Invalid, 3330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [795 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:33:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72880 states. [2023-12-25 05:33:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72880 to 72215. [2023-12-25 05:33:23,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72215 states, 49964 states have (on average 1.5872628292370508) internal successors, (79306), 53252 states have internal predecessors, (79306), 19309 states have call successors, (19309), 1764 states have call predecessors, (19309), 2941 states have return successors, (29753), 19361 states have call predecessors, (29753), 19304 states have call successors, (29753) [2023-12-25 05:33:24,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72215 states to 72215 states and 128368 transitions. [2023-12-25 05:33:24,639 INFO L78 Accepts]: Start accepts. Automaton has 72215 states and 128368 transitions. Word has length 111 [2023-12-25 05:33:24,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:33:24,640 INFO L495 AbstractCegarLoop]: Abstraction has 72215 states and 128368 transitions. [2023-12-25 05:33:24,640 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, (14), 5 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 05:33:24,640 INFO L276 IsEmpty]: Start isEmpty. Operand 72215 states and 128368 transitions. [2023-12-25 05:33:24,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-25 05:33:24,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:33:24,643 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 05:33:24,652 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 (24)] Ended with exit code 0 [2023-12-25 05:33:24,844 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 05:33:24,844 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:33:24,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:33:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1617896706, now seen corresponding path program 1 times [2023-12-25 05:33:24,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:33:24,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283348852] [2023-12-25 05:33:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:33:24,845 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 05:33:24,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:33:24,846 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 05:33:24,848 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 05:33:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:33:25,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:33:25,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:33:25,301 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 05:33:25,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:33:25,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:33:25,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283348852] [2023-12-25 05:33:25,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283348852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:33:25,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:33:25,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:33:25,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839434095] [2023-12-25 05:33:25,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:33:25,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:33:25,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:33:25,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:33:25,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:33:25,304 INFO L87 Difference]: Start difference. First operand 72215 states and 128368 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, (14), 5 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 05:33:47,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:33:47,949 INFO L93 Difference]: Finished difference Result 255776 states and 475602 transitions. [2023-12-25 05:33:47,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:33:47,950 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, (14), 5 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 112 [2023-12-25 05:33:47,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:33:50,102 INFO L225 Difference]: With dead ends: 255776 [2023-12-25 05:33:50,102 INFO L226 Difference]: Without dead ends: 183608 [2023-12-25 05:33:50,541 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 05:33:50,541 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 2223 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 3253 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 3795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 3253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-25 05:33:50,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 1845 Invalid, 3795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 3253 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-25 05:33:50,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183608 states.