/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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:22:36,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:22:36,183 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:22:36,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:22:36,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:22:36,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:22:36,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:22:36,216 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:22:36,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:22:36,219 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:22:36,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:22:36,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:22:36,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:22:36,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:22:36,221 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:22:36,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:22:36,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:22:36,221 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:22:36,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:22:36,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:22:36,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:22:36,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:22:36,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:22:36,223 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:22:36,223 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:22:36,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:22:36,224 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:22:36,224 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:22:36,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:22:36,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:22:36,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:22:36,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:22:36,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:22:36,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:22:36,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:22:36,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:22:36,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:22:36,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:22:36,226 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:22:36,226 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:22:36,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:22:36,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:22:36,227 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:22:36,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:22:36,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:22:36,227 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:22:36,227 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:22:36,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:22:36,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:22:36,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:22:36,404 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:22:36,404 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:22:36,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2023-12-16 17:22:37,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:22:37,743 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:22:37,744 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2023-12-16 17:22:37,770 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5a5d5a2/2da8ae99d9f6487d9e3e8461d341df0e/FLAGb06c20d60 [2023-12-16 17:22:37,780 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5a5d5a2/2da8ae99d9f6487d9e3e8461d341df0e [2023-12-16 17:22:37,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:22:37,783 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:22:37,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:22:37,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:22:37,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:22:37,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:22:37" (1/1) ... [2023-12-16 17:22:37,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c96673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:37, skipping insertion in model container [2023-12-16 17:22:37,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:22:37" (1/1) ... [2023-12-16 17:22:37,865 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:22:38,230 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_product25.cil.c[66231,66244] [2023-12-16 17:22:38,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:22:38,287 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:22:38,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:22:38,391 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_product25.cil.c[66231,66244] [2023-12-16 17:22:38,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:22:38,399 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:22:38,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-16 17:22:38,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] [2023-12-16 17:22:38,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] [2023-12-16 17:22:38,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] [2023-12-16 17:22:38,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] [2023-12-16 17:22:38,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] [2023-12-16 17:22:38,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] [2023-12-16 17:22:38,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] [2023-12-16 17:22:38,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] [2023-12-16 17:22:38,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] [2023-12-16 17:22:38,469 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_product25.cil.c[66231,66244] [2023-12-16 17:22:38,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:22:38,491 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:22:38,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38 WrapperNode [2023-12-16 17:22:38,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:22:38,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:22:38,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:22:38,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:22:38,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,574 INFO L138 Inliner]: procedures = 93, calls = 334, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 802 [2023-12-16 17:22:38,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:22:38,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:22:38,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:22:38,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:22:38,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,620 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-16 17:22:38,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,644 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:22:38,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:22:38,692 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:22:38,692 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:22:38,693 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (1/1) ... [2023-12-16 17:22:38,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:22:38,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:22:38,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:22:38,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:22:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:22:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 17:22:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 17:22:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 17:22:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 17:22:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 17:22:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 17:22:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 17:22:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 17:22:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 17:22:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 17:22:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:22:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:22:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:22:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:22:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-16 17:22:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-16 17:22:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 17:22:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 17:22:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 17:22:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 17:22:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 17:22:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 17:22:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 17:22:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 17:22:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 17:22:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 17:22:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 17:22:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 17:22:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 17:22:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 17:22:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 17:22:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 17:22:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 17:22:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 17:22:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 17:22:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 17:22:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 17:22:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 17:22:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 17:22:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:22:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:22:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 17:22:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 17:22:38,924 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:22:38,926 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:22:39,765 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:22:39,907 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:22:39,908 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:22:39,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:22:39 BoogieIcfgContainer [2023-12-16 17:22:39,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:22:39,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:22:39,910 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:22:39,912 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:22:39,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:22:37" (1/3) ... [2023-12-16 17:22:39,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cce959f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:22:39, skipping insertion in model container [2023-12-16 17:22:39,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:22:38" (2/3) ... [2023-12-16 17:22:39,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cce959f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:22:39, skipping insertion in model container [2023-12-16 17:22:39,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:22:39" (3/3) ... [2023-12-16 17:22:39,915 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.c [2023-12-16 17:22:39,927 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:22:39,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:22:39,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:22:39,984 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;@60949571, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:22:39,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:22:39,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 520 states, 409 states have (on average 1.7481662591687042) internal successors, (715), 430 states have internal predecessors, (715), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:22:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 17:22:40,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:40,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:40,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:40,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:40,020 INFO L85 PathProgramCache]: Analyzing trace with hash 964666655, now seen corresponding path program 1 times [2023-12-16 17:22:40,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:40,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262587289] [2023-12-16 17:22:40,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:40,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:40,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:40,046 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:40,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:22:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:40,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:22:40,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:40,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:40,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:40,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262587289] [2023-12-16 17:22:40,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262587289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:40,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:40,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:22:40,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241004894] [2023-12-16 17:22:40,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:40,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:22:40,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:40,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:22:40,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:22:40,472 INFO L87 Difference]: Start difference. First operand has 520 states, 409 states have (on average 1.7481662591687042) internal successors, (715), 430 states have internal predecessors, (715), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:22:40,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:40,567 INFO L93 Difference]: Finished difference Result 538 states and 918 transitions. [2023-12-16 17:22:40,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:22:40,573 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2023-12-16 17:22:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:40,595 INFO L225 Difference]: With dead ends: 538 [2023-12-16 17:22:40,595 INFO L226 Difference]: Without dead ends: 516 [2023-12-16 17:22:40,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:22:40,601 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:40,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 868 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:40,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-16 17:22:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-16 17:22:40,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7395577395577395) internal successors, (708), 426 states have internal predecessors, (708), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 879 transitions. [2023-12-16 17:22:40,655 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 879 transitions. Word has length 65 [2023-12-16 17:22:40,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:40,656 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 879 transitions. [2023-12-16 17:22:40,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:22:40,657 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 879 transitions. [2023-12-16 17:22:40,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 17:22:40,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:40,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:40,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:40,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:40,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:40,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1996985628, now seen corresponding path program 1 times [2023-12-16 17:22:40,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:40,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552550031] [2023-12-16 17:22:40,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:40,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:40,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:40,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:40,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:22:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:41,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:41,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:41,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:41,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:41,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552550031] [2023-12-16 17:22:41,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552550031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:41,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:41,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895721775] [2023-12-16 17:22:41,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:41,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:41,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:41,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:41,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:41,170 INFO L87 Difference]: Start difference. First operand 516 states and 879 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:41,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:41,287 INFO L93 Difference]: Finished difference Result 1020 states and 1740 transitions. [2023-12-16 17:22:41,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:41,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2023-12-16 17:22:41,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:41,291 INFO L225 Difference]: With dead ends: 1020 [2023-12-16 17:22:41,291 INFO L226 Difference]: Without dead ends: 516 [2023-12-16 17:22:41,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:41,295 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 14 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:41,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2554 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:41,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-16 17:22:41,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-16 17:22:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7371007371007372) internal successors, (707), 426 states have internal predecessors, (707), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:41,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 878 transitions. [2023-12-16 17:22:41,337 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 878 transitions. Word has length 66 [2023-12-16 17:22:41,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:41,337 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 878 transitions. [2023-12-16 17:22:41,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:41,337 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 878 transitions. [2023-12-16 17:22:41,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 17:22:41,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:41,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:41,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:41,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:41,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:41,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:41,547 INFO L85 PathProgramCache]: Analyzing trace with hash 272204788, now seen corresponding path program 1 times [2023-12-16 17:22:41,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:41,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584634611] [2023-12-16 17:22:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:41,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:41,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:41,548 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:41,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:22:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:41,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:41,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:41,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:41,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:41,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:41,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584634611] [2023-12-16 17:22:41,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584634611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:41,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:41,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:41,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15511863] [2023-12-16 17:22:41,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:41,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:41,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:41,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:41,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:41,813 INFO L87 Difference]: Start difference. First operand 516 states and 878 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:41,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:41,892 INFO L93 Difference]: Finished difference Result 1020 states and 1739 transitions. [2023-12-16 17:22:41,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:41,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2023-12-16 17:22:41,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:41,929 INFO L225 Difference]: With dead ends: 1020 [2023-12-16 17:22:41,929 INFO L226 Difference]: Without dead ends: 516 [2023-12-16 17:22:41,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:41,931 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 12 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:41,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2554 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:41,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-16 17:22:41,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-16 17:22:41,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7346437346437347) internal successors, (706), 426 states have internal predecessors, (706), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:41,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 877 transitions. [2023-12-16 17:22:41,944 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 877 transitions. Word has length 67 [2023-12-16 17:22:41,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:41,944 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 877 transitions. [2023-12-16 17:22:41,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:41,945 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 877 transitions. [2023-12-16 17:22:41,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 17:22:41,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:41,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:41,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:42,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:42,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:42,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:42,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1252745832, now seen corresponding path program 1 times [2023-12-16 17:22:42,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:42,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820458275] [2023-12-16 17:22:42,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:42,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:42,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:42,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:42,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:22:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:42,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:42,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:42,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:42,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:42,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820458275] [2023-12-16 17:22:42,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820458275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:42,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:42,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:42,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942484811] [2023-12-16 17:22:42,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:42,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:42,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:42,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:42,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:42,439 INFO L87 Difference]: Start difference. First operand 516 states and 877 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:42,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:42,511 INFO L93 Difference]: Finished difference Result 1020 states and 1738 transitions. [2023-12-16 17:22:42,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:42,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2023-12-16 17:22:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:42,513 INFO L225 Difference]: With dead ends: 1020 [2023-12-16 17:22:42,513 INFO L226 Difference]: Without dead ends: 516 [2023-12-16 17:22:42,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:42,515 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 10 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:42,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2554 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:42,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-16 17:22:42,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-16 17:22:42,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7321867321867321) internal successors, (705), 426 states have internal predecessors, (705), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 876 transitions. [2023-12-16 17:22:42,526 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 876 transitions. Word has length 68 [2023-12-16 17:22:42,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:42,527 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 876 transitions. [2023-12-16 17:22:42,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:42,527 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 876 transitions. [2023-12-16 17:22:42,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-16 17:22:42,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:42,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:42,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 17:22:42,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:42,734 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:42,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:42,735 INFO L85 PathProgramCache]: Analyzing trace with hash -877926928, now seen corresponding path program 1 times [2023-12-16 17:22:42,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:42,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772890798] [2023-12-16 17:22:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:42,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:42,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:42,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:42,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:22:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:42,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:42,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:42,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:42,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:42,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:42,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772890798] [2023-12-16 17:22:42,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772890798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:42,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:42,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:42,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699515249] [2023-12-16 17:22:42,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:42,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:42,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:42,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:42,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:42,998 INFO L87 Difference]: Start difference. First operand 516 states and 876 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:43,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:43,069 INFO L93 Difference]: Finished difference Result 1020 states and 1737 transitions. [2023-12-16 17:22:43,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:43,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2023-12-16 17:22:43,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:43,071 INFO L225 Difference]: With dead ends: 1020 [2023-12-16 17:22:43,071 INFO L226 Difference]: Without dead ends: 516 [2023-12-16 17:22:43,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:43,073 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 8 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:43,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2554 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:43,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-16 17:22:43,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-16 17:22:43,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7297297297297298) internal successors, (704), 426 states have internal predecessors, (704), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:43,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 875 transitions. [2023-12-16 17:22:43,084 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 875 transitions. Word has length 69 [2023-12-16 17:22:43,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:43,084 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 875 transitions. [2023-12-16 17:22:43,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:43,084 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 875 transitions. [2023-12-16 17:22:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 17:22:43,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:43,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:43,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 17:22:43,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:43,294 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:43,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1739794924, now seen corresponding path program 1 times [2023-12-16 17:22:43,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:43,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511975840] [2023-12-16 17:22:43,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:43,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:43,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:43,313 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:43,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:22:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:43,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:43,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:43,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:43,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:43,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511975840] [2023-12-16 17:22:43,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511975840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:43,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:43,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:43,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802771351] [2023-12-16 17:22:43,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:43,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:43,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:43,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:43,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:43,572 INFO L87 Difference]: Start difference. First operand 516 states and 875 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:43,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:43,641 INFO L93 Difference]: Finished difference Result 1020 states and 1736 transitions. [2023-12-16 17:22:43,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:43,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2023-12-16 17:22:43,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:43,644 INFO L225 Difference]: With dead ends: 1020 [2023-12-16 17:22:43,644 INFO L226 Difference]: Without dead ends: 516 [2023-12-16 17:22:43,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:43,647 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 6 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:43,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2554 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:43,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-16 17:22:43,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-16 17:22:43,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7272727272727273) internal successors, (703), 426 states have internal predecessors, (703), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 874 transitions. [2023-12-16 17:22:43,719 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 874 transitions. Word has length 70 [2023-12-16 17:22:43,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:43,719 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 874 transitions. [2023-12-16 17:22:43,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:43,719 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 874 transitions. [2023-12-16 17:22:43,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 17:22:43,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:43,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:43,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:43,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:43,927 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:43,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:43,927 INFO L85 PathProgramCache]: Analyzing trace with hash 2111628107, now seen corresponding path program 1 times [2023-12-16 17:22:43,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:43,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682376909] [2023-12-16 17:22:43,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:43,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:43,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:43,929 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:43,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:22:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:44,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:44,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:44,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:44,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:44,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682376909] [2023-12-16 17:22:44,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682376909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:44,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:44,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:44,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471225678] [2023-12-16 17:22:44,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:44,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:44,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:44,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:44,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:44,175 INFO L87 Difference]: Start difference. First operand 516 states and 874 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:44,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:44,241 INFO L93 Difference]: Finished difference Result 1020 states and 1735 transitions. [2023-12-16 17:22:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:44,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2023-12-16 17:22:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:44,243 INFO L225 Difference]: With dead ends: 1020 [2023-12-16 17:22:44,243 INFO L226 Difference]: Without dead ends: 516 [2023-12-16 17:22:44,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:44,246 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 4 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:44,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2554 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:44,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-12-16 17:22:44,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-12-16 17:22:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7248157248157248) internal successors, (702), 426 states have internal predecessors, (702), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 873 transitions. [2023-12-16 17:22:44,256 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 873 transitions. Word has length 71 [2023-12-16 17:22:44,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:44,256 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 873 transitions. [2023-12-16 17:22:44,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 873 transitions. [2023-12-16 17:22:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 17:22:44,257 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:44,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:44,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:44,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:44,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:44,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2010716140, now seen corresponding path program 1 times [2023-12-16 17:22:44,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:44,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875234743] [2023-12-16 17:22:44,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:44,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:44,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:44,466 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:44,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:22:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:44,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:22:44,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:44,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:44,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:44,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875234743] [2023-12-16 17:22:44,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875234743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:44,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:44,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:44,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544615246] [2023-12-16 17:22:44,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:44,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:44,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:44,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:44,769 INFO L87 Difference]: Start difference. First operand 516 states and 873 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:44,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:44,890 INFO L93 Difference]: Finished difference Result 980 states and 1659 transitions. [2023-12-16 17:22:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:22:44,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2023-12-16 17:22:44,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:44,894 INFO L225 Difference]: With dead ends: 980 [2023-12-16 17:22:44,894 INFO L226 Difference]: Without dead ends: 510 [2023-12-16 17:22:44,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:44,897 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 115 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4991 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:44,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4991 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-16 17:22:44,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-16 17:22:44,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 401 states have (on average 1.7182044887780548) internal successors, (689), 420 states have internal predecessors, (689), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:44,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 860 transitions. [2023-12-16 17:22:44,927 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 860 transitions. Word has length 71 [2023-12-16 17:22:44,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:44,927 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 860 transitions. [2023-12-16 17:22:44,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:44,927 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 860 transitions. [2023-12-16 17:22:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 17:22:44,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:44,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:44,938 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 [2023-12-16 17:22:45,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:45,136 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:45,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:45,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1458115754, now seen corresponding path program 1 times [2023-12-16 17:22:45,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:45,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45976021] [2023-12-16 17:22:45,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:45,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:45,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:45,138 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:45,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:22:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:45,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:45,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:45,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:45,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:45,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:45,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45976021] [2023-12-16 17:22:45,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45976021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:45,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:45,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:45,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135544217] [2023-12-16 17:22:45,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:45,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:45,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:45,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:45,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:45,383 INFO L87 Difference]: Start difference. First operand 510 states and 860 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:45,509 INFO L93 Difference]: Finished difference Result 974 states and 1646 transitions. [2023-12-16 17:22:45,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:45,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2023-12-16 17:22:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:45,512 INFO L225 Difference]: With dead ends: 974 [2023-12-16 17:22:45,512 INFO L226 Difference]: Without dead ends: 510 [2023-12-16 17:22:45,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:45,514 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 88 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:45,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2370 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-16 17:22:45,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-16 17:22:45,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 401 states have (on average 1.7082294264339153) internal successors, (685), 420 states have internal predecessors, (685), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:45,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 856 transitions. [2023-12-16 17:22:45,527 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 856 transitions. Word has length 72 [2023-12-16 17:22:45,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:45,527 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 856 transitions. [2023-12-16 17:22:45,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:45,528 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 856 transitions. [2023-12-16 17:22:45,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 17:22:45,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:45,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:45,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:45,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:45,738 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:45,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:45,738 INFO L85 PathProgramCache]: Analyzing trace with hash -461002225, now seen corresponding path program 1 times [2023-12-16 17:22:45,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:45,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360066499] [2023-12-16 17:22:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:45,739 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:45,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:45,740 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:45,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:22:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:46,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:46,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:46,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:46,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:46,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:46,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360066499] [2023-12-16 17:22:46,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360066499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:46,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:46,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:46,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439707512] [2023-12-16 17:22:46,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:46,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:46,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:46,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:46,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:46,078 INFO L87 Difference]: Start difference. First operand 510 states and 856 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:46,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:46,201 INFO L93 Difference]: Finished difference Result 974 states and 1642 transitions. [2023-12-16 17:22:46,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:46,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-12-16 17:22:46,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:46,204 INFO L225 Difference]: With dead ends: 974 [2023-12-16 17:22:46,205 INFO L226 Difference]: Without dead ends: 510 [2023-12-16 17:22:46,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:46,207 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 83 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:46,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2370 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:46,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-16 17:22:46,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-16 17:22:46,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 401 states have (on average 1.6982543640897756) internal successors, (681), 420 states have internal predecessors, (681), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:46,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 852 transitions. [2023-12-16 17:22:46,220 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 852 transitions. Word has length 73 [2023-12-16 17:22:46,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:46,220 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 852 transitions. [2023-12-16 17:22:46,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:46,220 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 852 transitions. [2023-12-16 17:22:46,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-16 17:22:46,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:46,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:46,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:46,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:46,429 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:46,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:46,430 INFO L85 PathProgramCache]: Analyzing trace with hash -652985861, now seen corresponding path program 1 times [2023-12-16 17:22:46,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:46,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807851461] [2023-12-16 17:22:46,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:46,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:46,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:46,431 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:46,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:22:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:46,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:46,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:46,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:46,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:46,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:46,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807851461] [2023-12-16 17:22:46,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807851461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:46,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:46,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:46,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451767729] [2023-12-16 17:22:46,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:46,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:46,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:46,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:46,702 INFO L87 Difference]: Start difference. First operand 510 states and 852 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:46,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:46,815 INFO L93 Difference]: Finished difference Result 974 states and 1638 transitions. [2023-12-16 17:22:46,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:46,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-12-16 17:22:46,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:46,819 INFO L225 Difference]: With dead ends: 974 [2023-12-16 17:22:46,819 INFO L226 Difference]: Without dead ends: 510 [2023-12-16 17:22:46,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:46,821 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 78 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:46,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2370 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-12-16 17:22:46,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2023-12-16 17:22:46,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 401 states have (on average 1.688279301745636) internal successors, (677), 420 states have internal predecessors, (677), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:46,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 848 transitions. [2023-12-16 17:22:46,833 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 848 transitions. Word has length 74 [2023-12-16 17:22:46,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:46,848 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 848 transitions. [2023-12-16 17:22:46,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:46,848 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 848 transitions. [2023-12-16 17:22:46,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-16 17:22:46,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:46,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:46,859 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 [2023-12-16 17:22:47,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:47,057 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:47,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:47,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1548290437, now seen corresponding path program 1 times [2023-12-16 17:22:47,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:47,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42742907] [2023-12-16 17:22:47,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:47,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:47,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:47,059 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:47,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:22:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:47,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:22:47,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:47,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:47,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:47,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:47,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42742907] [2023-12-16 17:22:47,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42742907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:47,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:47,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:47,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392832112] [2023-12-16 17:22:47,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:47,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:47,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:47,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:47,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:47,330 INFO L87 Difference]: Start difference. First operand 510 states and 848 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:47,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:47,446 INFO L93 Difference]: Finished difference Result 974 states and 1634 transitions. [2023-12-16 17:22:47,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:22:47,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2023-12-16 17:22:47,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:47,449 INFO L225 Difference]: With dead ends: 974 [2023-12-16 17:22:47,449 INFO L226 Difference]: Without dead ends: 489 [2023-12-16 17:22:47,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:47,451 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 108 mSDsluCounter, 4033 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 4856 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:47,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 4856 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-16 17:22:47,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-16 17:22:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.6921052631578948) internal successors, (643), 399 states have internal predecessors, (643), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:47,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 814 transitions. [2023-12-16 17:22:47,461 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 814 transitions. Word has length 74 [2023-12-16 17:22:47,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:47,461 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 814 transitions. [2023-12-16 17:22:47,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:47,461 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 814 transitions. [2023-12-16 17:22:47,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 17:22:47,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:47,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:47,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:47,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:47,669 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:47,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:47,669 INFO L85 PathProgramCache]: Analyzing trace with hash 947724052, now seen corresponding path program 1 times [2023-12-16 17:22:47,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:47,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613247512] [2023-12-16 17:22:47,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:47,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:47,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:47,671 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:47,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:22:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:47,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:47,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:47,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:47,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:47,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613247512] [2023-12-16 17:22:47,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613247512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:47,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:47,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:47,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487327129] [2023-12-16 17:22:47,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:47,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:47,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:47,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:47,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:47,906 INFO L87 Difference]: Start difference. First operand 489 states and 814 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:47,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:47,973 INFO L93 Difference]: Finished difference Result 953 states and 1600 transitions. [2023-12-16 17:22:47,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:47,973 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2023-12-16 17:22:47,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:47,976 INFO L225 Difference]: With dead ends: 953 [2023-12-16 17:22:47,976 INFO L226 Difference]: Without dead ends: 489 [2023-12-16 17:22:47,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:47,977 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 39 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2356 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 [2023-12-16 17:22:47,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2356 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:47,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-16 17:22:47,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-16 17:22:47,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.6894736842105262) internal successors, (642), 399 states have internal predecessors, (642), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:47,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 813 transitions. [2023-12-16 17:22:47,986 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 813 transitions. Word has length 75 [2023-12-16 17:22:47,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:47,986 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 813 transitions. [2023-12-16 17:22:47,987 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:47,987 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 813 transitions. [2023-12-16 17:22:47,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 17:22:47,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:47,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:47,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:48,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:48,194 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:48,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:48,194 INFO L85 PathProgramCache]: Analyzing trace with hash -2007608160, now seen corresponding path program 1 times [2023-12-16 17:22:48,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:48,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845962543] [2023-12-16 17:22:48,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:48,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:48,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:48,197 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:48,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 17:22:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:48,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:48,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:48,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:48,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:48,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845962543] [2023-12-16 17:22:48,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845962543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:48,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:48,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:48,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193215414] [2023-12-16 17:22:48,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:48,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:48,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:48,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:48,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:48,463 INFO L87 Difference]: Start difference. First operand 489 states and 813 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:48,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:48,547 INFO L93 Difference]: Finished difference Result 953 states and 1599 transitions. [2023-12-16 17:22:48,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:48,547 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2023-12-16 17:22:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:48,549 INFO L225 Difference]: With dead ends: 953 [2023-12-16 17:22:48,549 INFO L226 Difference]: Without dead ends: 489 [2023-12-16 17:22:48,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:48,551 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 37 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:48,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2356 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:48,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-16 17:22:48,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-16 17:22:48,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.686842105263158) internal successors, (641), 399 states have internal predecessors, (641), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 812 transitions. [2023-12-16 17:22:48,559 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 812 transitions. Word has length 76 [2023-12-16 17:22:48,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:48,560 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 812 transitions. [2023-12-16 17:22:48,560 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:48,560 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 812 transitions. [2023-12-16 17:22:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 17:22:48,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:48,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:48,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:48,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:48,768 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:48,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:48,768 INFO L85 PathProgramCache]: Analyzing trace with hash 272542491, now seen corresponding path program 1 times [2023-12-16 17:22:48,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:48,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640916630] [2023-12-16 17:22:48,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:48,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:48,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:48,770 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:48,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:22:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:48,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:22:48,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:49,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:49,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:49,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:49,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640916630] [2023-12-16 17:22:49,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640916630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:49,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:49,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:22:49,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694402610] [2023-12-16 17:22:49,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:49,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:22:49,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:49,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:22:49,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:22:49,018 INFO L87 Difference]: Start difference. First operand 489 states and 812 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:49,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:49,082 INFO L93 Difference]: Finished difference Result 953 states and 1598 transitions. [2023-12-16 17:22:49,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:22:49,097 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2023-12-16 17:22:49,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:49,099 INFO L225 Difference]: With dead ends: 953 [2023-12-16 17:22:49,099 INFO L226 Difference]: Without dead ends: 489 [2023-12-16 17:22:49,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:22:49,101 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 35 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:49,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2356 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:22:49,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-16 17:22:49,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-16 17:22:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.6842105263157894) internal successors, (640), 399 states have internal predecessors, (640), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 811 transitions. [2023-12-16 17:22:49,110 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 811 transitions. Word has length 77 [2023-12-16 17:22:49,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:49,110 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 811 transitions. [2023-12-16 17:22:49,111 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:22:49,111 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 811 transitions. [2023-12-16 17:22:49,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 17:22:49,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:49,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:49,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-16 17:22:49,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:49,318 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:49,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:49,319 INFO L85 PathProgramCache]: Analyzing trace with hash -171358183, now seen corresponding path program 1 times [2023-12-16 17:22:49,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:49,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463871136] [2023-12-16 17:22:49,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:49,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:49,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:49,320 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:49,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:22:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:49,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:22:49,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:49,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:49,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:49,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463871136] [2023-12-16 17:22:49,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463871136] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:49,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:49,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:22:49,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398038003] [2023-12-16 17:22:49,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:49,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:22:49,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:49,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:22:49,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:49,621 INFO L87 Difference]: Start difference. First operand 489 states and 811 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:49,760 INFO L93 Difference]: Finished difference Result 947 states and 1586 transitions. [2023-12-16 17:22:49,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:22:49,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 77 [2023-12-16 17:22:49,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:49,776 INFO L225 Difference]: With dead ends: 947 [2023-12-16 17:22:49,776 INFO L226 Difference]: Without dead ends: 489 [2023-12-16 17:22:49,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:22:49,778 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 24 mSDsluCounter, 4681 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5464 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:49,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5464 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:22:49,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-16 17:22:49,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-12-16 17:22:49,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.681578947368421) internal successors, (639), 399 states have internal predecessors, (639), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:22:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 810 transitions. [2023-12-16 17:22:49,788 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 810 transitions. Word has length 77 [2023-12-16 17:22:49,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:49,789 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 810 transitions. [2023-12-16 17:22:49,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 810 transitions. [2023-12-16 17:22:49,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 17:22:49,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:49,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:49,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:49,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:49,998 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:49,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:49,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1429332971, now seen corresponding path program 1 times [2023-12-16 17:22:49,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:49,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774437396] [2023-12-16 17:22:49,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:49,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:49,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:50,000 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:50,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:22:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:50,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:22:50,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:50,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:50,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:50,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774437396] [2023-12-16 17:22:50,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774437396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:50,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:50,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:22:50,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357894904] [2023-12-16 17:22:50,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:50,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:22:50,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:50,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:22:50,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:22:50,411 INFO L87 Difference]: Start difference. First operand 489 states and 810 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:52,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:52,023 INFO L93 Difference]: Finished difference Result 945 states and 1600 transitions. [2023-12-16 17:22:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:22:52,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2023-12-16 17:22:52,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:52,028 INFO L225 Difference]: With dead ends: 945 [2023-12-16 17:22:52,028 INFO L226 Difference]: Without dead ends: 494 [2023-12-16 17:22:52,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:22:52,030 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1270 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:52,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 1450 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 17:22:52,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-12-16 17:22:52,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 493. [2023-12-16 17:22:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 383 states have (on average 1.6762402088772845) internal successors, (642), 402 states have internal predecessors, (642), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (99), 82 states have call predecessors, (99), 83 states have call successors, (99) [2023-12-16 17:22:52,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 829 transitions. [2023-12-16 17:22:52,052 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 829 transitions. Word has length 78 [2023-12-16 17:22:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:52,052 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 829 transitions. [2023-12-16 17:22:52,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:52,053 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 829 transitions. [2023-12-16 17:22:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 17:22:52,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:52,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:52,061 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 (18)] Ended with exit code 0 [2023-12-16 17:22:52,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:52,261 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:52,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:52,261 INFO L85 PathProgramCache]: Analyzing trace with hash 787652330, now seen corresponding path program 1 times [2023-12-16 17:22:52,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:52,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983453745] [2023-12-16 17:22:52,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:52,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:52,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:52,263 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:52,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 17:22:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:52,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:22:52,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:52,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:52,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:52,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:52,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983453745] [2023-12-16 17:22:52,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983453745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:52,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:52,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:22:52,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521243415] [2023-12-16 17:22:52,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:52,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:22:52,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:52,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:22:52,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:22:52,587 INFO L87 Difference]: Start difference. First operand 493 states and 829 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:55,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:22:55,957 INFO L93 Difference]: Finished difference Result 1779 states and 3081 transitions. [2023-12-16 17:22:55,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:22:55,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2023-12-16 17:22:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:22:55,966 INFO L225 Difference]: With dead ends: 1779 [2023-12-16 17:22:55,967 INFO L226 Difference]: Without dead ends: 1324 [2023-12-16 17:22:55,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:22:55,970 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 2253 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2321 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 5237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:22:55,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2321 Valid, 2430 Invalid, 5237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 17:22:55,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2023-12-16 17:22:56,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1270. [2023-12-16 17:22:56,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 986 states have (on average 1.6855983772819472) internal successors, (1662), 1034 states have internal predecessors, (1662), 229 states have call successors, (229), 54 states have call predecessors, (229), 54 states have return successors, (244), 218 states have call predecessors, (244), 224 states have call successors, (244) [2023-12-16 17:22:56,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 2135 transitions. [2023-12-16 17:22:56,071 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 2135 transitions. Word has length 79 [2023-12-16 17:22:56,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:22:56,071 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 2135 transitions. [2023-12-16 17:22:56,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:22:56,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 2135 transitions. [2023-12-16 17:22:56,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 17:22:56,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:22:56,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:22:56,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:22:56,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:56,280 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:22:56,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:22:56,281 INFO L85 PathProgramCache]: Analyzing trace with hash -755295656, now seen corresponding path program 1 times [2023-12-16 17:22:56,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:22:56,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439625004] [2023-12-16 17:22:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:22:56,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:22:56,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:22:56,297 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:22:56,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:22:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:22:56,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:22:56,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:22:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:22:56,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:22:56,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:22:56,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439625004] [2023-12-16 17:22:56,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439625004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:22:56,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:22:56,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:22:56,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388709843] [2023-12-16 17:22:56,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:22:56,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:22:56,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:22:56,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:22:56,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:22:56,703 INFO L87 Difference]: Start difference. First operand 1270 states and 2135 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:23:00,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:01,000 INFO L93 Difference]: Finished difference Result 5175 states and 9014 transitions. [2023-12-16 17:23:01,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:23:01,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2023-12-16 17:23:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:01,026 INFO L225 Difference]: With dead ends: 5175 [2023-12-16 17:23:01,026 INFO L226 Difference]: Without dead ends: 3943 [2023-12-16 17:23:01,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:23:01,034 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 3805 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 4816 mSolverCounterSat, 1158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 5974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1158 IncrementalHoareTripleChecker+Valid, 4816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:01,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3932 Valid, 2306 Invalid, 5974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1158 Valid, 4816 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-16 17:23:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2023-12-16 17:23:01,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3031. [2023-12-16 17:23:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3031 states, 2242 states have (on average 1.6694915254237288) internal successors, (3743), 2388 states have internal predecessors, (3743), 674 states have call successors, (674), 103 states have call predecessors, (674), 114 states have return successors, (801), 661 states have call predecessors, (801), 669 states have call successors, (801) [2023-12-16 17:23:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3031 states to 3031 states and 5218 transitions. [2023-12-16 17:23:01,335 INFO L78 Accepts]: Start accepts. Automaton has 3031 states and 5218 transitions. Word has length 81 [2023-12-16 17:23:01,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:01,335 INFO L495 AbstractCegarLoop]: Abstraction has 3031 states and 5218 transitions. [2023-12-16 17:23:01,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:23:01,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3031 states and 5218 transitions. [2023-12-16 17:23:01,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 17:23:01,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:01,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:01,360 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 [2023-12-16 17:23:01,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:01,543 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:01,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:01,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1149662442, now seen corresponding path program 1 times [2023-12-16 17:23:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:01,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391693029] [2023-12-16 17:23:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:01,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:01,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:01,546 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:01,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:23:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:01,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:23:01,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:23:01,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:01,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:01,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391693029] [2023-12-16 17:23:01,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391693029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:01,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:01,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:23:01,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19464552] [2023-12-16 17:23:01,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:01,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:23:01,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:01,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:23:01,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:23:01,968 INFO L87 Difference]: Start difference. First operand 3031 states and 5218 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:23:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:04,783 INFO L93 Difference]: Finished difference Result 8129 states and 14086 transitions. [2023-12-16 17:23:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 17:23:04,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2023-12-16 17:23:04,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:04,817 INFO L225 Difference]: With dead ends: 8129 [2023-12-16 17:23:04,817 INFO L226 Difference]: Without dead ends: 5949 [2023-12-16 17:23:04,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:23:04,828 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 2557 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 3772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:04,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 1578 Invalid, 3772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 17:23:04,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2023-12-16 17:23:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 5596. [2023-12-16 17:23:05,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 4165 states have (on average 1.6691476590636254) internal successors, (6952), 4432 states have internal predecessors, (6952), 1202 states have call successors, (1202), 187 states have call predecessors, (1202), 228 states have return successors, (1504), 1180 states have call predecessors, (1504), 1197 states have call successors, (1504) [2023-12-16 17:23:05,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 9658 transitions. [2023-12-16 17:23:05,164 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 9658 transitions. Word has length 81 [2023-12-16 17:23:05,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:05,164 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 9658 transitions. [2023-12-16 17:23:05,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 17:23:05,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 9658 transitions. [2023-12-16 17:23:05,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:23:05,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:05,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:05,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:05,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:05,374 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:05,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:05,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1349816174, now seen corresponding path program 1 times [2023-12-16 17:23:05,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:05,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617770343] [2023-12-16 17:23:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:05,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:05,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:05,376 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:05,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:23:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:05,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:23:05,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:23:05,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:05,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:05,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617770343] [2023-12-16 17:23:05,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617770343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:05,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:05,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:23:05,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955703934] [2023-12-16 17:23:05,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:05,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:23:05,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:05,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:23:05,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:23:05,700 INFO L87 Difference]: Start difference. First operand 5596 states and 9658 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-16 17:23:08,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:08,986 INFO L93 Difference]: Finished difference Result 11316 states and 19518 transitions. [2023-12-16 17:23:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:23:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 85 [2023-12-16 17:23:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:09,025 INFO L225 Difference]: With dead ends: 11316 [2023-12-16 17:23:09,026 INFO L226 Difference]: Without dead ends: 6571 [2023-12-16 17:23:09,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-12-16 17:23:09,047 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1942 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 4889 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 5332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 4889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:09,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 2430 Invalid, 5332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 4889 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 17:23:09,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6571 states. [2023-12-16 17:23:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6571 to 6086. [2023-12-16 17:23:09,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6086 states, 4519 states have (on average 1.6454967913255145) internal successors, (7436), 4816 states have internal predecessors, (7436), 1286 states have call successors, (1286), 227 states have call predecessors, (1286), 280 states have return successors, (1666), 1246 states have call predecessors, (1666), 1281 states have call successors, (1666) [2023-12-16 17:23:09,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 10388 transitions. [2023-12-16 17:23:09,458 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 10388 transitions. Word has length 85 [2023-12-16 17:23:09,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:09,458 INFO L495 AbstractCegarLoop]: Abstraction has 6086 states and 10388 transitions. [2023-12-16 17:23:09,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-16 17:23:09,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 10388 transitions. [2023-12-16 17:23:09,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:23:09,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:09,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:09,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:09,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:09,667 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:09,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:09,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1634080149, now seen corresponding path program 1 times [2023-12-16 17:23:09,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:09,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926126454] [2023-12-16 17:23:09,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:09,667 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 [2023-12-16 17:23:09,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:09,681 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:09,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:23:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:09,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:23:09,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:23:09,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:09,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:09,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926126454] [2023-12-16 17:23:09,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926126454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:09,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:09,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:23:09,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446328847] [2023-12-16 17:23:09,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:09,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:23:09,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:09,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:23:09,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:23:09,934 INFO L87 Difference]: Start difference. First operand 6086 states and 10388 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:23:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:10,421 INFO L93 Difference]: Finished difference Result 11865 states and 20378 transitions. [2023-12-16 17:23:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:23:10,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 92 [2023-12-16 17:23:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:10,445 INFO L225 Difference]: With dead ends: 11865 [2023-12-16 17:23:10,445 INFO L226 Difference]: Without dead ends: 6086 [2023-12-16 17:23:10,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:23:10,458 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 234 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:10,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 2233 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:23:10,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6086 states. [2023-12-16 17:23:10,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6086 to 6086. [2023-12-16 17:23:10,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6086 states, 4519 states have (on average 1.6215976986058862) internal successors, (7328), 4816 states have internal predecessors, (7328), 1286 states have call successors, (1286), 227 states have call predecessors, (1286), 280 states have return successors, (1666), 1246 states have call predecessors, (1666), 1281 states have call successors, (1666) [2023-12-16 17:23:10,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 10280 transitions. [2023-12-16 17:23:10,774 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 10280 transitions. Word has length 92 [2023-12-16 17:23:10,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:10,774 INFO L495 AbstractCegarLoop]: Abstraction has 6086 states and 10280 transitions. [2023-12-16 17:23:10,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:23:10,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 10280 transitions. [2023-12-16 17:23:10,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:23:10,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:10,776 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:23:10,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:10,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:10,982 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:10,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:10,983 INFO L85 PathProgramCache]: Analyzing trace with hash -797151753, now seen corresponding path program 1 times [2023-12-16 17:23:10,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:10,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966182268] [2023-12-16 17:23:10,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:10,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:10,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:10,984 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:10,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 17:23:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:11,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:23:11,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:23:11,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:11,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:11,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966182268] [2023-12-16 17:23:11,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966182268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:11,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:11,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:23:11,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989176593] [2023-12-16 17:23:11,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:11,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:23:11,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:11,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:23:11,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:23:11,320 INFO L87 Difference]: Start difference. First operand 6086 states and 10280 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:23:13,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:13,789 INFO L93 Difference]: Finished difference Result 11813 states and 19984 transitions. [2023-12-16 17:23:13,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:23:13,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2023-12-16 17:23:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:13,858 INFO L225 Difference]: With dead ends: 11813 [2023-12-16 17:23:13,859 INFO L226 Difference]: Without dead ends: 6691 [2023-12-16 17:23:13,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:23:13,877 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1997 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 3051 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 3501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 3051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:13,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2073 Valid, 1507 Invalid, 3501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 3051 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 17:23:13,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2023-12-16 17:23:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 6372. [2023-12-16 17:23:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6372 states, 4731 states have (on average 1.606425702811245) internal successors, (7600), 5050 states have internal predecessors, (7600), 1312 states have call successors, (1312), 255 states have call predecessors, (1312), 328 states have return successors, (1766), 1270 states have call predecessors, (1766), 1307 states have call successors, (1766) [2023-12-16 17:23:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6372 states to 6372 states and 10678 transitions. [2023-12-16 17:23:14,231 INFO L78 Accepts]: Start accepts. Automaton has 6372 states and 10678 transitions. Word has length 97 [2023-12-16 17:23:14,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:14,231 INFO L495 AbstractCegarLoop]: Abstraction has 6372 states and 10678 transitions. [2023-12-16 17:23:14,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:23:14,232 INFO L276 IsEmpty]: Start isEmpty. Operand 6372 states and 10678 transitions. [2023-12-16 17:23:14,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:23:14,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:14,238 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:14,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:14,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:14,445 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:14,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:14,446 INFO L85 PathProgramCache]: Analyzing trace with hash -447182463, now seen corresponding path program 1 times [2023-12-16 17:23:14,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:14,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272230150] [2023-12-16 17:23:14,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:14,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:14,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:14,447 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:14,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:23:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:14,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:23:14,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:23:14,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:14,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:14,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272230150] [2023-12-16 17:23:14,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272230150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:14,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:14,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:23:14,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427366573] [2023-12-16 17:23:14,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:14,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:23:14,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:14,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:23:14,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:23:14,855 INFO L87 Difference]: Start difference. First operand 6372 states and 10678 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:23:18,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:18,026 INFO L93 Difference]: Finished difference Result 12207 states and 20462 transitions. [2023-12-16 17:23:18,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:23:18,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-12-16 17:23:18,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:18,049 INFO L225 Difference]: With dead ends: 12207 [2023-12-16 17:23:18,049 INFO L226 Difference]: Without dead ends: 6798 [2023-12-16 17:23:18,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:23:18,060 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1605 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 3965 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 4312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:18,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 1986 Invalid, 4312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 3965 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 17:23:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6798 states. [2023-12-16 17:23:18,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6798 to 6313. [2023-12-16 17:23:18,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6313 states, 4688 states have (on average 1.6043088737201365) internal successors, (7521), 5000 states have internal predecessors, (7521), 1302 states have call successors, (1302), 255 states have call predecessors, (1302), 322 states have return successors, (1717), 1261 states have call predecessors, (1717), 1297 states have call successors, (1717) [2023-12-16 17:23:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 10540 transitions. [2023-12-16 17:23:18,352 INFO L78 Accepts]: Start accepts. Automaton has 6313 states and 10540 transitions. Word has length 101 [2023-12-16 17:23:18,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:18,352 INFO L495 AbstractCegarLoop]: Abstraction has 6313 states and 10540 transitions. [2023-12-16 17:23:18,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:23:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 6313 states and 10540 transitions. [2023-12-16 17:23:18,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:23:18,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:18,354 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:18,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:18,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:18,561 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:18,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:18,561 INFO L85 PathProgramCache]: Analyzing trace with hash -24480637, now seen corresponding path program 1 times [2023-12-16 17:23:18,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:18,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007329315] [2023-12-16 17:23:18,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:18,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:18,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:18,563 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:18,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 17:23:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:18,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:23:18,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:18,982 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:23:18,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:18,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:18,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007329315] [2023-12-16 17:23:18,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007329315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:18,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:18,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:23:18,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4483136] [2023-12-16 17:23:18,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:18,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:23:18,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:18,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:23:18,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:23:18,984 INFO L87 Difference]: Start difference. First operand 6313 states and 10540 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:23:21,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:21,727 INFO L93 Difference]: Finished difference Result 13942 states and 23454 transitions. [2023-12-16 17:23:21,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:23:21,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-12-16 17:23:21,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:21,768 INFO L225 Difference]: With dead ends: 13942 [2023-12-16 17:23:21,768 INFO L226 Difference]: Without dead ends: 8584 [2023-12-16 17:23:21,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:23:21,783 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 1695 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:21,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 1292 Invalid, 3137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 2754 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 17:23:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8584 states. [2023-12-16 17:23:22,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8584 to 8309. [2023-12-16 17:23:22,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8309 states, 6140 states have (on average 1.6053745928338763) internal successors, (9857), 6560 states have internal predecessors, (9857), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-16 17:23:22,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8309 states to 8309 states and 13944 transitions. [2023-12-16 17:23:22,305 INFO L78 Accepts]: Start accepts. Automaton has 8309 states and 13944 transitions. Word has length 101 [2023-12-16 17:23:22,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:22,306 INFO L495 AbstractCegarLoop]: Abstraction has 8309 states and 13944 transitions. [2023-12-16 17:23:22,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:23:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 8309 states and 13944 transitions. [2023-12-16 17:23:22,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:23:22,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:22,308 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:22,316 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 [2023-12-16 17:23:22,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:22,514 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:22,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:22,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1779130980, now seen corresponding path program 1 times [2023-12-16 17:23:22,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:22,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647062504] [2023-12-16 17:23:22,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:22,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:22,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:22,517 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:22,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 17:23:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:22,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:23:22,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:23:22,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:22,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:22,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647062504] [2023-12-16 17:23:22,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647062504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:22,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:22,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:23:22,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049906306] [2023-12-16 17:23:22,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:22,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:23:22,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:22,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:23:22,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:23:22,860 INFO L87 Difference]: Start difference. First operand 8309 states and 13944 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 17:23:23,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:23,554 INFO L93 Difference]: Finished difference Result 8400 states and 14099 transitions. [2023-12-16 17:23:23,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:23:23,555 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2023-12-16 17:23:23,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:23,594 INFO L225 Difference]: With dead ends: 8400 [2023-12-16 17:23:23,594 INFO L226 Difference]: Without dead ends: 8385 [2023-12-16 17:23:23,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:23:23,600 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 776 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:23,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1389 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:23:23,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8385 states. [2023-12-16 17:23:24,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8385 to 8315. [2023-12-16 17:23:24,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8315 states, 6146 states have (on average 1.6047835990888382) internal successors, (9863), 6566 states have internal predecessors, (9863), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-16 17:23:24,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8315 states to 8315 states and 13950 transitions. [2023-12-16 17:23:24,072 INFO L78 Accepts]: Start accepts. Automaton has 8315 states and 13950 transitions. Word has length 102 [2023-12-16 17:23:24,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:24,073 INFO L495 AbstractCegarLoop]: Abstraction has 8315 states and 13950 transitions. [2023-12-16 17:23:24,073 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 17:23:24,073 INFO L276 IsEmpty]: Start isEmpty. Operand 8315 states and 13950 transitions. [2023-12-16 17:23:24,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 17:23:24,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:24,075 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:23:24,094 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 [2023-12-16 17:23:24,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:24,282 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:24,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:24,282 INFO L85 PathProgramCache]: Analyzing trace with hash 128151750, now seen corresponding path program 1 times [2023-12-16 17:23:24,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:24,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490073430] [2023-12-16 17:23:24,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:24,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:24,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:24,374 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:24,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 17:23:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:24,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:23:24,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:23:24,760 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:24,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:24,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490073430] [2023-12-16 17:23:24,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490073430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:24,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:24,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:23:24,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538764040] [2023-12-16 17:23:24,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:24,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:23:24,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:24,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:23:24,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:23:24,761 INFO L87 Difference]: Start difference. First operand 8315 states and 13950 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-16 17:23:25,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:25,202 INFO L93 Difference]: Finished difference Result 8336 states and 13977 transitions. [2023-12-16 17:23:25,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:23:25,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2023-12-16 17:23:25,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:25,231 INFO L225 Difference]: With dead ends: 8336 [2023-12-16 17:23:25,231 INFO L226 Difference]: Without dead ends: 8321 [2023-12-16 17:23:25,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:23:25,235 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 34 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:25,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3111 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:23:25,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2023-12-16 17:23:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 8315. [2023-12-16 17:23:25,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8315 states, 6146 states have (on average 1.603481939472828) internal successors, (9855), 6566 states have internal predecessors, (9855), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-16 17:23:25,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8315 states to 8315 states and 13942 transitions. [2023-12-16 17:23:25,699 INFO L78 Accepts]: Start accepts. Automaton has 8315 states and 13942 transitions. Word has length 107 [2023-12-16 17:23:25,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:25,699 INFO L495 AbstractCegarLoop]: Abstraction has 8315 states and 13942 transitions. [2023-12-16 17:23:25,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-16 17:23:25,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8315 states and 13942 transitions. [2023-12-16 17:23:25,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 17:23:25,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:25,702 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:25,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:25,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:25,909 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:25,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:25,909 INFO L85 PathProgramCache]: Analyzing trace with hash 948875537, now seen corresponding path program 1 times [2023-12-16 17:23:25,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:25,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492796842] [2023-12-16 17:23:25,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:25,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:25,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:25,910 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:25,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 17:23:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:26,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:23:26,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:26,304 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 17:23:26,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:26,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:26,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492796842] [2023-12-16 17:23:26,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492796842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:26,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:26,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:23:26,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660434098] [2023-12-16 17:23:26,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:26,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:23:26,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:26,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:23:26,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:23:26,306 INFO L87 Difference]: Start difference. First operand 8315 states and 13942 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 17:23:28,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:28,440 INFO L93 Difference]: Finished difference Result 16615 states and 27933 transitions. [2023-12-16 17:23:28,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:23:28,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2023-12-16 17:23:28,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:28,480 INFO L225 Difference]: With dead ends: 16615 [2023-12-16 17:23:28,480 INFO L226 Difference]: Without dead ends: 8347 [2023-12-16 17:23:28,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:23:28,504 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1205 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:28,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 1433 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 17:23:28,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8347 states. [2023-12-16 17:23:28,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8347 to 8315. [2023-12-16 17:23:28,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8315 states, 6146 states have (on average 1.6021802798568174) internal successors, (9847), 6566 states have internal predecessors, (9847), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-16 17:23:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8315 states to 8315 states and 13934 transitions. [2023-12-16 17:23:28,955 INFO L78 Accepts]: Start accepts. Automaton has 8315 states and 13934 transitions. Word has length 116 [2023-12-16 17:23:28,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:28,956 INFO L495 AbstractCegarLoop]: Abstraction has 8315 states and 13934 transitions. [2023-12-16 17:23:28,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 17:23:28,956 INFO L276 IsEmpty]: Start isEmpty. Operand 8315 states and 13934 transitions. [2023-12-16 17:23:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 17:23:28,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:28,959 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:28,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:29,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:29,166 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:29,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:29,167 INFO L85 PathProgramCache]: Analyzing trace with hash 20413106, now seen corresponding path program 1 times [2023-12-16 17:23:29,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:29,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237586198] [2023-12-16 17:23:29,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:29,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:29,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:29,169 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:29,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 17:23:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:29,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:23:29,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:29,466 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:23:29,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:29,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:29,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237586198] [2023-12-16 17:23:29,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237586198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:29,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:29,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:23:29,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121278567] [2023-12-16 17:23:29,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:29,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:23:29,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:23:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:23:29,467 INFO L87 Difference]: Start difference. First operand 8315 states and 13934 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 17:23:29,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:29,880 INFO L93 Difference]: Finished difference Result 8452 states and 14151 transitions. [2023-12-16 17:23:29,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:23:29,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 125 [2023-12-16 17:23:29,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:29,919 INFO L225 Difference]: With dead ends: 8452 [2023-12-16 17:23:29,920 INFO L226 Difference]: Without dead ends: 8437 [2023-12-16 17:23:29,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:23:29,927 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 47 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:29,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2411 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:23:29,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2023-12-16 17:23:30,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 8323. [2023-12-16 17:23:30,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8323 states, 6154 states have (on average 1.6007474813129672) internal successors, (9851), 6574 states have internal predecessors, (9851), 1762 states have call successors, (1762), 341 states have call predecessors, (1762), 406 states have return successors, (2325), 1689 states have call predecessors, (2325), 1757 states have call successors, (2325) [2023-12-16 17:23:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8323 states to 8323 states and 13938 transitions. [2023-12-16 17:23:30,408 INFO L78 Accepts]: Start accepts. Automaton has 8323 states and 13938 transitions. Word has length 125 [2023-12-16 17:23:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:30,409 INFO L495 AbstractCegarLoop]: Abstraction has 8323 states and 13938 transitions. [2023-12-16 17:23:30,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 17:23:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand 8323 states and 13938 transitions. [2023-12-16 17:23:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 17:23:30,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:30,413 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:30,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:30,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:30,620 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:30,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:30,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1973995480, now seen corresponding path program 1 times [2023-12-16 17:23:30,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:30,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822989559] [2023-12-16 17:23:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:30,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:30,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:30,622 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:30,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 17:23:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:30,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:23:30,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 17:23:31,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:23:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 17:23:31,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:31,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822989559] [2023-12-16 17:23:31,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822989559] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:23:31,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:23:31,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-12-16 17:23:31,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296387403] [2023-12-16 17:23:31,404 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:23:31,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 17:23:31,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:31,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 17:23:31,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-16 17:23:31,405 INFO L87 Difference]: Start difference. First operand 8323 states and 13938 transitions. Second operand has 15 states, 15 states have (on average 10.0) internal successors, (150), 13 states have internal predecessors, (150), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-16 17:23:36,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:36,518 INFO L93 Difference]: Finished difference Result 27422 states and 46603 transitions. [2023-12-16 17:23:36,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:23:36,519 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.0) internal successors, (150), 13 states have internal predecessors, (150), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) Word has length 153 [2023-12-16 17:23:36,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:36,593 INFO L225 Difference]: With dead ends: 27422 [2023-12-16 17:23:36,593 INFO L226 Difference]: Without dead ends: 19146 [2023-12-16 17:23:36,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2023-12-16 17:23:36,614 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 4376 mSDsluCounter, 2989 mSDsCounter, 0 mSdLazyCounter, 6079 mSolverCounterSat, 1248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4490 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 7327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1248 IncrementalHoareTripleChecker+Valid, 6079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:36,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4490 Valid, 3741 Invalid, 7327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1248 Valid, 6079 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-16 17:23:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19146 states. [2023-12-16 17:23:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19146 to 19043. [2023-12-16 17:23:37,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19043 states, 13685 states have (on average 1.593204238217026) internal successors, (21803), 14674 states have internal predecessors, (21803), 4494 states have call successors, (4494), 678 states have call predecessors, (4494), 863 states have return successors, (6154), 4394 states have call predecessors, (6154), 4489 states have call successors, (6154) [2023-12-16 17:23:38,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19043 states to 19043 states and 32451 transitions. [2023-12-16 17:23:38,081 INFO L78 Accepts]: Start accepts. Automaton has 19043 states and 32451 transitions. Word has length 153 [2023-12-16 17:23:38,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:38,083 INFO L495 AbstractCegarLoop]: Abstraction has 19043 states and 32451 transitions. [2023-12-16 17:23:38,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.0) internal successors, (150), 13 states have internal predecessors, (150), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-16 17:23:38,083 INFO L276 IsEmpty]: Start isEmpty. Operand 19043 states and 32451 transitions. [2023-12-16 17:23:38,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 17:23:38,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:38,093 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 4, 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] [2023-12-16 17:23:38,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-16 17:23:38,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:38,301 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:38,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:38,301 INFO L85 PathProgramCache]: Analyzing trace with hash 609603883, now seen corresponding path program 1 times [2023-12-16 17:23:38,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:38,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356948121] [2023-12-16 17:23:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:38,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:38,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:38,302 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:38,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-16 17:23:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:38,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:23:38,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:23:38,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:38,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:38,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356948121] [2023-12-16 17:23:38,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356948121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:38,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:38,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:23:38,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571045659] [2023-12-16 17:23:38,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:38,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:23:38,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:23:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:23:38,568 INFO L87 Difference]: Start difference. First operand 19043 states and 32451 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:23:40,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:23:40,103 INFO L93 Difference]: Finished difference Result 38185 states and 65338 transitions. [2023-12-16 17:23:40,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:23:40,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2023-12-16 17:23:40,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:23:40,192 INFO L225 Difference]: With dead ends: 38185 [2023-12-16 17:23:40,193 INFO L226 Difference]: Without dead ends: 19205 [2023-12-16 17:23:40,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:23:40,245 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 18 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:40,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2242 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:23:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19205 states. [2023-12-16 17:23:41,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19205 to 19203. [2023-12-16 17:23:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19203 states, 13821 states have (on average 1.5856305621879747) internal successors, (21915), 14794 states have internal predecessors, (21915), 4482 states have call successors, (4482), 738 states have call predecessors, (4482), 899 states have return successors, (6038), 4374 states have call predecessors, (6038), 4477 states have call successors, (6038) [2023-12-16 17:23:41,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19203 states to 19203 states and 32435 transitions. [2023-12-16 17:23:41,796 INFO L78 Accepts]: Start accepts. Automaton has 19203 states and 32435 transitions. Word has length 154 [2023-12-16 17:23:41,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:23:41,796 INFO L495 AbstractCegarLoop]: Abstraction has 19203 states and 32435 transitions. [2023-12-16 17:23:41,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:23:41,797 INFO L276 IsEmpty]: Start isEmpty. Operand 19203 states and 32435 transitions. [2023-12-16 17:23:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 17:23:41,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:23:41,806 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:41,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:42,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:42,014 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:23:42,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:23:42,014 INFO L85 PathProgramCache]: Analyzing trace with hash -160687924, now seen corresponding path program 1 times [2023-12-16 17:23:42,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:23:42,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146344309] [2023-12-16 17:23:42,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:23:42,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:42,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:23:42,016 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:23:42,017 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 (33)] Waiting until timeout for monitored process [2023-12-16 17:23:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:23:42,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:23:42,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:23:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-12-16 17:23:42,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:23:42,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:23:42,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146344309] [2023-12-16 17:23:42,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146344309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:23:42,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:23:42,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:23:42,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663499319] [2023-12-16 17:23:42,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:23:42,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:23:42,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:23:42,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:23:42,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:23:42,338 INFO L87 Difference]: Start difference. First operand 19203 states and 32435 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Received shutdown request... [2023-12-16 17:23:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:23:43,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:23:43,541 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 25 mSDsluCounter, 4609 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5380 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:23:43,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5380 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:23:43,542 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:23:43,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-16 17:23:43,558 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:23:43,558 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:23:43,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:23:43,753 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (19203states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (24668 states constructed, input type IntersectNwa). [2023-12-16 17:23:43,756 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:23:43,758 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:23:43,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:23:43 BoogieIcfgContainer [2023-12-16 17:23:43,759 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:23:43,759 INFO L158 Benchmark]: Toolchain (without parser) took 65976.64ms. Allocated memory was 186.6MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 134.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 17:23:43,759 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:23:43,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 708.41ms. Allocated memory was 186.6MB in the beginning and 295.7MB in the end (delta: 109.1MB). Free memory was 134.4MB in the beginning and 240.9MB in the end (delta: -106.5MB). Peak memory consumption was 49.4MB. Max. memory is 8.0GB. [2023-12-16 17:23:43,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.66ms. Allocated memory is still 295.7MB. Free memory was 240.9MB in the beginning and 236.2MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:23:43,760 INFO L158 Benchmark]: Boogie Preprocessor took 116.95ms. Allocated memory is still 295.7MB. Free memory was 236.2MB in the beginning and 228.3MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 17:23:43,760 INFO L158 Benchmark]: RCFGBuilder took 1215.87ms. Allocated memory is still 295.7MB. Free memory was 228.3MB in the beginning and 255.1MB in the end (delta: -26.7MB). Peak memory consumption was 143.1MB. Max. memory is 8.0GB. [2023-12-16 17:23:43,760 INFO L158 Benchmark]: TraceAbstraction took 63849.65ms. Allocated memory was 295.7MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 254.5MB in the beginning and 1.8GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 17:23:43,761 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 708.41ms. Allocated memory was 186.6MB in the beginning and 295.7MB in the end (delta: 109.1MB). Free memory was 134.4MB in the beginning and 240.9MB in the end (delta: -106.5MB). Peak memory consumption was 49.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 81.66ms. Allocated memory is still 295.7MB. Free memory was 240.9MB in the beginning and 236.2MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 116.95ms. Allocated memory is still 295.7MB. Free memory was 236.2MB in the beginning and 228.3MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1215.87ms. Allocated memory is still 295.7MB. Free memory was 228.3MB in the beginning and 255.1MB in the end (delta: -26.7MB). Peak memory consumption was 143.1MB. Max. memory is 8.0GB. * TraceAbstraction took 63849.65ms. Allocated memory was 295.7MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 254.5MB in the beginning and 1.8GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] - GenericResultAtLocation [Line: 86]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] - GenericResultAtLocation [Line: 100]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] - GenericResultAtLocation [Line: 286]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] - GenericResultAtLocation [Line: 1765]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] - GenericResultAtLocation [Line: 1884]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] - GenericResultAtLocation [Line: 2546]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] - GenericResultAtLocation [Line: 2638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] - GenericResultAtLocation [Line: 3004]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] - GenericResultAtLocation [Line: 3013]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 3009]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3009). Cancelled while NwaCegarLoop was constructing difference of abstraction (19203states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (24668 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 520 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 63.8s, OverallIterations: 32, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 38.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25214 SdHoareTripleChecker+Valid, 27.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24500 mSDsluCounter, 82600 SdHoareTripleChecker+Invalid, 22.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60004 mSDsCounter, 5869 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40739 IncrementalHoareTripleChecker+Invalid, 46608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5869 mSolverCounterUnsat, 22596 mSDtfsCounter, 40739 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3096 GetRequests, 2871 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19203occurred in iteration=31, InterpolantAutomatonStates: 225, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.8s AutomataMinimizationTime, 31 MinimizatonAttempts, 3211 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 2854 NumberOfCodeBlocks, 2854 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2974 ConstructedInterpolants, 0 QuantifiedInterpolants, 5776 SizeOfPredicates, 56 NumberOfNonLiveVariables, 22873 ConjunctsInSsa, 199 ConjunctsInUnsatCore, 33 InterpolantComputations, 31 PerfectInterpolantSequences, 444/456 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown