/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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:29:10,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:29:10,488 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 05:29:10,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:29:10,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:29:10,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:29:10,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:29:10,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:29:10,527 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:29:10,527 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:29:10,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:29:10,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:29:10,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:29:10,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:29:10,532 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:29:10,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:29:10,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:29:10,534 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:29:10,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:29:10,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:29:10,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:29:10,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:29:10,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:29:10,536 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:29:10,537 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:29:10,537 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:29:10,537 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:29:10,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:29:10,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:29:10,538 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:29:10,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:29:10,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:29:10,540 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:29:10,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:29:10,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:29:10,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:29:10,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:29:10,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:29:10,541 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:29:10,541 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:29:10,541 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:29:10,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:29:10,542 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:29:10,542 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:29:10,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:29:10,543 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:29:10,543 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:29:10,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:29:10,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:29:10,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:29:10,825 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:29:10,825 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:29:10,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product03.cil.c [2023-12-25 05:29:11,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:29:12,293 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:29:12,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product03.cil.c [2023-12-25 05:29:12,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600a7d21b/664d6066a7b446a1be1227957e250fd9/FLAGc7843b978 [2023-12-25 05:29:12,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600a7d21b/664d6066a7b446a1be1227957e250fd9 [2023-12-25 05:29:12,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:29:12,337 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:29:12,338 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:29:12,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:29:12,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:29:12,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:29:12" (1/1) ... [2023-12-25 05:29:12,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462fe537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:12, skipping insertion in model container [2023-12-25 05:29:12,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:29:12" (1/1) ... [2023-12-25 05:29:12,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:29:12,774 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_product03.cil.c[29828,29841] [2023-12-25 05:29:12,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:29:12,970 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:29:12,989 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:29:13,023 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_product03.cil.c[29828,29841] [2023-12-25 05:29:13,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:29:13,088 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:29:13,097 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2023-12-25 05:29:13,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [716] [2023-12-25 05:29:13,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [837] [2023-12-25 05:29:13,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [851] [2023-12-25 05:29:13,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1217] [2023-12-25 05:29:13,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1226] [2023-12-25 05:29:13,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1264] [2023-12-25 05:29:13,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1622] [2023-12-25 05:29:13,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3131] [2023-12-25 05:29:13,101 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3312] [2023-12-25 05:29:13,146 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_product03.cil.c[29828,29841] [2023-12-25 05:29:13,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:29:13,249 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:29:13,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13 WrapperNode [2023-12-25 05:29:13,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:29:13,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:29:13,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:29:13,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:29:13,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,368 INFO L138 Inliner]: procedures = 94, calls = 336, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1012 [2023-12-25 05:29:13,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:29:13,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:29:13,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:29:13,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:29:13,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,389 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,421 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-25 05:29:13,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:29:13,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:29:13,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:29:13,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:29:13,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (1/1) ... [2023-12-25 05:29:13,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:29:13,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:29:13,518 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 05:29:13,579 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 05:29:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:29:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:29:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:29:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:29:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:29:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:29:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:29:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:29:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:29:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:29:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:29:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:29:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:29:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:29:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:29:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:29:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:29:13,590 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-25 05:29:13,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-25 05:29:13,591 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:29:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:29:13,592 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:29:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:29:13,592 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:29:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:29:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:29:13,594 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:29:13,594 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:29:13,594 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:29:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:29:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:29:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:29:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:29:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:29:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:29:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:29:13,596 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:29:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-12-25 05:29:13,596 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-12-25 05:29:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:29:13,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:29:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:29:13,598 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:29:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:29:13,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:29:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:29:13,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:29:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:29:13,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:29:13,815 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:29:13,819 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:29:14,857 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:29:15,024 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:29:15,024 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:29:15,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:29:15 BoogieIcfgContainer [2023-12-25 05:29:15,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:29:15,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:29:15,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:29:15,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:29:15,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:29:12" (1/3) ... [2023-12-25 05:29:15,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebf614e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:29:15, skipping insertion in model container [2023-12-25 05:29:15,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:29:13" (2/3) ... [2023-12-25 05:29:15,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebf614e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:29:15, skipping insertion in model container [2023-12-25 05:29:15,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:29:15" (3/3) ... [2023-12-25 05:29:15,035 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product03.cil.c [2023-12-25 05:29:15,051 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:29:15,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:29:15,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:29:15,119 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;@2f30666a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:29:15,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:29:15,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 525 states, 406 states have (on average 1.729064039408867) internal successors, (702), 427 states have internal predecessors, (702), 94 states have call successors, (94), 23 states have call predecessors, (94), 23 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-25 05:29:15,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 05:29:15,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:15,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:15,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:15,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:15,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2030237672, now seen corresponding path program 1 times [2023-12-25 05:29:15,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:15,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178185135] [2023-12-25 05:29:15,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:15,188 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 05:29:15,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:15,190 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 05:29:15,194 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 05:29:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:15,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 05:29:15,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:15,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:15,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:15,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178185135] [2023-12-25 05:29:15,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178185135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:15,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:15,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:29:15,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748917521] [2023-12-25 05:29:15,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:15,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 05:29:15,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:15,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 05:29:15,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 05:29:15,647 INFO L87 Difference]: Start difference. First operand has 525 states, 406 states have (on average 1.729064039408867) internal successors, (702), 427 states have internal predecessors, (702), 94 states have call successors, (94), 23 states have call predecessors, (94), 23 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-25 05:29:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:15,754 INFO L93 Difference]: Finished difference Result 543 states and 917 transitions. [2023-12-25 05:29:15,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 05:29:15,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2023-12-25 05:29:15,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:15,787 INFO L225 Difference]: With dead ends: 543 [2023-12-25 05:29:15,787 INFO L226 Difference]: Without dead ends: 521 [2023-12-25 05:29:15,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 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 05:29:15,793 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:15,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 868 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:29:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-25 05:29:15,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2023-12-25 05:29:15,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 404 states have (on average 1.7202970297029703) internal successors, (695), 423 states have internal predecessors, (695), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 878 transitions. [2023-12-25 05:29:15,870 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 878 transitions. Word has length 90 [2023-12-25 05:29:15,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:15,871 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 878 transitions. [2023-12-25 05:29:15,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-25 05:29:15,872 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 878 transitions. [2023-12-25 05:29:15,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-25 05:29:15,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:15,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:15,891 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 (2)] Ended with exit code 0 [2023-12-25 05:29:16,087 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 05:29:16,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:16,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash -223642406, now seen corresponding path program 1 times [2023-12-25 05:29:16,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:16,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899450935] [2023-12-25 05:29:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:16,090 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 05:29:16,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:16,091 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 05:29:16,094 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 05:29:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:16,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:16,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:16,549 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:16,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:16,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:16,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899450935] [2023-12-25 05:29:16,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899450935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:16,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:16,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:16,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88925823] [2023-12-25 05:29:16,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:16,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:16,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:16,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:16,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:16,558 INFO L87 Difference]: Start difference. First operand 521 states and 878 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:16,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:16,748 INFO L93 Difference]: Finished difference Result 1030 states and 1738 transitions. [2023-12-25 05:29:16,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:16,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2023-12-25 05:29:16,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:16,757 INFO L225 Difference]: With dead ends: 1030 [2023-12-25 05:29:16,757 INFO L226 Difference]: Without dead ends: 521 [2023-12-25 05:29:16,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 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 05:29:16,765 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 14 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:16,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2554 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:16,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-25 05:29:16,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2023-12-25 05:29:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 404 states have (on average 1.7178217821782178) internal successors, (694), 423 states have internal predecessors, (694), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:16,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 877 transitions. [2023-12-25 05:29:16,825 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 877 transitions. Word has length 91 [2023-12-25 05:29:16,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:16,827 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 877 transitions. [2023-12-25 05:29:16,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 877 transitions. [2023-12-25 05:29:16,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 05:29:16,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:16,834 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:16,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:17,043 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 05:29:17,043 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:17,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1384588745, now seen corresponding path program 1 times [2023-12-25 05:29:17,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:17,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060825202] [2023-12-25 05:29:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:17,045 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 05:29:17,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:17,046 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 05:29:17,049 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 05:29:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:17,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:17,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:17,445 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:17,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:17,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:17,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060825202] [2023-12-25 05:29:17,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060825202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:17,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:17,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:17,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576155093] [2023-12-25 05:29:17,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:17,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:17,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:17,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:17,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:17,448 INFO L87 Difference]: Start difference. First operand 521 states and 877 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:17,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:17,571 INFO L93 Difference]: Finished difference Result 1030 states and 1737 transitions. [2023-12-25 05:29:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:17,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-25 05:29:17,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:17,578 INFO L225 Difference]: With dead ends: 1030 [2023-12-25 05:29:17,578 INFO L226 Difference]: Without dead ends: 521 [2023-12-25 05:29:17,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:17,585 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 12 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:17,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2554 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:17,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-25 05:29:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2023-12-25 05:29:17,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 404 states have (on average 1.7153465346534653) internal successors, (693), 423 states have internal predecessors, (693), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 876 transitions. [2023-12-25 05:29:17,633 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 876 transitions. Word has length 92 [2023-12-25 05:29:17,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:17,634 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 876 transitions. [2023-12-25 05:29:17,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:17,635 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 876 transitions. [2023-12-25 05:29:17,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 05:29:17,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:17,640 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:17,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:17,849 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 05:29:17,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:17,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:17,850 INFO L85 PathProgramCache]: Analyzing trace with hash 738778750, now seen corresponding path program 1 times [2023-12-25 05:29:17,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:17,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577471327] [2023-12-25 05:29:17,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:17,851 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 05:29:17,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:17,854 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 05:29:17,868 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 05:29:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:18,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:18,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:18,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:18,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:18,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577471327] [2023-12-25 05:29:18,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577471327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:18,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:18,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:18,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898720145] [2023-12-25 05:29:18,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:18,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:18,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:18,241 INFO L87 Difference]: Start difference. First operand 521 states and 876 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:18,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:18,343 INFO L93 Difference]: Finished difference Result 1030 states and 1736 transitions. [2023-12-25 05:29:18,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:18,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-25 05:29:18,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:18,349 INFO L225 Difference]: With dead ends: 1030 [2023-12-25 05:29:18,349 INFO L226 Difference]: Without dead ends: 521 [2023-12-25 05:29:18,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:18,356 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 10 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2554 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 05:29:18,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2554 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:18,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-25 05:29:18,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2023-12-25 05:29:18,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 404 states have (on average 1.7128712871287128) internal successors, (692), 423 states have internal predecessors, (692), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 875 transitions. [2023-12-25 05:29:18,381 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 875 transitions. Word has length 93 [2023-12-25 05:29:18,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:18,381 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 875 transitions. [2023-12-25 05:29:18,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:18,382 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 875 transitions. [2023-12-25 05:29:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 05:29:18,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:18,384 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:18,395 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 05:29:18,595 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 05:29:18,595 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:18,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:18,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1596659995, now seen corresponding path program 1 times [2023-12-25 05:29:18,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:18,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190644104] [2023-12-25 05:29:18,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:18,597 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 05:29:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:18,598 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 05:29:18,616 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 05:29:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:18,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:18,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:18,966 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:18,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190644104] [2023-12-25 05:29:18,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190644104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:18,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:18,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:18,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577576194] [2023-12-25 05:29:18,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:18,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:18,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:18,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:18,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:18,969 INFO L87 Difference]: Start difference. First operand 521 states and 875 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:19,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:19,076 INFO L93 Difference]: Finished difference Result 1030 states and 1735 transitions. [2023-12-25 05:29:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:19,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2023-12-25 05:29:19,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:19,081 INFO L225 Difference]: With dead ends: 1030 [2023-12-25 05:29:19,081 INFO L226 Difference]: Without dead ends: 521 [2023-12-25 05:29:19,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:19,085 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 8 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2554 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 05:29:19,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2554 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:19,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-25 05:29:19,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2023-12-25 05:29:19,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 404 states have (on average 1.7103960396039604) internal successors, (691), 423 states have internal predecessors, (691), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:19,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 874 transitions. [2023-12-25 05:29:19,106 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 874 transitions. Word has length 94 [2023-12-25 05:29:19,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:19,106 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 874 transitions. [2023-12-25 05:29:19,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:19,107 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 874 transitions. [2023-12-25 05:29:19,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 05:29:19,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:19,110 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:19,124 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 05:29:19,318 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 05:29:19,319 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:19,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:19,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1879173154, now seen corresponding path program 1 times [2023-12-25 05:29:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:19,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33776177] [2023-12-25 05:29:19,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:19,320 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 05:29:19,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:19,322 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 05:29:19,332 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 05:29:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:19,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:19,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:19,644 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:19,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:19,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:19,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33776177] [2023-12-25 05:29:19,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33776177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:19,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:19,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:19,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058390718] [2023-12-25 05:29:19,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:19,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:19,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:19,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:19,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:19,647 INFO L87 Difference]: Start difference. First operand 521 states and 874 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:19,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:19,732 INFO L93 Difference]: Finished difference Result 1030 states and 1734 transitions. [2023-12-25 05:29:19,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:19,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-12-25 05:29:19,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:19,737 INFO L225 Difference]: With dead ends: 1030 [2023-12-25 05:29:19,737 INFO L226 Difference]: Without dead ends: 521 [2023-12-25 05:29:19,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:19,740 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 6 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:19,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2554 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:19,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-12-25 05:29:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2023-12-25 05:29:19,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 404 states have (on average 1.7079207920792079) internal successors, (690), 423 states have internal predecessors, (690), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 873 transitions. [2023-12-25 05:29:19,769 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 873 transitions. Word has length 95 [2023-12-25 05:29:19,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:19,769 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 873 transitions. [2023-12-25 05:29:19,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:19,769 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 873 transitions. [2023-12-25 05:29:19,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:29:19,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:19,772 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:19,783 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 05:29:19,979 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 05:29:19,980 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:19,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:19,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1505144831, now seen corresponding path program 1 times [2023-12-25 05:29:19,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:19,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500840286] [2023-12-25 05:29:19,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:19,981 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 05:29:19,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:19,982 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 05:29:20,017 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 05:29:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:20,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:29:20,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:20,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:20,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:20,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500840286] [2023-12-25 05:29:20,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500840286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:20,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:20,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:29:20,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731850468] [2023-12-25 05:29:20,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:20,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:29:20,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:20,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:29:20,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:29:20,336 INFO L87 Difference]: Start difference. First operand 521 states and 873 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:29:20,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:20,534 INFO L93 Difference]: Finished difference Result 996 states and 1666 transitions. [2023-12-25 05:29:20,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:29:20,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 96 [2023-12-25 05:29:20,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:20,539 INFO L225 Difference]: With dead ends: 996 [2023-12-25 05:29:20,539 INFO L226 Difference]: Without dead ends: 535 [2023-12-25 05:29:20,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 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 05:29:20,543 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 115 mSDsluCounter, 4160 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5010 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:20,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5010 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:20,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-12-25 05:29:20,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 533. [2023-12-25 05:29:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 413 states have (on average 1.7046004842615012) internal successors, (704), 434 states have internal predecessors, (704), 95 states have call successors, (95), 23 states have call predecessors, (95), 24 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2023-12-25 05:29:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 891 transitions. [2023-12-25 05:29:20,567 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 891 transitions. Word has length 96 [2023-12-25 05:29:20,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:20,567 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 891 transitions. [2023-12-25 05:29:20,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:29:20,567 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 891 transitions. [2023-12-25 05:29:20,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-25 05:29:20,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:20,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:20,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:20,779 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 05:29:20,779 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:20,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:20,780 INFO L85 PathProgramCache]: Analyzing trace with hash 295902592, now seen corresponding path program 1 times [2023-12-25 05:29:20,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:20,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598082258] [2023-12-25 05:29:20,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:20,781 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 05:29:20,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:20,785 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 05:29:20,832 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 05:29:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:21,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:21,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:21,159 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:21,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:21,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:21,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598082258] [2023-12-25 05:29:21,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598082258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:21,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:21,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:21,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553788062] [2023-12-25 05:29:21,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:21,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:21,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:21,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:21,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:21,162 INFO L87 Difference]: Start difference. First operand 533 states and 891 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:21,252 INFO L93 Difference]: Finished difference Result 1046 states and 1758 transitions. [2023-12-25 05:29:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:21,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2023-12-25 05:29:21,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:21,257 INFO L225 Difference]: With dead ends: 1046 [2023-12-25 05:29:21,257 INFO L226 Difference]: Without dead ends: 515 [2023-12-25 05:29:21,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:21,262 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 3 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:21,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2555 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:21,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-12-25 05:29:21,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2023-12-25 05:29:21,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 398 states have (on average 1.6984924623115578) internal successors, (676), 417 states have internal predecessors, (676), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:21,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 859 transitions. [2023-12-25 05:29:21,281 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 859 transitions. Word has length 96 [2023-12-25 05:29:21,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:21,281 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 859 transitions. [2023-12-25 05:29:21,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:21,281 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 859 transitions. [2023-12-25 05:29:21,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 05:29:21,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:21,284 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:21,294 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 05:29:21,491 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 05:29:21,491 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:21,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:21,492 INFO L85 PathProgramCache]: Analyzing trace with hash -170146603, now seen corresponding path program 1 times [2023-12-25 05:29:21,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:21,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037176057] [2023-12-25 05:29:21,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:21,493 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 05:29:21,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:21,494 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 05:29:21,497 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 05:29:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:21,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:21,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:21,862 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:21,862 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:21,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:21,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037176057] [2023-12-25 05:29:21,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037176057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:21,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:21,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:21,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552921260] [2023-12-25 05:29:21,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:21,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:21,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:21,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:21,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:21,864 INFO L87 Difference]: Start difference. First operand 515 states and 859 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:22,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:22,006 INFO L93 Difference]: Finished difference Result 984 states and 1644 transitions. [2023-12-25 05:29:22,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:22,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2023-12-25 05:29:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:22,013 INFO L225 Difference]: With dead ends: 984 [2023-12-25 05:29:22,013 INFO L226 Difference]: Without dead ends: 515 [2023-12-25 05:29:22,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 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 05:29:22,017 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 88 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:22,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2370 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:22,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-12-25 05:29:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2023-12-25 05:29:22,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 398 states have (on average 1.6884422110552764) internal successors, (672), 417 states have internal predecessors, (672), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:22,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 855 transitions. [2023-12-25 05:29:22,035 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 855 transitions. Word has length 97 [2023-12-25 05:29:22,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:22,035 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 855 transitions. [2023-12-25 05:29:22,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:22,035 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 855 transitions. [2023-12-25 05:29:22,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 05:29:22,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:22,040 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:22,053 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 05:29:22,250 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 05:29:22,251 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:22,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:22,251 INFO L85 PathProgramCache]: Analyzing trace with hash -519283908, now seen corresponding path program 1 times [2023-12-25 05:29:22,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:22,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338180305] [2023-12-25 05:29:22,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:22,252 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 05:29:22,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:22,341 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 05:29:22,375 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 05:29:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:22,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:22,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:22,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:22,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:22,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338180305] [2023-12-25 05:29:22,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338180305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:22,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:22,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:22,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3823093] [2023-12-25 05:29:22,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:22,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:22,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:22,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:22,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:22,647 INFO L87 Difference]: Start difference. First operand 515 states and 855 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:22,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:22,789 INFO L93 Difference]: Finished difference Result 984 states and 1640 transitions. [2023-12-25 05:29:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:22,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-12-25 05:29:22,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:22,794 INFO L225 Difference]: With dead ends: 984 [2023-12-25 05:29:22,794 INFO L226 Difference]: Without dead ends: 515 [2023-12-25 05:29:22,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:22,797 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 83 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:22,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2370 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:22,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-12-25 05:29:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2023-12-25 05:29:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 398 states have (on average 1.678391959798995) internal successors, (668), 417 states have internal predecessors, (668), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:22,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 851 transitions. [2023-12-25 05:29:22,815 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 851 transitions. Word has length 98 [2023-12-25 05:29:22,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:22,815 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 851 transitions. [2023-12-25 05:29:22,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:22,815 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 851 transitions. [2023-12-25 05:29:22,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 05:29:22,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:22,818 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:22,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:23,028 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 05:29:23,029 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:23,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:23,029 INFO L85 PathProgramCache]: Analyzing trace with hash -655021616, now seen corresponding path program 1 times [2023-12-25 05:29:23,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:23,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089507930] [2023-12-25 05:29:23,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:23,030 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 05:29:23,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:23,041 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 05:29:23,076 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 05:29:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:23,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:23,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:23,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:23,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:23,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089507930] [2023-12-25 05:29:23,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089507930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:23,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:23,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:23,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62522542] [2023-12-25 05:29:23,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:23,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:23,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:23,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:23,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:23,354 INFO L87 Difference]: Start difference. First operand 515 states and 851 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:23,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:23,517 INFO L93 Difference]: Finished difference Result 984 states and 1636 transitions. [2023-12-25 05:29:23,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:23,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2023-12-25 05:29:23,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:23,523 INFO L225 Difference]: With dead ends: 984 [2023-12-25 05:29:23,523 INFO L226 Difference]: Without dead ends: 515 [2023-12-25 05:29:23,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 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 05:29:23,526 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 78 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:23,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2370 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:23,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-12-25 05:29:23,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2023-12-25 05:29:23,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 398 states have (on average 1.6683417085427135) internal successors, (664), 417 states have internal predecessors, (664), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:23,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 847 transitions. [2023-12-25 05:29:23,543 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 847 transitions. Word has length 99 [2023-12-25 05:29:23,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:23,544 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 847 transitions. [2023-12-25 05:29:23,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:23,544 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 847 transitions. [2023-12-25 05:29:23,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-25 05:29:23,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:23,548 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:23,561 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 05:29:23,758 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 05:29:23,758 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:23,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:23,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1850178896, now seen corresponding path program 1 times [2023-12-25 05:29:23,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:23,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738293870] [2023-12-25 05:29:23,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:23,760 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 05:29:23,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:23,761 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 05:29:23,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-25 05:29:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:24,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:29:24,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:24,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:24,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:24,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738293870] [2023-12-25 05:29:24,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738293870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:24,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:24,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:29:24,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74027874] [2023-12-25 05:29:24,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:24,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:29:24,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:24,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:29:24,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:29:24,114 INFO L87 Difference]: Start difference. First operand 515 states and 847 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:29:24,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:24,255 INFO L93 Difference]: Finished difference Result 984 states and 1632 transitions. [2023-12-25 05:29:24,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:29:24,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2023-12-25 05:29:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:24,259 INFO L225 Difference]: With dead ends: 984 [2023-12-25 05:29:24,259 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:29:24,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 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 05:29:24,263 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 108 mSDsluCounter, 4033 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 4856 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:24,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 4856 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:29:24,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:29:24,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 377 states have (on average 1.6710875331564987) internal successors, (630), 396 states have internal predecessors, (630), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:24,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 813 transitions. [2023-12-25 05:29:24,279 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 813 transitions. Word has length 99 [2023-12-25 05:29:24,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:24,279 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 813 transitions. [2023-12-25 05:29:24,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:29:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 813 transitions. [2023-12-25 05:29:24,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-25 05:29:24,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:24,282 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:24,294 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 05:29:24,491 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 05:29:24,492 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:24,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:24,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1529660887, now seen corresponding path program 1 times [2023-12-25 05:29:24,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:24,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486851751] [2023-12-25 05:29:24,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:24,493 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 05:29:24,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:24,494 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 05:29:24,508 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 05:29:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:24,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:24,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:24,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:24,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:24,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486851751] [2023-12-25 05:29:24,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486851751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:24,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:24,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:24,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943886308] [2023-12-25 05:29:24,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:24,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:24,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:24,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:24,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:24,846 INFO L87 Difference]: Start difference. First operand 494 states and 813 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:24,944 INFO L93 Difference]: Finished difference Result 963 states and 1598 transitions. [2023-12-25 05:29:24,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:24,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2023-12-25 05:29:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:24,949 INFO L225 Difference]: With dead ends: 963 [2023-12-25 05:29:24,950 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:29:24,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:24,953 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 39 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:24,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2356 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:24,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:29:24,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:29:24,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 377 states have (on average 1.6684350132625996) internal successors, (629), 396 states have internal predecessors, (629), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:24,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 812 transitions. [2023-12-25 05:29:24,971 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 812 transitions. Word has length 100 [2023-12-25 05:29:24,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:24,971 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 812 transitions. [2023-12-25 05:29:24,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:24,971 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 812 transitions. [2023-12-25 05:29:24,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-25 05:29:24,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:24,974 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:24,988 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 05:29:25,185 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 05:29:25,186 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:25,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:25,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1662041397, now seen corresponding path program 1 times [2023-12-25 05:29:25,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:25,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496541621] [2023-12-25 05:29:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:25,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:25,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:25,189 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 05:29:25,189 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 05:29:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:25,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:29:25,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:25,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:25,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:25,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496541621] [2023-12-25 05:29:25,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496541621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:25,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:25,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:25,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951477383] [2023-12-25 05:29:25,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:25,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:29:25,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:25,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:29:25,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:29:25,545 INFO L87 Difference]: Start difference. First operand 494 states and 812 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:25,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:25,631 INFO L93 Difference]: Finished difference Result 963 states and 1597 transitions. [2023-12-25 05:29:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:29:25,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 101 [2023-12-25 05:29:25,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:25,635 INFO L225 Difference]: With dead ends: 963 [2023-12-25 05:29:25,635 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:29:25,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:25,638 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 37 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:25,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2356 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:29:25,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:29:25,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 377 states have (on average 1.6657824933687002) internal successors, (628), 396 states have internal predecessors, (628), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:25,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 811 transitions. [2023-12-25 05:29:25,655 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 811 transitions. Word has length 101 [2023-12-25 05:29:25,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:25,656 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 811 transitions. [2023-12-25 05:29:25,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-25 05:29:25,656 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 811 transitions. [2023-12-25 05:29:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 05:29:25,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:25,658 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:25,676 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 05:29:25,868 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 05:29:25,868 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:25,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash 277019762, now seen corresponding path program 1 times [2023-12-25 05:29:25,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:25,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383701108] [2023-12-25 05:29:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:25,869 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 05:29:25,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:25,871 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 05:29:25,872 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 (16)] Waiting until timeout for monitored process [2023-12-25 05:29:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:26,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:29:26,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:26,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:26,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:26,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383701108] [2023-12-25 05:29:26,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383701108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:26,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:26,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:29:26,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441537388] [2023-12-25 05:29:26,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:26,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:29:26,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:26,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:29:26,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:29:26,210 INFO L87 Difference]: Start difference. First operand 494 states and 811 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:29:26,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:26,383 INFO L93 Difference]: Finished difference Result 957 states and 1585 transitions. [2023-12-25 05:29:26,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:29:26,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 102 [2023-12-25 05:29:26,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:26,387 INFO L225 Difference]: With dead ends: 957 [2023-12-25 05:29:26,387 INFO L226 Difference]: Without dead ends: 494 [2023-12-25 05:29:26,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:29:26,392 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 25 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:26,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5470 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:26,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-25 05:29:26,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2023-12-25 05:29:26,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 377 states have (on average 1.663129973474801) internal successors, (627), 396 states have internal predecessors, (627), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-25 05:29:26,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 810 transitions. [2023-12-25 05:29:26,408 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 810 transitions. Word has length 102 [2023-12-25 05:29:26,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:26,409 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 810 transitions. [2023-12-25 05:29:26,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:29:26,409 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 810 transitions. [2023-12-25 05:29:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-25 05:29:26,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:26,412 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:26,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:26,620 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 05:29:26,621 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:26,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:26,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1960265482, now seen corresponding path program 1 times [2023-12-25 05:29:26,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:26,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091813529] [2023-12-25 05:29:26,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:26,622 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 05:29:26,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:26,623 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 05:29:26,658 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 05:29:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:26,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:29:26,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:27,010 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:29:27,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:27,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:27,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091813529] [2023-12-25 05:29:27,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091813529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:27,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:27,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:27,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108234373] [2023-12-25 05:29:27,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:27,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:29:27,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:27,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:29:27,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:27,012 INFO L87 Difference]: Start difference. First operand 494 states and 810 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:27,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:27,710 INFO L93 Difference]: Finished difference Result 954 states and 1603 transitions. [2023-12-25 05:29:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:29:27,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2023-12-25 05:29:27,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:27,714 INFO L225 Difference]: With dead ends: 954 [2023-12-25 05:29:27,714 INFO L226 Difference]: Without dead ends: 498 [2023-12-25 05:29:27,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:29:27,717 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 765 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:27,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1969 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:29:27,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-25 05:29:27,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2023-12-25 05:29:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 380 states have (on average 1.6578947368421053) internal successors, (630), 399 states have internal predecessors, (630), 94 states have call successors, (94), 24 states have call predecessors, (94), 23 states have return successors, (90), 87 states have call predecessors, (90), 89 states have call successors, (90) [2023-12-25 05:29:27,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 814 transitions. [2023-12-25 05:29:27,738 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 814 transitions. Word has length 103 [2023-12-25 05:29:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:27,738 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 814 transitions. [2023-12-25 05:29:27,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 814 transitions. [2023-12-25 05:29:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 05:29:27,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:27,741 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:27,754 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 05:29:27,951 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 05:29:27,951 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:27,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:27,952 INFO L85 PathProgramCache]: Analyzing trace with hash -472320118, now seen corresponding path program 1 times [2023-12-25 05:29:27,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:27,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844206126] [2023-12-25 05:29:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:27,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:27,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:27,954 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 05:29:27,972 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 05:29:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:28,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:29:28,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:29:28,345 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:28,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:28,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844206126] [2023-12-25 05:29:28,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844206126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:28,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:28,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:28,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145722089] [2023-12-25 05:29:28,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:28,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:29:28,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:28,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:29:28,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:28,347 INFO L87 Difference]: Start difference. First operand 498 states and 814 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:29,030 INFO L93 Difference]: Finished difference Result 963 states and 1610 transitions. [2023-12-25 05:29:29,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:29:29,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2023-12-25 05:29:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:29,035 INFO L225 Difference]: With dead ends: 963 [2023-12-25 05:29:29,035 INFO L226 Difference]: Without dead ends: 503 [2023-12-25 05:29:29,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:29:29,038 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 754 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:29,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 1970 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:29:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-12-25 05:29:29,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2023-12-25 05:29:29,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 384 states have (on average 1.6510416666666667) internal successors, (634), 403 states have internal predecessors, (634), 94 states have call successors, (94), 25 states have call predecessors, (94), 24 states have return successors, (91), 87 states have call predecessors, (91), 89 states have call successors, (91) [2023-12-25 05:29:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 819 transitions. [2023-12-25 05:29:29,060 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 819 transitions. Word has length 105 [2023-12-25 05:29:29,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:29,061 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 819 transitions. [2023-12-25 05:29:29,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 819 transitions. [2023-12-25 05:29:29,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-25 05:29:29,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:29,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:29,075 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 05:29:29,272 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 05:29:29,273 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:29,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:29,273 INFO L85 PathProgramCache]: Analyzing trace with hash 133032950, now seen corresponding path program 1 times [2023-12-25 05:29:29,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:29,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236028196] [2023-12-25 05:29:29,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:29,274 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 05:29:29,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:29,275 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 05:29:29,277 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 05:29:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:29,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:29:29,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:29,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:29:29,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:29,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:29,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236028196] [2023-12-25 05:29:29,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236028196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:29,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:29,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:29,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328884312] [2023-12-25 05:29:29,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:29,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:29:29,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:29,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:29:29,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:29,670 INFO L87 Difference]: Start difference. First operand 503 states and 819 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:30,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:30,322 INFO L93 Difference]: Finished difference Result 974 states and 1619 transitions. [2023-12-25 05:29:30,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:29:30,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2023-12-25 05:29:30,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:30,327 INFO L225 Difference]: With dead ends: 974 [2023-12-25 05:29:30,327 INFO L226 Difference]: Without dead ends: 509 [2023-12-25 05:29:30,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:29:30,330 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 762 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:30,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 1970 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:29:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-12-25 05:29:30,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2023-12-25 05:29:30,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 389 states have (on average 1.6426735218508997) internal successors, (639), 408 states have internal predecessors, (639), 94 states have call successors, (94), 26 states have call predecessors, (94), 25 states have return successors, (92), 87 states have call predecessors, (92), 89 states have call successors, (92) [2023-12-25 05:29:30,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 825 transitions. [2023-12-25 05:29:30,351 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 825 transitions. Word has length 107 [2023-12-25 05:29:30,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:30,351 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 825 transitions. [2023-12-25 05:29:30,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 825 transitions. [2023-12-25 05:29:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-25 05:29:30,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:30,354 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:30,367 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 (19)] Ended with exit code 0 [2023-12-25 05:29:30,567 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 05:29:30,567 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:30,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:30,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1761463038, now seen corresponding path program 1 times [2023-12-25 05:29:30,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:30,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41355778] [2023-12-25 05:29:30,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:30,568 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 05:29:30,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:30,569 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 05:29:30,571 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 05:29:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:30,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:29:30,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:30,934 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:29:30,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:30,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:30,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41355778] [2023-12-25 05:29:30,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41355778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:30,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:30,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:30,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561728404] [2023-12-25 05:29:30,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:30,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:29:30,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:30,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:29:30,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:30,937 INFO L87 Difference]: Start difference. First operand 509 states and 825 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:31,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:31,520 INFO L93 Difference]: Finished difference Result 987 states and 1630 transitions. [2023-12-25 05:29:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:29:31,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2023-12-25 05:29:31,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:31,524 INFO L225 Difference]: With dead ends: 987 [2023-12-25 05:29:31,524 INFO L226 Difference]: Without dead ends: 516 [2023-12-25 05:29:31,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:29:31,527 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 751 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:31,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1970 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:29:31,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-25 05:29:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-25 05:29:31,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 395 states have (on average 1.6329113924050633) internal successors, (645), 414 states have internal predecessors, (645), 94 states have call successors, (94), 27 states have call predecessors, (94), 26 states have return successors, (93), 87 states have call predecessors, (93), 89 states have call successors, (93) [2023-12-25 05:29:31,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 832 transitions. [2023-12-25 05:29:31,562 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 832 transitions. Word has length 109 [2023-12-25 05:29:31,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:31,562 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 832 transitions. [2023-12-25 05:29:31,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:31,562 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 832 transitions. [2023-12-25 05:29:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:29:31,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:31,566 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:31,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:31,776 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 05:29:31,776 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:31,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:31,777 INFO L85 PathProgramCache]: Analyzing trace with hash -563655210, now seen corresponding path program 1 times [2023-12-25 05:29:31,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:31,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121152116] [2023-12-25 05:29:31,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:31,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:31,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:31,778 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 05:29:31,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-25 05:29:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:32,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:29:32,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:29:32,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:32,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:32,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121152116] [2023-12-25 05:29:32,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121152116] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:32,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:32,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:29:32,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622724863] [2023-12-25 05:29:32,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:32,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:29:32,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:32,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:29:32,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:29:32,156 INFO L87 Difference]: Start difference. First operand 516 states and 832 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:32,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:32,776 INFO L93 Difference]: Finished difference Result 996 states and 1632 transitions. [2023-12-25 05:29:32,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:29:32,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2023-12-25 05:29:32,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:32,781 INFO L225 Difference]: With dead ends: 996 [2023-12-25 05:29:32,781 INFO L226 Difference]: Without dead ends: 518 [2023-12-25 05:29:32,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:29:32,785 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 742 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:32,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1969 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:29:32,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2023-12-25 05:29:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2023-12-25 05:29:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 396 states have (on average 1.6313131313131313) internal successors, (646), 416 states have internal predecessors, (646), 94 states have call successors, (94), 27 states have call predecessors, (94), 27 states have return successors, (94), 87 states have call predecessors, (94), 89 states have call successors, (94) [2023-12-25 05:29:32,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 834 transitions. [2023-12-25 05:29:32,806 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 834 transitions. Word has length 111 [2023-12-25 05:29:32,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:32,806 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 834 transitions. [2023-12-25 05:29:32,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-25 05:29:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 834 transitions. [2023-12-25 05:29:32,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 05:29:32,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:32,810 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:32,820 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:33,019 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 05:29:33,020 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:33,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:33,020 INFO L85 PathProgramCache]: Analyzing trace with hash -79651594, now seen corresponding path program 1 times [2023-12-25 05:29:33,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:33,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443230442] [2023-12-25 05:29:33,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:33,021 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 05:29:33,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:33,022 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 05:29:33,022 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 05:29:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:33,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:29:33,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:29:33,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:29:34,087 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-25 05:29:34,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:34,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443230442] [2023-12-25 05:29:34,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443230442] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:29:34,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:29:34,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-25 05:29:34,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042772408] [2023-12-25 05:29:34,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:29:34,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:29:34,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:34,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:29:34,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:29:34,090 INFO L87 Difference]: Start difference. First operand 518 states and 834 transitions. Second operand has 18 states, 16 states have (on average 8.8125) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (25), 5 states have call predecessors, (25), 10 states have return successors, (26), 12 states have call predecessors, (26), 7 states have call successors, (26) [2023-12-25 05:29:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:40,910 INFO L93 Difference]: Finished difference Result 1596 states and 2622 transitions. [2023-12-25 05:29:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 05:29:40,912 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.8125) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (25), 5 states have call predecessors, (25), 10 states have return successors, (26), 12 states have call predecessors, (26), 7 states have call successors, (26) Word has length 111 [2023-12-25 05:29:40,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:40,916 INFO L225 Difference]: With dead ends: 1596 [2023-12-25 05:29:40,916 INFO L226 Difference]: Without dead ends: 1116 [2023-12-25 05:29:40,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=694, Unknown=0, NotChecked=0, Total=870 [2023-12-25 05:29:40,919 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 2145 mSDsluCounter, 4907 mSDsCounter, 0 mSdLazyCounter, 9777 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 5730 SdHoareTripleChecker+Invalid, 10459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 9777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:40,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 5730 Invalid, 10459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [682 Valid, 9777 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-25 05:29:40,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2023-12-25 05:29:40,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1101. [2023-12-25 05:29:40,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 825 states have (on average 1.6375757575757577) internal successors, (1351), 867 states have internal predecessors, (1351), 219 states have call successors, (219), 50 states have call predecessors, (219), 56 states have return successors, (236), 214 states have call predecessors, (236), 214 states have call successors, (236) [2023-12-25 05:29:40,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1806 transitions. [2023-12-25 05:29:40,975 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1806 transitions. Word has length 111 [2023-12-25 05:29:40,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:40,976 INFO L495 AbstractCegarLoop]: Abstraction has 1101 states and 1806 transitions. [2023-12-25 05:29:40,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.8125) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (25), 5 states have call predecessors, (25), 10 states have return successors, (26), 12 states have call predecessors, (26), 7 states have call successors, (26) [2023-12-25 05:29:40,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1806 transitions. [2023-12-25 05:29:40,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 05:29:40,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:40,980 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:40,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-12-25 05:29:41,188 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 05:29:41,188 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:41,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:41,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2057125592, now seen corresponding path program 1 times [2023-12-25 05:29:41,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:41,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941990479] [2023-12-25 05:29:41,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:41,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:41,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:41,190 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 05:29:41,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 05:29:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:41,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:29:41,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:41,506 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:29:41,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:41,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:41,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941990479] [2023-12-25 05:29:41,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941990479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:41,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:41,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:29:41,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368363516] [2023-12-25 05:29:41,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:41,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:29:41,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:41,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:29:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:29:41,508 INFO L87 Difference]: Start difference. First operand 1101 states and 1806 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:29:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:41,695 INFO L93 Difference]: Finished difference Result 1583 states and 2595 transitions. [2023-12-25 05:29:41,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:29:41,695 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), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 114 [2023-12-25 05:29:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:41,698 INFO L225 Difference]: With dead ends: 1583 [2023-12-25 05:29:41,698 INFO L226 Difference]: Without dead ends: 510 [2023-12-25 05:29:41,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:29:41,702 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 24 mSDsluCounter, 4632 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5407 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:41,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5407 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:29:41,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-25 05:29:41,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-25 05:29:41,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 390 states have (on average 1.6256410256410256) internal successors, (634), 410 states have internal predecessors, (634), 92 states have call successors, (92), 27 states have call predecessors, (92), 27 states have return successors, (92), 85 states have call predecessors, (92), 87 states have call successors, (92) [2023-12-25 05:29:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 818 transitions. [2023-12-25 05:29:41,723 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 818 transitions. Word has length 114 [2023-12-25 05:29:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:41,724 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 818 transitions. [2023-12-25 05:29:41,724 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), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-25 05:29:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 818 transitions. [2023-12-25 05:29:41,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:29:41,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:41,726 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:41,735 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 05:29:41,934 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 05:29:41,935 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:41,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:41,935 INFO L85 PathProgramCache]: Analyzing trace with hash -683531872, now seen corresponding path program 1 times [2023-12-25 05:29:41,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:41,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687711359] [2023-12-25 05:29:41,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:41,936 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 05:29:41,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:41,937 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 05:29:41,940 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 05:29:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:42,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:29:42,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:42,441 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:29:42,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:29:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:29:42,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:42,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687711359] [2023-12-25 05:29:42,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687711359] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:29:42,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:29:42,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-25 05:29:42,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835587375] [2023-12-25 05:29:42,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:29:42,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:29:42,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:29:42,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:29:42,847 INFO L87 Difference]: Start difference. First operand 510 states and 818 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 12 states have internal predecessors, (143), 8 states have call successors, (26), 5 states have call predecessors, (26), 8 states have return successors, (26), 10 states have call predecessors, (26), 7 states have call successors, (26) [2023-12-25 05:29:45,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:45,495 INFO L93 Difference]: Finished difference Result 989 states and 1607 transitions. [2023-12-25 05:29:45,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:29:45,496 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 12 states have internal predecessors, (143), 8 states have call successors, (26), 5 states have call predecessors, (26), 8 states have return successors, (26), 10 states have call predecessors, (26), 7 states have call successors, (26) Word has length 118 [2023-12-25 05:29:45,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:45,498 INFO L225 Difference]: With dead ends: 989 [2023-12-25 05:29:45,498 INFO L226 Difference]: Without dead ends: 514 [2023-12-25 05:29:45,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:29:45,500 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1224 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 5180 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 5530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 5180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:45,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 2728 Invalid, 5530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 5180 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:29:45,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-12-25 05:29:45,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 512. [2023-12-25 05:29:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 392 states have (on average 1.6224489795918366) internal successors, (636), 411 states have internal predecessors, (636), 92 states have call successors, (92), 27 states have call predecessors, (92), 27 states have return successors, (92), 86 states have call predecessors, (92), 87 states have call successors, (92) [2023-12-25 05:29:45,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 820 transitions. [2023-12-25 05:29:45,543 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 820 transitions. Word has length 118 [2023-12-25 05:29:45,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:45,543 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 820 transitions. [2023-12-25 05:29:45,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 12 states have internal predecessors, (143), 8 states have call successors, (26), 5 states have call predecessors, (26), 8 states have return successors, (26), 10 states have call predecessors, (26), 7 states have call successors, (26) [2023-12-25 05:29:45,543 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 820 transitions. [2023-12-25 05:29:45,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-25 05:29:45,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:45,546 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:45,554 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 05:29:45,754 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 05:29:45,754 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:45,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:45,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1347126294, now seen corresponding path program 1 times [2023-12-25 05:29:45,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:45,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080670798] [2023-12-25 05:29:45,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:45,755 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 05:29:45,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:45,756 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 05:29:45,757 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 05:29:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:46,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:29:46,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:46,170 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:29:46,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:29:46,452 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:29:46,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:46,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080670798] [2023-12-25 05:29:46,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080670798] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:29:46,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:29:46,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-25 05:29:46,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704095071] [2023-12-25 05:29:46,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:29:46,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:29:46,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:46,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:29:46,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:29:46,455 INFO L87 Difference]: Start difference. First operand 512 states and 820 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (21), 5 states have call predecessors, (21), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2023-12-25 05:29:50,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:50,322 INFO L93 Difference]: Finished difference Result 1942 states and 3183 transitions. [2023-12-25 05:29:50,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 05:29:50,324 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (21), 5 states have call predecessors, (21), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) Word has length 119 [2023-12-25 05:29:50,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:50,331 INFO L225 Difference]: With dead ends: 1942 [2023-12-25 05:29:50,331 INFO L226 Difference]: Without dead ends: 1463 [2023-12-25 05:29:50,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-12-25 05:29:50,334 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 4777 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 4829 mSolverCounterSat, 1413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4859 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 6242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1413 IncrementalHoareTripleChecker+Valid, 4829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:50,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4859 Valid, 2412 Invalid, 6242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1413 Valid, 4829 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 05:29:50,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2023-12-25 05:29:50,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1403. [2023-12-25 05:29:50,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1072 states have (on average 1.6222014925373134) internal successors, (1739), 1118 states have internal predecessors, (1739), 256 states have call successors, (256), 74 states have call predecessors, (256), 74 states have return successors, (277), 247 states have call predecessors, (277), 251 states have call successors, (277) [2023-12-25 05:29:50,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 2272 transitions. [2023-12-25 05:29:50,453 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 2272 transitions. Word has length 119 [2023-12-25 05:29:50,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:50,453 INFO L495 AbstractCegarLoop]: Abstraction has 1403 states and 2272 transitions. [2023-12-25 05:29:50,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (21), 5 states have call predecessors, (21), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2023-12-25 05:29:50,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 2272 transitions. [2023-12-25 05:29:50,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:29:50,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:50,456 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:50,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:50,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:50,666 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:50,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:50,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1444373641, now seen corresponding path program 1 times [2023-12-25 05:29:50,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:50,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736369903] [2023-12-25 05:29:50,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:50,667 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 05:29:50,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:50,669 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:29:50,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 05:29:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:50,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:29:50,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:51,120 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:29:51,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:51,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:51,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736369903] [2023-12-25 05:29:51,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736369903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:51,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:51,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:29:51,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020361289] [2023-12-25 05:29:51,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:51,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:29:51,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:51,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:29:51,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:29:51,123 INFO L87 Difference]: Start difference. First operand 1403 states and 2272 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:29:55,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:55,035 INFO L93 Difference]: Finished difference Result 4545 states and 7531 transitions. [2023-12-25 05:29:55,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:29:55,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 121 [2023-12-25 05:29:55,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:55,048 INFO L225 Difference]: With dead ends: 4545 [2023-12-25 05:29:55,048 INFO L226 Difference]: Without dead ends: 3177 [2023-12-25 05:29:55,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:29:55,053 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 2469 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 5508 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 6110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 5508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:55,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2576 Valid, 2218 Invalid, 6110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 5508 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 05:29:55,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2023-12-25 05:29:55,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 3055. [2023-12-25 05:29:55,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3055 states, 2294 states have (on average 1.616826503923278) internal successors, (3709), 2403 states have internal predecessors, (3709), 607 states have call successors, (607), 143 states have call predecessors, (607), 153 states have return successors, (722), 597 states have call predecessors, (722), 602 states have call successors, (722) [2023-12-25 05:29:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 5038 transitions. [2023-12-25 05:29:55,280 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 5038 transitions. Word has length 121 [2023-12-25 05:29:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:55,281 INFO L495 AbstractCegarLoop]: Abstraction has 3055 states and 5038 transitions. [2023-12-25 05:29:55,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:29:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 5038 transitions. [2023-12-25 05:29:55,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:29:55,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:55,283 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:55,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:55,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:55,492 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:55,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1164023752, now seen corresponding path program 1 times [2023-12-25 05:29:55,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:55,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799058364] [2023-12-25 05:29:55,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:55,494 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 05:29:55,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:55,495 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:29:55,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 05:29:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:55,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 05:29:55,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:29:55,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:55,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:55,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799058364] [2023-12-25 05:29:55,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799058364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:55,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:55,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:29:55,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356711529] [2023-12-25 05:29:55,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:55,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:29:55,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:55,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:29:55,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:29:55,908 INFO L87 Difference]: Start difference. First operand 3055 states and 5038 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:29:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:29:57,578 INFO L93 Difference]: Finished difference Result 6784 states and 11142 transitions. [2023-12-25 05:29:57,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:29:57,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 121 [2023-12-25 05:29:57,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:29:57,608 INFO L225 Difference]: With dead ends: 6784 [2023-12-25 05:29:57,608 INFO L226 Difference]: Without dead ends: 4458 [2023-12-25 05:29:57,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 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 05:29:57,623 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 1588 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:29:57,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 1062 Invalid, 1873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 05:29:57,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2023-12-25 05:29:58,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4429. [2023-12-25 05:29:58,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4429 states, 3203 states have (on average 1.5800811738994693) internal successors, (5061), 3390 states have internal predecessors, (5061), 1007 states have call successors, (1007), 192 states have call predecessors, (1007), 218 states have return successors, (1216), 991 states have call predecessors, (1216), 1002 states have call successors, (1216) [2023-12-25 05:29:58,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4429 states to 4429 states and 7284 transitions. [2023-12-25 05:29:58,065 INFO L78 Accepts]: Start accepts. Automaton has 4429 states and 7284 transitions. Word has length 121 [2023-12-25 05:29:58,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:29:58,065 INFO L495 AbstractCegarLoop]: Abstraction has 4429 states and 7284 transitions. [2023-12-25 05:29:58,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-12-25 05:29:58,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4429 states and 7284 transitions. [2023-12-25 05:29:58,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:29:58,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:29:58,068 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:29:58,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 05:29:58,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:29:58,278 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:29:58,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:29:58,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1607924426, now seen corresponding path program 1 times [2023-12-25 05:29:58,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:29:58,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898941447] [2023-12-25 05:29:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:29:58,279 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 05:29:58,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:29:58,281 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:29:58,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 05:29:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:29:58,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:29:58,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:29:58,704 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:29:58,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:29:58,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:29:58,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898941447] [2023-12-25 05:29:58,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898941447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:29:58,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:29:58,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:29:58,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386655866] [2023-12-25 05:29:58,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:29:58,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:29:58,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:29:58,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:29:58,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:29:58,706 INFO L87 Difference]: Start difference. First operand 4429 states and 7284 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-12-25 05:30:02,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:02,341 INFO L93 Difference]: Finished difference Result 13113 states and 21928 transitions. [2023-12-25 05:30:02,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 05:30:02,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 121 [2023-12-25 05:30:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:02,398 INFO L225 Difference]: With dead ends: 13113 [2023-12-25 05:30:02,399 INFO L226 Difference]: Without dead ends: 9473 [2023-12-25 05:30:02,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-12-25 05:30:02,423 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 2835 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 3749 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 4330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 3749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:02,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 1865 Invalid, 4330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 3749 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-25 05:30:02,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9473 states. [2023-12-25 05:30:03,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9473 to 9030. [2023-12-25 05:30:03,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9030 states, 6554 states have (on average 1.5782728104974062) internal successors, (10344), 6919 states have internal predecessors, (10344), 2021 states have call successors, (2021), 367 states have call predecessors, (2021), 454 states have return successors, (2601), 2004 states have call predecessors, (2601), 2016 states have call successors, (2601) [2023-12-25 05:30:03,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9030 states to 9030 states and 14966 transitions. [2023-12-25 05:30:03,276 INFO L78 Accepts]: Start accepts. Automaton has 9030 states and 14966 transitions. Word has length 121 [2023-12-25 05:30:03,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:03,276 INFO L495 AbstractCegarLoop]: Abstraction has 9030 states and 14966 transitions. [2023-12-25 05:30:03,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-12-25 05:30:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 9030 states and 14966 transitions. [2023-12-25 05:30:03,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-25 05:30:03,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:03,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:03,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:03,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:03,488 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:03,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:03,489 INFO L85 PathProgramCache]: Analyzing trace with hash -971730339, now seen corresponding path program 1 times [2023-12-25 05:30:03,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:03,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426159578] [2023-12-25 05:30:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:03,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:03,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:03,491 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:03,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-25 05:30:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:03,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:30:03,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-25 05:30:03,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:03,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:03,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426159578] [2023-12-25 05:30:03,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426159578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:03,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:03,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-25 05:30:03,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873982649] [2023-12-25 05:30:03,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:03,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:30:03,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:30:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:30:03,965 INFO L87 Difference]: Start difference. First operand 9030 states and 14966 transitions. Second operand has 11 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 6 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (15), 8 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:30:06,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:06,693 INFO L93 Difference]: Finished difference Result 17227 states and 28706 transitions. [2023-12-25 05:30:06,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:30:06,694 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 6 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (15), 8 states have call predecessors, (15), 5 states have call successors, (15) Word has length 122 [2023-12-25 05:30:06,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:06,747 INFO L225 Difference]: With dead ends: 17227 [2023-12-25 05:30:06,747 INFO L226 Difference]: Without dead ends: 8990 [2023-12-25 05:30:06,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:30:06,787 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1333 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 3458 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 3809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 3458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:06,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 1942 Invalid, 3809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 3458 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 05:30:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8990 states. [2023-12-25 05:30:07,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8990 to 8990. [2023-12-25 05:30:07,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 6534 states have (on average 1.5779002142638505) internal successors, (10310), 6899 states have internal predecessors, (10310), 2007 states have call successors, (2007), 361 states have call predecessors, (2007), 448 states have return successors, (2587), 1990 states have call predecessors, (2587), 2002 states have call successors, (2587) [2023-12-25 05:30:07,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 14904 transitions. [2023-12-25 05:30:07,638 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 14904 transitions. Word has length 122 [2023-12-25 05:30:07,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:07,638 INFO L495 AbstractCegarLoop]: Abstraction has 8990 states and 14904 transitions. [2023-12-25 05:30:07,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 6 states have call successors, (15), 4 states have call predecessors, (15), 6 states have return successors, (15), 8 states have call predecessors, (15), 5 states have call successors, (15) [2023-12-25 05:30:07,639 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 14904 transitions. [2023-12-25 05:30:07,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-25 05:30:07,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:07,643 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:07,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:07,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:07,853 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:07,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:07,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1719686650, now seen corresponding path program 1 times [2023-12-25 05:30:07,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:07,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930910902] [2023-12-25 05:30:07,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:07,855 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 05:30:07,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:07,857 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:07,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-25 05:30:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:08,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:30:08,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:30:08,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:08,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:08,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930910902] [2023-12-25 05:30:08,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930910902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:08,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:08,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:30:08,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177239100] [2023-12-25 05:30:08,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:08,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:30:08,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:08,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:30:08,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:30:08,367 INFO L87 Difference]: Start difference. First operand 8990 states and 14904 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:30:12,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:12,802 INFO L93 Difference]: Finished difference Result 18872 states and 31398 transitions. [2023-12-25 05:30:12,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:30:12,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2023-12-25 05:30:12,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:12,864 INFO L225 Difference]: With dead ends: 18872 [2023-12-25 05:30:12,864 INFO L226 Difference]: Without dead ends: 10627 [2023-12-25 05:30:12,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-12-25 05:30:12,901 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 1885 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 4787 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 5249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 4787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:12,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 2416 Invalid, 5249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 4787 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-25 05:30:12,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10627 states. [2023-12-25 05:30:13,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10627 to 9762. [2023-12-25 05:30:13,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9762 states, 7076 states have (on average 1.553985302430752) internal successors, (10996), 7489 states have internal predecessors, (10996), 2161 states have call successors, (2161), 425 states have call predecessors, (2161), 524 states have return successors, (2897), 2108 states have call predecessors, (2897), 2156 states have call successors, (2897) [2023-12-25 05:30:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9762 states to 9762 states and 16054 transitions. [2023-12-25 05:30:13,880 INFO L78 Accepts]: Start accepts. Automaton has 9762 states and 16054 transitions. Word has length 125 [2023-12-25 05:30:13,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:13,881 INFO L495 AbstractCegarLoop]: Abstraction has 9762 states and 16054 transitions. [2023-12-25 05:30:13,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:30:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand 9762 states and 16054 transitions. [2023-12-25 05:30:13,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 05:30:13,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:13,889 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:13,896 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 (30)] Ended with exit code 0 [2023-12-25 05:30:14,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:14,096 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:14,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:14,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2106251788, now seen corresponding path program 1 times [2023-12-25 05:30:14,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:14,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36517985] [2023-12-25 05:30:14,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:14,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:14,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:14,099 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:14,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 05:30:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:14,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:30:14,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:14,443 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:30:14,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:14,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:14,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36517985] [2023-12-25 05:30:14,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36517985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:14,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:14,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:30:14,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259356686] [2023-12-25 05:30:14,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:14,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:30:14,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:14,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:30:14,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:14,445 INFO L87 Difference]: Start difference. First operand 9762 states and 16054 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:30:15,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:15,482 INFO L93 Difference]: Finished difference Result 19297 states and 32050 transitions. [2023-12-25 05:30:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:30:15,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 132 [2023-12-25 05:30:15,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:15,537 INFO L225 Difference]: With dead ends: 19297 [2023-12-25 05:30:15,537 INFO L226 Difference]: Without dead ends: 9762 [2023-12-25 05:30:15,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:15,578 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 399 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:15,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 2793 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:15,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9762 states. [2023-12-25 05:30:16,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9762 to 9762. [2023-12-25 05:30:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9762 states, 7076 states have (on average 1.5387224420576597) internal successors, (10888), 7489 states have internal predecessors, (10888), 2161 states have call successors, (2161), 425 states have call predecessors, (2161), 524 states have return successors, (2897), 2108 states have call predecessors, (2897), 2156 states have call successors, (2897) [2023-12-25 05:30:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9762 states to 9762 states and 15946 transitions. [2023-12-25 05:30:16,692 INFO L78 Accepts]: Start accepts. Automaton has 9762 states and 15946 transitions. Word has length 132 [2023-12-25 05:30:16,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:16,693 INFO L495 AbstractCegarLoop]: Abstraction has 9762 states and 15946 transitions. [2023-12-25 05:30:16,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-25 05:30:16,693 INFO L276 IsEmpty]: Start isEmpty. Operand 9762 states and 15946 transitions. [2023-12-25 05:30:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:30:16,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:16,697 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:16,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:16,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:16,905 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:16,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:16,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1175283475, now seen corresponding path program 1 times [2023-12-25 05:30:16,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:16,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457337397] [2023-12-25 05:30:16,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:16,906 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 05:30:16,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:16,908 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:16,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-25 05:30:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:17,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:30:17,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:17,336 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:30:17,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:17,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:17,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457337397] [2023-12-25 05:30:17,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457337397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:17,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:17,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:30:17,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627604771] [2023-12-25 05:30:17,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:17,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:30:17,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:17,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:30:17,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:30:17,338 INFO L87 Difference]: Start difference. First operand 9762 states and 15946 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-25 05:30:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:20,323 INFO L93 Difference]: Finished difference Result 19755 states and 32628 transitions. [2023-12-25 05:30:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:30:20,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 137 [2023-12-25 05:30:20,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:20,395 INFO L225 Difference]: With dead ends: 19755 [2023-12-25 05:30:20,395 INFO L226 Difference]: Without dead ends: 10951 [2023-12-25 05:30:20,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:30:20,498 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1887 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 3569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:20,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 1537 Invalid, 3569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 3127 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-25 05:30:20,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2023-12-25 05:30:21,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 10128. [2023-12-25 05:30:21,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10128 states, 7346 states have (on average 1.5311734277157636) internal successors, (11248), 7785 states have internal predecessors, (11248), 2201 states have call successors, (2201), 455 states have call predecessors, (2201), 580 states have return successors, (3075), 2148 states have call predecessors, (3075), 2196 states have call successors, (3075) [2023-12-25 05:30:21,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10128 states to 10128 states and 16524 transitions. [2023-12-25 05:30:21,245 INFO L78 Accepts]: Start accepts. Automaton has 10128 states and 16524 transitions. Word has length 137 [2023-12-25 05:30:21,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:21,245 INFO L495 AbstractCegarLoop]: Abstraction has 10128 states and 16524 transitions. [2023-12-25 05:30:21,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-25 05:30:21,245 INFO L276 IsEmpty]: Start isEmpty. Operand 10128 states and 16524 transitions. [2023-12-25 05:30:21,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:30:21,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:21,249 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:21,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:21,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:21,457 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:21,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:21,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1466971936, now seen corresponding path program 1 times [2023-12-25 05:30:21,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:21,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770624844] [2023-12-25 05:30:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:21,458 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 05:30:21,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:21,459 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:21,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-25 05:30:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:21,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:30:21,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:21,860 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 05:30:21,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:21,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:21,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770624844] [2023-12-25 05:30:21,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770624844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:21,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:21,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:30:21,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855624600] [2023-12-25 05:30:21,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:21,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:30:21,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:21,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:30:21,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:21,862 INFO L87 Difference]: Start difference. First operand 10128 states and 16524 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-25 05:30:25,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:25,232 INFO L93 Difference]: Finished difference Result 19717 states and 32294 transitions. [2023-12-25 05:30:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:30:25,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) Word has length 141 [2023-12-25 05:30:25,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:25,286 INFO L225 Difference]: With dead ends: 19717 [2023-12-25 05:30:25,287 INFO L226 Difference]: Without dead ends: 10542 [2023-12-25 05:30:25,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:30:25,326 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1545 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 3841 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 4204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 3841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:25,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 1959 Invalid, 4204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 3841 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:30:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10542 states. [2023-12-25 05:30:26,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10542 to 9735. [2023-12-25 05:30:26,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9735 states, 7055 states have (on average 1.5275690999291283) internal successors, (10777), 7485 states have internal predecessors, (10777), 2125 states have call successors, (2125), 445 states have call predecessors, (2125), 554 states have return successors, (2904), 2065 states have call predecessors, (2904), 2120 states have call successors, (2904) [2023-12-25 05:30:26,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9735 states to 9735 states and 15806 transitions. [2023-12-25 05:30:26,135 INFO L78 Accepts]: Start accepts. Automaton has 9735 states and 15806 transitions. Word has length 141 [2023-12-25 05:30:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:26,135 INFO L495 AbstractCegarLoop]: Abstraction has 9735 states and 15806 transitions. [2023-12-25 05:30:26,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-25 05:30:26,136 INFO L276 IsEmpty]: Start isEmpty. Operand 9735 states and 15806 transitions. [2023-12-25 05:30:26,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-25 05:30:26,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:26,139 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:26,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:26,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:26,349 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:26,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:26,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1607520546, now seen corresponding path program 1 times [2023-12-25 05:30:26,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:26,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995619055] [2023-12-25 05:30:26,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:26,350 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 05:30:26,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:26,351 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:26,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-25 05:30:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:26,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:30:26,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:30:26,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:26,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:26,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995619055] [2023-12-25 05:30:26,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995619055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:26,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:26,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:30:26,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801653286] [2023-12-25 05:30:26,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:26,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:30:26,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:26,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:30:26,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:30:26,853 INFO L87 Difference]: Start difference. First operand 9735 states and 15806 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-25 05:30:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:30,113 INFO L93 Difference]: Finished difference Result 22076 states and 36174 transitions. [2023-12-25 05:30:30,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 05:30:30,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 4 states have call successors, (16) Word has length 141 [2023-12-25 05:30:30,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:30,188 INFO L225 Difference]: With dead ends: 22076 [2023-12-25 05:30:30,189 INFO L226 Difference]: Without dead ends: 13274 [2023-12-25 05:30:30,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:30:30,224 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1664 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 3163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:30,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 1356 Invalid, 3163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [405 Valid, 2758 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-25 05:30:30,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13274 states. [2023-12-25 05:30:31,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13274 to 13061. [2023-12-25 05:30:31,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13061 states, 9409 states have (on average 1.520140291210543) internal successors, (14303), 10034 states have internal predecessors, (14303), 2905 states have call successors, (2905), 606 states have call predecessors, (2905), 746 states have return successors, (4008), 2797 states have call predecessors, (4008), 2900 states have call successors, (4008) [2023-12-25 05:30:31,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13061 states to 13061 states and 21216 transitions. [2023-12-25 05:30:31,141 INFO L78 Accepts]: Start accepts. Automaton has 13061 states and 21216 transitions. Word has length 141 [2023-12-25 05:30:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:31,141 INFO L495 AbstractCegarLoop]: Abstraction has 13061 states and 21216 transitions. [2023-12-25 05:30:31,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-25 05:30:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 13061 states and 21216 transitions. [2023-12-25 05:30:31,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-25 05:30:31,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:31,145 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:31,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:31,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:31,355 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:31,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:31,355 INFO L85 PathProgramCache]: Analyzing trace with hash 540398592, now seen corresponding path program 1 times [2023-12-25 05:30:31,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:31,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937062319] [2023-12-25 05:30:31,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:31,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:31,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:31,357 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:31,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-25 05:30:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:31,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:30:31,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:30:31,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:31,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:31,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937062319] [2023-12-25 05:30:31,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937062319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:31,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:31,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:31,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112967254] [2023-12-25 05:30:31,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:31,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:30:31,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:31,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:30:31,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:31,771 INFO L87 Difference]: Start difference. First operand 13061 states and 21216 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-25 05:30:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:33,006 INFO L93 Difference]: Finished difference Result 13155 states and 21370 transitions. [2023-12-25 05:30:33,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:30:33,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 142 [2023-12-25 05:30:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:33,083 INFO L225 Difference]: With dead ends: 13155 [2023-12-25 05:30:33,083 INFO L226 Difference]: Without dead ends: 13140 [2023-12-25 05:30:33,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:33,096 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 737 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:33,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1931 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:30:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13140 states. [2023-12-25 05:30:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13140 to 13067. [2023-12-25 05:30:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13067 states, 9415 states have (on average 1.5198088157195964) internal successors, (14309), 10040 states have internal predecessors, (14309), 2905 states have call successors, (2905), 606 states have call predecessors, (2905), 746 states have return successors, (4008), 2797 states have call predecessors, (4008), 2900 states have call successors, (4008) [2023-12-25 05:30:34,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13067 states to 13067 states and 21222 transitions. [2023-12-25 05:30:34,053 INFO L78 Accepts]: Start accepts. Automaton has 13067 states and 21222 transitions. Word has length 142 [2023-12-25 05:30:34,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:34,054 INFO L495 AbstractCegarLoop]: Abstraction has 13067 states and 21222 transitions. [2023-12-25 05:30:34,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-25 05:30:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 13067 states and 21222 transitions. [2023-12-25 05:30:34,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:30:34,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:34,057 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:34,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:34,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:34,267 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:34,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:34,267 INFO L85 PathProgramCache]: Analyzing trace with hash -325436055, now seen corresponding path program 1 times [2023-12-25 05:30:34,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:34,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624356277] [2023-12-25 05:30:34,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:34,268 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 05:30:34,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:34,269 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:34,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-25 05:30:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:34,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:30:34,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:30:34,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:34,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:34,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624356277] [2023-12-25 05:30:34,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624356277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:34,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:34,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:30:34,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345790446] [2023-12-25 05:30:34,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:34,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:30:34,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:34,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:30:34,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:30:34,543 INFO L87 Difference]: Start difference. First operand 13067 states and 21222 transitions. Second operand has 5 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-25 05:30:35,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:35,347 INFO L93 Difference]: Finished difference Result 13088 states and 21249 transitions. [2023-12-25 05:30:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:30:35,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 1 states have call successors, (17) Word has length 147 [2023-12-25 05:30:35,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:35,410 INFO L225 Difference]: With dead ends: 13088 [2023-12-25 05:30:35,410 INFO L226 Difference]: Without dead ends: 13073 [2023-12-25 05:30:35,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:30:35,423 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 34 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:35,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3035 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 05:30:35,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13073 states. [2023-12-25 05:30:36,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13073 to 13067. [2023-12-25 05:30:36,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13067 states, 9415 states have (on average 1.5172596919808816) internal successors, (14285), 10040 states have internal predecessors, (14285), 2905 states have call successors, (2905), 606 states have call predecessors, (2905), 746 states have return successors, (4008), 2797 states have call predecessors, (4008), 2900 states have call successors, (4008) [2023-12-25 05:30:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13067 states to 13067 states and 21198 transitions. [2023-12-25 05:30:36,454 INFO L78 Accepts]: Start accepts. Automaton has 13067 states and 21198 transitions. Word has length 147 [2023-12-25 05:30:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:36,455 INFO L495 AbstractCegarLoop]: Abstraction has 13067 states and 21198 transitions. [2023-12-25 05:30:36,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-25 05:30:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand 13067 states and 21198 transitions. [2023-12-25 05:30:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-25 05:30:36,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:36,458 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:36,465 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 (36)] Ended with exit code 0 [2023-12-25 05:30:36,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:36,659 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:36,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:36,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1700208292, now seen corresponding path program 1 times [2023-12-25 05:30:36,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:36,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576512544] [2023-12-25 05:30:36,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:36,661 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 05:30:36,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:36,662 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:36,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-25 05:30:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:36,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:30:36,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 05:30:37,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:37,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:37,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576512544] [2023-12-25 05:30:37,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576512544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:37,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:37,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:30:37,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630594070] [2023-12-25 05:30:37,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:37,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:30:37,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:37,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:30:37,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:30:37,063 INFO L87 Difference]: Start difference. First operand 13067 states and 21198 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:30:39,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:39,473 INFO L93 Difference]: Finished difference Result 26090 states and 42347 transitions. [2023-12-25 05:30:39,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:30:39,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) Word has length 156 [2023-12-25 05:30:39,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:39,522 INFO L225 Difference]: With dead ends: 26090 [2023-12-25 05:30:39,523 INFO L226 Difference]: Without dead ends: 13067 [2023-12-25 05:30:39,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-25 05:30:39,553 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1154 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:39,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1370 Invalid, 2839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 2503 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 05:30:39,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13067 states. [2023-12-25 05:30:40,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13067 to 13067. [2023-12-25 05:30:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13067 states, 9415 states have (on average 1.5147105682421667) internal successors, (14261), 10040 states have internal predecessors, (14261), 2905 states have call successors, (2905), 606 states have call predecessors, (2905), 746 states have return successors, (4008), 2797 states have call predecessors, (4008), 2900 states have call successors, (4008) [2023-12-25 05:30:40,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13067 states to 13067 states and 21174 transitions. [2023-12-25 05:30:40,533 INFO L78 Accepts]: Start accepts. Automaton has 13067 states and 21174 transitions. Word has length 156 [2023-12-25 05:30:40,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:40,533 INFO L495 AbstractCegarLoop]: Abstraction has 13067 states and 21174 transitions. [2023-12-25 05:30:40,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-25 05:30:40,534 INFO L276 IsEmpty]: Start isEmpty. Operand 13067 states and 21174 transitions. [2023-12-25 05:30:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-25 05:30:40,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:40,536 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:40,544 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 (37)] Ended with exit code 0 [2023-12-25 05:30:40,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:40,739 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:40,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1853715426, now seen corresponding path program 1 times [2023-12-25 05:30:40,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:40,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076499539] [2023-12-25 05:30:40,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:40,740 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 05:30:40,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:40,741 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:40,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-25 05:30:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:41,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:30:41,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-12-25 05:30:41,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:41,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:41,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076499539] [2023-12-25 05:30:41,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076499539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:41,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:41,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:30:41,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794761549] [2023-12-25 05:30:41,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:41,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:30:41,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:41,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:30:41,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:30:41,055 INFO L87 Difference]: Start difference. First operand 13067 states and 21174 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-25 05:30:41,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:41,922 INFO L93 Difference]: Finished difference Result 13294 states and 21603 transitions. [2023-12-25 05:30:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:30:41,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 165 [2023-12-25 05:30:41,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:41,972 INFO L225 Difference]: With dead ends: 13294 [2023-12-25 05:30:41,973 INFO L226 Difference]: Without dead ends: 13279 [2023-12-25 05:30:41,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 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 05:30:41,982 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 47 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:41,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2354 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13279 states. [2023-12-25 05:30:42,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13279 to 13091. [2023-12-25 05:30:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13091 states, 9439 states have (on average 1.5121305223010912) internal successors, (14273), 10064 states have internal predecessors, (14273), 2905 states have call successors, (2905), 606 states have call predecessors, (2905), 746 states have return successors, (4008), 2797 states have call predecessors, (4008), 2900 states have call successors, (4008) [2023-12-25 05:30:42,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 21186 transitions. [2023-12-25 05:30:42,877 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 21186 transitions. Word has length 165 [2023-12-25 05:30:42,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:42,877 INFO L495 AbstractCegarLoop]: Abstraction has 13091 states and 21186 transitions. [2023-12-25 05:30:42,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-25 05:30:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 21186 transitions. [2023-12-25 05:30:42,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-25 05:30:42,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:42,881 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:30:42,888 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 (38)] Ended with exit code 0 [2023-12-25 05:30:43,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:30:43,082 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:43,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:43,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2064794060, now seen corresponding path program 1 times [2023-12-25 05:30:43,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:43,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962978210] [2023-12-25 05:30:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:43,083 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 05:30:43,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:43,084 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 05:30:43,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-25 05:30:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:43,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:30:43,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:43,546 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 100 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-25 05:30:43,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:30:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-12-25 05:30:43,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:43,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962978210] [2023-12-25 05:30:43,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962978210] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:30:43,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:30:43,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-12-25 05:30:43,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853411291] [2023-12-25 05:30:43,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:30:43,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 05:30:43,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:43,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 05:30:43,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:30:43,907 INFO L87 Difference]: Start difference. First operand 13091 states and 21186 transitions. Second operand has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 13 states have internal predecessors, (172), 8 states have call successors, (36), 5 states have call predecessors, (36), 10 states have return successors, (37), 10 states have call predecessors, (37), 7 states have call successors, (37) [2023-12-25 05:30:50,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:50,592 INFO L93 Difference]: Finished difference Result 42594 states and 69850 transitions. [2023-12-25 05:30:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 05:30:50,592 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 13 states have internal predecessors, (172), 8 states have call successors, (36), 5 states have call predecessors, (36), 10 states have return successors, (37), 10 states have call predecessors, (37), 7 states have call successors, (37) Word has length 199 [2023-12-25 05:30:50,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:50,761 INFO L225 Difference]: With dead ends: 42594 [2023-12-25 05:30:50,761 INFO L226 Difference]: Without dead ends: 29543 [2023-12-25 05:30:50,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2023-12-25 05:30:50,813 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 4477 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 7535 mSolverCounterSat, 1144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4579 SdHoareTripleChecker+Valid, 4348 SdHoareTripleChecker+Invalid, 8679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1144 IncrementalHoareTripleChecker+Valid, 7535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:50,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4579 Valid, 4348 Invalid, 8679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1144 Valid, 7535 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-25 05:30:50,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29543 states. [2023-12-25 05:30:53,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29543 to 29480. [2023-12-25 05:30:53,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29480 states, 20738 states have (on average 1.517070112836339) internal successors, (31461), 22216 states have internal predecessors, (31461), 7181 states have call successors, (7181), 1189 states have call predecessors, (7181), 1560 states have return successors, (9989), 7023 states have call predecessors, (9989), 7176 states have call successors, (9989) [2023-12-25 05:30:53,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29480 states to 29480 states and 48631 transitions. [2023-12-25 05:30:53,421 INFO L78 Accepts]: Start accepts. Automaton has 29480 states and 48631 transitions. Word has length 199 [2023-12-25 05:30:53,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:30:53,422 INFO L495 AbstractCegarLoop]: Abstraction has 29480 states and 48631 transitions. [2023-12-25 05:30:53,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 13 states have internal predecessors, (172), 8 states have call successors, (36), 5 states have call predecessors, (36), 10 states have return successors, (37), 10 states have call predecessors, (37), 7 states have call successors, (37) [2023-12-25 05:30:53,422 INFO L276 IsEmpty]: Start isEmpty. Operand 29480 states and 48631 transitions. [2023-12-25 05:30:53,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-25 05:30:53,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:30:53,427 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:30:53,435 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 (39)] Forceful destruction successful, exit code 0 [2023-12-25 05:30:53,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:30:53,628 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:30:53,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:30:53,629 INFO L85 PathProgramCache]: Analyzing trace with hash 891208610, now seen corresponding path program 1 times [2023-12-25 05:30:53,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:30:53,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597244885] [2023-12-25 05:30:53,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:30:53,630 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 05:30:53,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:30:53,631 INFO L229 MonitoredProcess]: Starting monitored process 40 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 05:30:53,631 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 (40)] Waiting until timeout for monitored process [2023-12-25 05:30:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:30:54,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:30:54,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:30:54,035 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-12-25 05:30:54,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:30:54,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:30:54,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597244885] [2023-12-25 05:30:54,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597244885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:30:54,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:30:54,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:30:54,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060223563] [2023-12-25 05:30:54,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:30:54,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:30:54,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:30:54,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:30:54,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:30:54,042 INFO L87 Difference]: Start difference. First operand 29480 states and 48631 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-25 05:30:57,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:30:57,002 INFO L93 Difference]: Finished difference Result 63430 states and 106111 transitions. [2023-12-25 05:30:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:30:57,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 279 [2023-12-25 05:30:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:30:57,165 INFO L225 Difference]: With dead ends: 63430 [2023-12-25 05:30:57,165 INFO L226 Difference]: Without dead ends: 33988 [2023-12-25 05:30:57,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:30:57,261 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 146 mSDsluCounter, 3037 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3803 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:30:57,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3803 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:30:57,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33988 states. [2023-12-25 05:30:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33988 to 29740. [2023-12-25 05:30:59,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29740 states, 20946 states have (on average 1.5119354530697986) internal successors, (31669), 22424 states have internal predecessors, (31669), 7181 states have call successors, (7181), 1189 states have call predecessors, (7181), 1612 states have return successors, (10061), 7075 states have call predecessors, (10061), 7176 states have call successors, (10061) [2023-12-25 05:31:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29740 states to 29740 states and 48911 transitions. [2023-12-25 05:31:00,107 INFO L78 Accepts]: Start accepts. Automaton has 29740 states and 48911 transitions. Word has length 279 [2023-12-25 05:31:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:00,108 INFO L495 AbstractCegarLoop]: Abstraction has 29740 states and 48911 transitions. [2023-12-25 05:31:00,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-25 05:31:00,108 INFO L276 IsEmpty]: Start isEmpty. Operand 29740 states and 48911 transitions. [2023-12-25 05:31:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-25 05:31:00,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:00,115 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:00,129 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 (40)] Ended with exit code 0 [2023-12-25 05:31:00,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:31:00,329 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:00,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:00,329 INFO L85 PathProgramCache]: Analyzing trace with hash -288505009, now seen corresponding path program 1 times [2023-12-25 05:31:00,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:00,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056988485] [2023-12-25 05:31:00,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:00,330 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 05:31:00,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:00,331 INFO L229 MonitoredProcess]: Starting monitored process 41 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 05:31:00,332 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 (41)] Waiting until timeout for monitored process [2023-12-25 05:31:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:00,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 1134 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:31:00,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-12-25 05:31:00,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:31:01,381 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-12-25 05:31:01,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:01,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056988485] [2023-12-25 05:31:01,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056988485] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:31:01,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:31:01,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2023-12-25 05:31:01,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115545321] [2023-12-25 05:31:01,381 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:31:01,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 05:31:01,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:01,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 05:31:01,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-25 05:31:01,383 INFO L87 Difference]: Start difference. First operand 29740 states and 48911 transitions. Second operand has 10 states, 10 states have (on average 22.4) internal successors, (224), 10 states have internal predecessors, (224), 7 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (45), 7 states have call predecessors, (45), 6 states have call successors, (45) [2023-12-25 05:31:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:09,331 INFO L93 Difference]: Finished difference Result 88697 states and 147631 transitions. [2023-12-25 05:31:09,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:31:09,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.4) internal successors, (224), 10 states have internal predecessors, (224), 7 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (45), 7 states have call predecessors, (45), 6 states have call successors, (45) Word has length 280 [2023-12-25 05:31:09,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:09,676 INFO L225 Difference]: With dead ends: 88697 [2023-12-25 05:31:09,676 INFO L226 Difference]: Without dead ends: 58694 [2023-12-25 05:31:09,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:31:09,807 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 2321 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 4864 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 5395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 4864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:09,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 2088 Invalid, 5395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 4864 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-25 05:31:09,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58694 states. [2023-12-25 05:31:13,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58694 to 54633. [2023-12-25 05:31:13,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54633 states, 38232 states have (on average 1.5108286252354048) internal successors, (57762), 41024 states have internal predecessors, (57762), 13396 states have call successors, (13396), 2218 states have call predecessors, (13396), 3004 states have return successors, (18906), 13184 states have call predecessors, (18906), 13391 states have call successors, (18906) [2023-12-25 05:31:14,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54633 states to 54633 states and 90064 transitions. [2023-12-25 05:31:14,376 INFO L78 Accepts]: Start accepts. Automaton has 54633 states and 90064 transitions. Word has length 280 [2023-12-25 05:31:14,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:14,377 INFO L495 AbstractCegarLoop]: Abstraction has 54633 states and 90064 transitions. [2023-12-25 05:31:14,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.4) internal successors, (224), 10 states have internal predecessors, (224), 7 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (45), 7 states have call predecessors, (45), 6 states have call successors, (45) [2023-12-25 05:31:14,377 INFO L276 IsEmpty]: Start isEmpty. Operand 54633 states and 90064 transitions. [2023-12-25 05:31:14,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-12-25 05:31:14,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:14,381 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:14,390 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 (41)] Ended with exit code 0 [2023-12-25 05:31:14,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:31:14,582 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:14,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:14,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1393153049, now seen corresponding path program 1 times [2023-12-25 05:31:14,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:14,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834935663] [2023-12-25 05:31:14,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:14,583 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 05:31:14,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:14,584 INFO L229 MonitoredProcess]: Starting monitored process 42 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 05:31:14,585 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 (42)] Waiting until timeout for monitored process [2023-12-25 05:31:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:14,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:31:14,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-12-25 05:31:14,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:31:14,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:14,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834935663] [2023-12-25 05:31:14,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [834935663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:31:14,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:31:14,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:31:14,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188147994] [2023-12-25 05:31:14,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:31:14,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:31:14,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:14,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:31:14,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:31:14,994 INFO L87 Difference]: Start difference. First operand 54633 states and 90064 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:31:19,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:19,272 INFO L93 Difference]: Finished difference Result 102964 states and 170918 transitions. [2023-12-25 05:31:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:31:19,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 252 [2023-12-25 05:31:19,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:19,542 INFO L225 Difference]: With dead ends: 102964 [2023-12-25 05:31:19,542 INFO L226 Difference]: Without dead ends: 48447 [2023-12-25 05:31:19,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:31:19,908 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 213 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:19,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 3765 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:31:19,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48447 states. [2023-12-25 05:31:23,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48447 to 48289. [2023-12-25 05:31:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48289 states, 33628 states have (on average 1.5285476388723682) internal successors, (51402), 36134 states have internal predecessors, (51402), 12174 states have call successors, (12174), 1806 states have call predecessors, (12174), 2486 states have return successors, (16572), 12142 states have call predecessors, (16572), 12169 states have call successors, (16572) [2023-12-25 05:31:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48289 states to 48289 states and 80148 transitions. [2023-12-25 05:31:23,832 INFO L78 Accepts]: Start accepts. Automaton has 48289 states and 80148 transitions. Word has length 252 [2023-12-25 05:31:23,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:23,833 INFO L495 AbstractCegarLoop]: Abstraction has 48289 states and 80148 transitions. [2023-12-25 05:31:23,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-25 05:31:23,833 INFO L276 IsEmpty]: Start isEmpty. Operand 48289 states and 80148 transitions. [2023-12-25 05:31:23,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-25 05:31:23,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:23,836 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:23,847 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 (42)] Ended with exit code 0 [2023-12-25 05:31:24,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:31:24,046 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:24,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:24,046 INFO L85 PathProgramCache]: Analyzing trace with hash 395524783, now seen corresponding path program 1 times [2023-12-25 05:31:24,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:24,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757063701] [2023-12-25 05:31:24,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:24,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 05:31:24,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:24,048 INFO L229 MonitoredProcess]: Starting monitored process 43 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 05:31:24,057 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 (43)] Waiting until timeout for monitored process [2023-12-25 05:31:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:24,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:31:24,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-25 05:31:24,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:31:25,158 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-25 05:31:25,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:25,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757063701] [2023-12-25 05:31:25,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757063701] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:31:25,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:31:25,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-25 05:31:25,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681841100] [2023-12-25 05:31:25,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:31:25,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 05:31:25,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:25,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 05:31:25,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:31:25,162 INFO L87 Difference]: Start difference. First operand 48289 states and 80148 transitions. Second operand has 15 states, 15 states have (on average 14.066666666666666) internal successors, (211), 13 states have internal predecessors, (211), 9 states have call successors, (42), 5 states have call predecessors, (42), 10 states have return successors, (47), 11 states have call predecessors, (47), 8 states have call successors, (47) [2023-12-25 05:31:33,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:33,930 INFO L93 Difference]: Finished difference Result 96723 states and 161126 transitions. [2023-12-25 05:31:33,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 05:31:33,931 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 14.066666666666666) internal successors, (211), 13 states have internal predecessors, (211), 9 states have call successors, (42), 5 states have call predecessors, (42), 10 states have return successors, (47), 11 states have call predecessors, (47), 8 states have call successors, (47) Word has length 256 [2023-12-25 05:31:33,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:34,231 INFO L225 Difference]: With dead ends: 96723 [2023-12-25 05:31:34,231 INFO L226 Difference]: Without dead ends: 48586 [2023-12-25 05:31:34,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2023-12-25 05:31:34,541 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 3388 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 7738 mSolverCounterSat, 888 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3487 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 8626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 888 IncrementalHoareTripleChecker+Valid, 7738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:34,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3487 Valid, 4147 Invalid, 8626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [888 Valid, 7738 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-25 05:31:34,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48586 states. [2023-12-25 05:31:38,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48586 to 48427. [2023-12-25 05:31:38,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48427 states, 33724 states have (on average 1.5270430553908196) internal successors, (51498), 36245 states have internal predecessors, (51498), 12174 states have call successors, (12174), 1806 states have call predecessors, (12174), 2528 states have return successors, (16636), 12169 states have call predecessors, (16636), 12169 states have call successors, (16636) [2023-12-25 05:31:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48427 states to 48427 states and 80308 transitions. [2023-12-25 05:31:38,463 INFO L78 Accepts]: Start accepts. Automaton has 48427 states and 80308 transitions. Word has length 256 [2023-12-25 05:31:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:38,464 INFO L495 AbstractCegarLoop]: Abstraction has 48427 states and 80308 transitions. [2023-12-25 05:31:38,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.066666666666666) internal successors, (211), 13 states have internal predecessors, (211), 9 states have call successors, (42), 5 states have call predecessors, (42), 10 states have return successors, (47), 11 states have call predecessors, (47), 8 states have call successors, (47) [2023-12-25 05:31:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 48427 states and 80308 transitions. [2023-12-25 05:31:38,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-25 05:31:38,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:38,469 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:31:38,477 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 (43)] Ended with exit code 0 [2023-12-25 05:31:38,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:31:38,670 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:38,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:38,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1354284061, now seen corresponding path program 1 times [2023-12-25 05:31:38,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:38,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463629713] [2023-12-25 05:31:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:38,671 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 05:31:38,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:38,672 INFO L229 MonitoredProcess]: Starting monitored process 44 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 05:31:38,675 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 (44)] Waiting until timeout for monitored process [2023-12-25 05:31:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:39,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 05:31:39,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 36 proven. 33 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-12-25 05:31:39,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:31:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 38 proven. 36 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-12-25 05:31:40,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:40,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463629713] [2023-12-25 05:31:40,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463629713] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:31:40,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:31:40,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 15 [2023-12-25 05:31:40,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013905027] [2023-12-25 05:31:40,024 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:31:40,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 05:31:40,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:40,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 05:31:40,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-12-25 05:31:40,028 INFO L87 Difference]: Start difference. First operand 48427 states and 80308 transitions. Second operand has 15 states, 15 states have (on average 13.8) internal successors, (207), 15 states have internal predecessors, (207), 9 states have call successors, (42), 6 states have call predecessors, (42), 9 states have return successors, (43), 11 states have call predecessors, (43), 8 states have call successors, (43) [2023-12-25 05:31:51,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:31:51,701 INFO L93 Difference]: Finished difference Result 120417 states and 201681 transitions. [2023-12-25 05:31:51,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-25 05:31:51,703 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 13.8) internal successors, (207), 15 states have internal predecessors, (207), 9 states have call successors, (42), 6 states have call predecessors, (42), 9 states have return successors, (43), 11 states have call predecessors, (43), 8 states have call successors, (43) Word has length 257 [2023-12-25 05:31:51,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:31:52,073 INFO L225 Difference]: With dead ends: 120417 [2023-12-25 05:31:52,073 INFO L226 Difference]: Without dead ends: 32928 [2023-12-25 05:31:52,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=398, Invalid=1242, Unknown=0, NotChecked=0, Total=1640 [2023-12-25 05:31:52,366 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 4409 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 6379 mSolverCounterSat, 1395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4494 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 7774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 6379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:31:52,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4494 Valid, 3412 Invalid, 7774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1395 Valid, 6379 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-25 05:31:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32928 states. [2023-12-25 05:31:54,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32928 to 32179. [2023-12-25 05:31:55,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32179 states, 23044 states have (on average 1.5108488109703178) internal successors, (34816), 24587 states have internal predecessors, (34816), 7245 states have call successors, (7245), 1485 states have call predecessors, (7245), 1889 states have return successors, (10137), 7140 states have call predecessors, (10137), 7240 states have call successors, (10137) [2023-12-25 05:31:55,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32179 states to 32179 states and 52198 transitions. [2023-12-25 05:31:55,395 INFO L78 Accepts]: Start accepts. Automaton has 32179 states and 52198 transitions. Word has length 257 [2023-12-25 05:31:55,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:31:55,396 INFO L495 AbstractCegarLoop]: Abstraction has 32179 states and 52198 transitions. [2023-12-25 05:31:55,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 13.8) internal successors, (207), 15 states have internal predecessors, (207), 9 states have call successors, (42), 6 states have call predecessors, (42), 9 states have return successors, (43), 11 states have call predecessors, (43), 8 states have call successors, (43) [2023-12-25 05:31:55,396 INFO L276 IsEmpty]: Start isEmpty. Operand 32179 states and 52198 transitions. [2023-12-25 05:31:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-12-25 05:31:55,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:31:55,400 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:55,408 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 (44)] Ended with exit code 0 [2023-12-25 05:31:55,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:31:55,601 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:31:55,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:31:55,602 INFO L85 PathProgramCache]: Analyzing trace with hash 743335689, now seen corresponding path program 1 times [2023-12-25 05:31:55,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:31:55,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353028290] [2023-12-25 05:31:55,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:31:55,602 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 05:31:55,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:31:55,604 INFO L229 MonitoredProcess]: Starting monitored process 45 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 05:31:55,605 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 (45)] Waiting until timeout for monitored process [2023-12-25 05:31:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:31:56,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 05:31:56,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:31:56,391 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-12-25 05:31:56,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:31:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 2 proven. 38 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-12-25 05:31:57,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:31:57,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353028290] [2023-12-25 05:31:57,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353028290] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:31:57,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:31:57,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2023-12-25 05:31:57,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711952784] [2023-12-25 05:31:57,101 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:31:57,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:31:57,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:31:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:31:57,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:31:57,103 INFO L87 Difference]: Start difference. First operand 32179 states and 52198 transitions. Second operand has 18 states, 16 states have (on average 16.3125) internal successors, (261), 18 states have internal predecessors, (261), 13 states have call successors, (54), 6 states have call predecessors, (54), 9 states have return successors, (53), 13 states have call predecessors, (53), 12 states have call successors, (53) [2023-12-25 05:32:11,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:32:11,386 INFO L93 Difference]: Finished difference Result 138646 states and 230123 transitions. [2023-12-25 05:32:11,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-25 05:32:11,388 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 16.3125) internal successors, (261), 18 states have internal predecessors, (261), 13 states have call successors, (54), 6 states have call predecessors, (54), 9 states have return successors, (53), 13 states have call predecessors, (53), 12 states have call successors, (53) Word has length 275 [2023-12-25 05:32:11,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:32:12,384 INFO L225 Difference]: With dead ends: 138646 [2023-12-25 05:32:12,385 INFO L226 Difference]: Without dead ends: 105914 [2023-12-25 05:32:12,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=1390, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 05:32:12,594 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 7105 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 8526 mSolverCounterSat, 2272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7229 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 10798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2272 IncrementalHoareTripleChecker+Valid, 8526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:32:12,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7229 Valid, 3466 Invalid, 10798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2272 Valid, 8526 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-25 05:32:12,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105914 states. [2023-12-25 05:32:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105914 to 104788. [2023-12-25 05:32:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104788 states, 74284 states have (on average 1.5120752786602767) internal successors, (112323), 79290 states have internal predecessors, (112323), 24518 states have call successors, (24518), 4904 states have call predecessors, (24518), 5985 states have return successors, (35330), 24318 states have call predecessors, (35330), 24513 states have call successors, (35330) [2023-12-25 05:32:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104788 states to 104788 states and 172171 transitions. [2023-12-25 05:32:21,036 INFO L78 Accepts]: Start accepts. Automaton has 104788 states and 172171 transitions. Word has length 275 [2023-12-25 05:32:21,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:32:21,037 INFO L495 AbstractCegarLoop]: Abstraction has 104788 states and 172171 transitions. [2023-12-25 05:32:21,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 16.3125) internal successors, (261), 18 states have internal predecessors, (261), 13 states have call successors, (54), 6 states have call predecessors, (54), 9 states have return successors, (53), 13 states have call predecessors, (53), 12 states have call successors, (53) [2023-12-25 05:32:21,037 INFO L276 IsEmpty]: Start isEmpty. Operand 104788 states and 172171 transitions. [2023-12-25 05:32:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-25 05:32:21,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:32:21,042 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:32:21,059 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 (45)] Forceful destruction successful, exit code 0 [2023-12-25 05:32:21,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 05:32:21,243 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:32:21,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:32:21,244 INFO L85 PathProgramCache]: Analyzing trace with hash -774609047, now seen corresponding path program 1 times [2023-12-25 05:32:21,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:32:21,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623519849] [2023-12-25 05:32:21,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:32:21,244 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 05:32:21,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:32:21,245 INFO L229 MonitoredProcess]: Starting monitored process 46 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 05:32:21,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-25 05:32:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:32:21,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:32:21,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:32:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-12-25 05:32:21,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:32:21,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:32:21,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623519849] [2023-12-25 05:32:21,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623519849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:32:21,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:32:21,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:32:21,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090541566] [2023-12-25 05:32:21,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:32:21,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:32:21,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:32:21,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:32:21,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:32:21,940 INFO L87 Difference]: Start difference. First operand 104788 states and 172171 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)