/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:25:40,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:25:40,813 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 17:25:40,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:25:40,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:25:40,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:25:40,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:25:40,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:25:40,841 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:25:40,844 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:25:40,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:25:40,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:25:40,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:25:40,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:25:40,846 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:25:40,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:25:40,847 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:25:40,847 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:25:40,847 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:25:40,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:25:40,847 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:25:40,848 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:25:40,848 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:25:40,848 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:25:40,848 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:25:40,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:25:40,849 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:25:40,849 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:25:40,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:25:40,849 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:25:40,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:25:40,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:25:40,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:25:40,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:25:40,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:25:40,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:25:40,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:25:40,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:25:40,851 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:25:40,851 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:25:40,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:25:40,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:25:40,853 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:25:40,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:25:40,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:25:40,853 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:25:40,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:25:41,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:25:41,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:25:41,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:25:41,062 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:25:41,064 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:25:41,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product31.cil.c [2023-12-16 17:25:42,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:25:42,406 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:25:42,407 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product31.cil.c [2023-12-16 17:25:42,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58f780ad2/c2a21974d73a4b3aacc1dbc52a970b9f/FLAG96116a4c9 [2023-12-16 17:25:42,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58f780ad2/c2a21974d73a4b3aacc1dbc52a970b9f [2023-12-16 17:25:42,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:25:42,445 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:25:42,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:25:42,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:25:42,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:25:42,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:25:42" (1/1) ... [2023-12-16 17:25:42,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e41f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:42, skipping insertion in model container [2023-12-16 17:25:42,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:25:42" (1/1) ... [2023-12-16 17:25:42,524 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:25:42,699 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product31.cil.c[5910,5923] [2023-12-16 17:25:42,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:25:42,946 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:25:42,958 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:25:42,973 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product31.cil.c[5910,5923] [2023-12-16 17:25:43,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:25:43,037 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:25:43,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2023-12-16 17:25:43,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [169] [2023-12-16 17:25:43,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [183] [2023-12-16 17:25:43,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [284] [2023-12-16 17:25:43,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [293] [2023-12-16 17:25:43,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [960] [2023-12-16 17:25:43,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1122] [2023-12-16 17:25:43,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2737] [2023-12-16 17:25:43,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2775] [2023-12-16 17:25:43,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3141] [2023-12-16 17:25:43,062 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product31.cil.c[5910,5923] [2023-12-16 17:25:43,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:25:43,185 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:25:43,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43 WrapperNode [2023-12-16 17:25:43,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:25:43,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:25:43,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:25:43,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:25:43,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,250 INFO L138 Inliner]: procedures = 99, calls = 346, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 870 [2023-12-16 17:25:43,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:25:43,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:25:43,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:25:43,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:25:43,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,279 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,307 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 17:25:43,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,354 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:25:43,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:25:43,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:25:43,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:25:43,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (1/1) ... [2023-12-16 17:25:43,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:25:43,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:25:43,410 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 17:25:43,417 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 17:25:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 17:25:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 17:25:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 17:25:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 17:25:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 17:25:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 17:25:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-16 17:25:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-16 17:25:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:25:43,435 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:25:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 17:25:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 17:25:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 17:25:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 17:25:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-16 17:25:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-16 17:25:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-16 17:25:43,437 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-16 17:25:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 17:25:43,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 17:25:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 17:25:43,440 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 17:25:43,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:25:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 17:25:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 17:25:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 17:25:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 17:25:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-16 17:25:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-16 17:25:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 17:25:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 17:25:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:25:43,442 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:25:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 17:25:43,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 17:25:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 17:25:43,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 17:25:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:25:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:25:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:25:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 17:25:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 17:25:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 17:25:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 17:25:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 17:25:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 17:25:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 17:25:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-16 17:25:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 17:25:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 17:25:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 17:25:43,445 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 17:25:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 17:25:43,445 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 17:25:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 17:25:43,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 17:25:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 17:25:43,445 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 17:25:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-12-16 17:25:43,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-12-16 17:25:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 17:25:43,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 17:25:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:25:43,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:25:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 17:25:43,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 17:25:43,590 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:25:43,592 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:25:44,453 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:25:44,596 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:25:44,597 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:25:44,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:25:44 BoogieIcfgContainer [2023-12-16 17:25:44,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:25:44,598 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:25:44,599 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:25:44,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:25:44,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:25:42" (1/3) ... [2023-12-16 17:25:44,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edd040c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:25:44, skipping insertion in model container [2023-12-16 17:25:44,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:25:43" (2/3) ... [2023-12-16 17:25:44,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edd040c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:25:44, skipping insertion in model container [2023-12-16 17:25:44,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:25:44" (3/3) ... [2023-12-16 17:25:44,603 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product31.cil.c [2023-12-16 17:25:44,615 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:25:44,615 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:25:44,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:25:44,673 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;@22f57c7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:25:44,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:25:44,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 565 states, 438 states have (on average 1.7168949771689497) internal successors, (752), 459 states have internal predecessors, (752), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-16 17:25:44,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:25:44,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:44,706 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:44,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:44,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:44,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1752086407, now seen corresponding path program 1 times [2023-12-16 17:25:44,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:44,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834936025] [2023-12-16 17:25:44,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:44,724 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 17:25:44,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:44,726 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 17:25:44,767 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 17:25:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:45,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:25:45,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:45,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:45,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:45,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834936025] [2023-12-16 17:25:45,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834936025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:45,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:45,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:25:45,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714846229] [2023-12-16 17:25:45,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:45,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:25:45,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:45,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:25:45,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:25:45,173 INFO L87 Difference]: Start difference. First operand has 565 states, 438 states have (on average 1.7168949771689497) internal successors, (752), 459 states have internal predecessors, (752), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 17:25:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:45,284 INFO L93 Difference]: Finished difference Result 583 states and 977 transitions. [2023-12-16 17:25:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:25:45,291 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 93 [2023-12-16 17:25:45,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:45,307 INFO L225 Difference]: With dead ends: 583 [2023-12-16 17:25:45,307 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:25:45,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 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 17:25:45,313 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:45,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 926 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:25:45,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:25:45,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:25:45,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 436 states have (on average 1.7087155963302751) internal successors, (745), 455 states have internal predecessors, (745), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 938 transitions. [2023-12-16 17:25:45,408 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 938 transitions. Word has length 93 [2023-12-16 17:25:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:45,409 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 938 transitions. [2023-12-16 17:25:45,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 17:25:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 938 transitions. [2023-12-16 17:25:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:25:45,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:45,418 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:45,425 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 17:25:45,624 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 17:25:45,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:45,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:45,625 INFO L85 PathProgramCache]: Analyzing trace with hash -547864678, now seen corresponding path program 1 times [2023-12-16 17:25:45,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:45,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284559984] [2023-12-16 17:25:45,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:45,626 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 17:25:45,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:45,628 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 17:25:45,630 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 17:25:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:45,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:45,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:45,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:45,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:45,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284559984] [2023-12-16 17:25:45,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284559984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:45,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:45,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549133306] [2023-12-16 17:25:45,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:45,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:45,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:45,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:45,980 INFO L87 Difference]: Start difference. First operand 561 states and 938 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:46,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:46,100 INFO L93 Difference]: Finished difference Result 1110 states and 1858 transitions. [2023-12-16 17:25:46,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:46,101 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2023-12-16 17:25:46,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:46,105 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:25:46,105 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:25:46,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:46,111 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 14 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:46,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2728 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:46,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:25:46,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:25:46,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 436 states have (on average 1.7064220183486238) internal successors, (744), 455 states have internal predecessors, (744), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:46,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 937 transitions. [2023-12-16 17:25:46,132 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 937 transitions. Word has length 94 [2023-12-16 17:25:46,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:46,132 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 937 transitions. [2023-12-16 17:25:46,132 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:46,133 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 937 transitions. [2023-12-16 17:25:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 17:25:46,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:46,137 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:46,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 17:25:46,348 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 17:25:46,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:46,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:46,349 INFO L85 PathProgramCache]: Analyzing trace with hash -278379437, now seen corresponding path program 1 times [2023-12-16 17:25:46,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:46,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428883850] [2023-12-16 17:25:46,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:46,354 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 17:25:46,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:46,355 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 17:25:46,356 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 17:25:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:46,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:46,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:46,697 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:46,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:46,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:46,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428883850] [2023-12-16 17:25:46,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428883850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:46,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:46,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:46,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694664443] [2023-12-16 17:25:46,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:46,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:46,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:46,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:46,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:46,699 INFO L87 Difference]: Start difference. First operand 561 states and 937 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:46,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:46,797 INFO L93 Difference]: Finished difference Result 1110 states and 1857 transitions. [2023-12-16 17:25:46,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:46,798 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2023-12-16 17:25:46,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:46,803 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:25:46,803 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:25:46,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:46,807 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 12 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:46,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2728 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:46,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:25:46,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:25:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 436 states have (on average 1.7041284403669725) internal successors, (743), 455 states have internal predecessors, (743), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:46,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 936 transitions. [2023-12-16 17:25:46,835 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 936 transitions. Word has length 95 [2023-12-16 17:25:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:46,837 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 936 transitions. [2023-12-16 17:25:46,837 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 936 transitions. [2023-12-16 17:25:46,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:25:46,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:46,841 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:46,851 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 17:25:47,050 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 17:25:47,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:47,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:47,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1791308342, now seen corresponding path program 1 times [2023-12-16 17:25:47,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:47,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252223002] [2023-12-16 17:25:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:47,052 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 17:25:47,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:47,053 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 17:25:47,053 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 17:25:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:47,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:47,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:47,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:47,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:47,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252223002] [2023-12-16 17:25:47,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252223002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:47,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:47,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:47,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768095736] [2023-12-16 17:25:47,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:47,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:47,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:47,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:47,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:47,326 INFO L87 Difference]: Start difference. First operand 561 states and 936 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:47,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:47,404 INFO L93 Difference]: Finished difference Result 1110 states and 1856 transitions. [2023-12-16 17:25:47,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:47,404 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2023-12-16 17:25:47,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:47,407 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:25:47,407 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:25:47,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:47,410 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 10 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:47,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2728 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:25:47,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:25:47,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 436 states have (on average 1.701834862385321) internal successors, (742), 455 states have internal predecessors, (742), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:47,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 935 transitions. [2023-12-16 17:25:47,424 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 935 transitions. Word has length 96 [2023-12-16 17:25:47,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:47,424 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 935 transitions. [2023-12-16 17:25:47,424 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:47,424 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 935 transitions. [2023-12-16 17:25:47,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:25:47,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:47,428 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:47,443 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 17:25:47,634 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 17:25:47,634 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:47,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:47,635 INFO L85 PathProgramCache]: Analyzing trace with hash -462267345, now seen corresponding path program 1 times [2023-12-16 17:25:47,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994618085] [2023-12-16 17:25:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:47,635 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 17:25:47,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:47,636 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 17:25:47,639 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 17:25:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:47,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:47,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:47,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:47,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:47,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994618085] [2023-12-16 17:25:47,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994618085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:47,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:47,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:47,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409942087] [2023-12-16 17:25:47,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:47,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:47,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:47,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:47,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:47,897 INFO L87 Difference]: Start difference. First operand 561 states and 935 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:48,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:48,015 INFO L93 Difference]: Finished difference Result 1110 states and 1855 transitions. [2023-12-16 17:25:48,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:48,015 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97 [2023-12-16 17:25:48,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:48,018 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:25:48,018 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:25:48,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:48,020 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 8 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:48,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2728 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:48,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:25:48,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:25:48,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 436 states have (on average 1.6995412844036697) internal successors, (741), 455 states have internal predecessors, (741), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:48,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 934 transitions. [2023-12-16 17:25:48,037 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 934 transitions. Word has length 97 [2023-12-16 17:25:48,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:48,037 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 934 transitions. [2023-12-16 17:25:48,037 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:48,038 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 934 transitions. [2023-12-16 17:25:48,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 17:25:48,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:48,040 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:48,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:25:48,251 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 17:25:48,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:48,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:48,252 INFO L85 PathProgramCache]: Analyzing trace with hash 701942994, now seen corresponding path program 1 times [2023-12-16 17:25:48,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:48,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076428095] [2023-12-16 17:25:48,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:48,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:25:48,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:48,253 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 17:25:48,281 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 17:25:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:48,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:48,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:48,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:48,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:48,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076428095] [2023-12-16 17:25:48,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076428095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:48,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:48,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:48,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105799923] [2023-12-16 17:25:48,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:48,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:48,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:48,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:48,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:48,512 INFO L87 Difference]: Start difference. First operand 561 states and 934 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:48,586 INFO L93 Difference]: Finished difference Result 1110 states and 1854 transitions. [2023-12-16 17:25:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:48,587 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 98 [2023-12-16 17:25:48,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:48,590 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 17:25:48,590 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:25:48,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:48,593 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 6 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:48,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2728 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:48,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:25:48,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:25:48,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 436 states have (on average 1.6972477064220184) internal successors, (740), 455 states have internal predecessors, (740), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:48,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 933 transitions. [2023-12-16 17:25:48,607 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 933 transitions. Word has length 98 [2023-12-16 17:25:48,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:48,608 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 933 transitions. [2023-12-16 17:25:48,609 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:48,609 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 933 transitions. [2023-12-16 17:25:48,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 17:25:48,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:48,611 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:48,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:25:48,818 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 17:25:48,818 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:48,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:48,819 INFO L85 PathProgramCache]: Analyzing trace with hash 443337739, now seen corresponding path program 1 times [2023-12-16 17:25:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:48,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193570715] [2023-12-16 17:25:48,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:48,820 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 17:25:48,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:48,821 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 17:25:48,840 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 17:25:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:49,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:25:49,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:49,094 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:49,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:49,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:49,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193570715] [2023-12-16 17:25:49,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193570715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:49,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:49,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:25:49,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904565782] [2023-12-16 17:25:49,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:49,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:25:49,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:25:49,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:25:49,096 INFO L87 Difference]: Start difference. First operand 561 states and 933 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:25:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:49,239 INFO L93 Difference]: Finished difference Result 1076 states and 1786 transitions. [2023-12-16 17:25:49,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:25:49,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 99 [2023-12-16 17:25:49,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:49,242 INFO L225 Difference]: With dead ends: 1076 [2023-12-16 17:25:49,243 INFO L226 Difference]: Without dead ends: 575 [2023-12-16 17:25:49,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:25:49,245 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 115 mSDsluCounter, 4450 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5358 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:49,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5358 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:49,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-16 17:25:49,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 573. [2023-12-16 17:25:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 445 states have (on average 1.6943820224719102) internal successors, (754), 466 states have internal predecessors, (754), 100 states have call successors, (100), 26 states have call predecessors, (100), 27 states have return successors, (97), 93 states have call predecessors, (97), 95 states have call successors, (97) [2023-12-16 17:25:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 951 transitions. [2023-12-16 17:25:49,261 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 951 transitions. Word has length 99 [2023-12-16 17:25:49,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:49,261 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 951 transitions. [2023-12-16 17:25:49,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:25:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 951 transitions. [2023-12-16 17:25:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 17:25:49,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:49,264 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:49,276 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 17:25:49,477 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 17:25:49,477 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:49,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:49,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2093474538, now seen corresponding path program 1 times [2023-12-16 17:25:49,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:49,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17595522] [2023-12-16 17:25:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:49,478 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 17:25:49,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:49,479 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 17:25:49,483 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 17:25:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:49,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:49,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:49,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:49,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:49,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17595522] [2023-12-16 17:25:49,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17595522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:49,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:49,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:49,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947340739] [2023-12-16 17:25:49,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:49,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:49,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:49,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:49,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:49,772 INFO L87 Difference]: Start difference. First operand 573 states and 951 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:49,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:49,849 INFO L93 Difference]: Finished difference Result 1126 states and 1878 transitions. [2023-12-16 17:25:49,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:49,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 99 [2023-12-16 17:25:49,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:49,852 INFO L225 Difference]: With dead ends: 1126 [2023-12-16 17:25:49,852 INFO L226 Difference]: Without dead ends: 555 [2023-12-16 17:25:49,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:49,855 INFO L413 NwaCegarLoop]: 912 mSDtfsCounter, 3 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:49,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2729 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:25:49,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-16 17:25:49,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-16 17:25:49,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 430 states have (on average 1.6883720930232557) internal successors, (726), 449 states have internal predecessors, (726), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:49,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 919 transitions. [2023-12-16 17:25:49,868 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 919 transitions. Word has length 99 [2023-12-16 17:25:49,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:49,868 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 919 transitions. [2023-12-16 17:25:49,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:49,869 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 919 transitions. [2023-12-16 17:25:49,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 17:25:49,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:49,871 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:49,878 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 17:25:50,080 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 17:25:50,083 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:50,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:50,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1416652905, now seen corresponding path program 1 times [2023-12-16 17:25:50,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:50,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774786803] [2023-12-16 17:25:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:50,084 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 17:25:50,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:50,085 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 17:25:50,086 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 17:25:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:50,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:50,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:50,352 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:50,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:50,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774786803] [2023-12-16 17:25:50,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774786803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:50,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:50,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:50,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553430482] [2023-12-16 17:25:50,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:50,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:50,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:50,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:50,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:50,354 INFO L87 Difference]: Start difference. First operand 555 states and 919 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:50,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:50,493 INFO L93 Difference]: Finished difference Result 1064 states and 1764 transitions. [2023-12-16 17:25:50,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:50,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 100 [2023-12-16 17:25:50,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:50,498 INFO L225 Difference]: With dead ends: 1064 [2023-12-16 17:25:50,498 INFO L226 Difference]: Without dead ends: 555 [2023-12-16 17:25:50,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:50,502 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 88 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:50,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2544 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:50,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-16 17:25:50,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-16 17:25:50,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 430 states have (on average 1.6790697674418604) internal successors, (722), 449 states have internal predecessors, (722), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:50,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 915 transitions. [2023-12-16 17:25:50,516 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 915 transitions. Word has length 100 [2023-12-16 17:25:50,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:50,517 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 915 transitions. [2023-12-16 17:25:50,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 915 transitions. [2023-12-16 17:25:50,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:25:50,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:50,521 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:50,534 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 17:25:50,728 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 17:25:50,728 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:50,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:50,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1655832558, now seen corresponding path program 1 times [2023-12-16 17:25:50,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:50,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574101259] [2023-12-16 17:25:50,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:50,729 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 17:25:50,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:50,730 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 17:25:50,735 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 17:25:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:50,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:50,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:50,987 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:50,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:50,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:50,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574101259] [2023-12-16 17:25:50,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574101259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:50,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:50,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:50,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008619689] [2023-12-16 17:25:50,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:50,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:50,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:50,989 INFO L87 Difference]: Start difference. First operand 555 states and 915 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:51,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:51,112 INFO L93 Difference]: Finished difference Result 1064 states and 1760 transitions. [2023-12-16 17:25:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:51,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2023-12-16 17:25:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:51,115 INFO L225 Difference]: With dead ends: 1064 [2023-12-16 17:25:51,115 INFO L226 Difference]: Without dead ends: 555 [2023-12-16 17:25:51,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:51,118 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 83 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:51,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2544 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:51,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-16 17:25:51,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-16 17:25:51,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 430 states have (on average 1.669767441860465) internal successors, (718), 449 states have internal predecessors, (718), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:51,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 911 transitions. [2023-12-16 17:25:51,130 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 911 transitions. Word has length 101 [2023-12-16 17:25:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:51,130 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 911 transitions. [2023-12-16 17:25:51,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 911 transitions. [2023-12-16 17:25:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:25:51,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:51,133 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:51,140 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 17:25:51,339 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 17:25:51,340 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:51,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:51,340 INFO L85 PathProgramCache]: Analyzing trace with hash -230993796, now seen corresponding path program 1 times [2023-12-16 17:25:51,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:51,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893934619] [2023-12-16 17:25:51,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:51,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:25:51,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:51,341 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 17:25:51,342 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 17:25:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:51,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:51,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:51,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:51,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:51,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893934619] [2023-12-16 17:25:51,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893934619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:51,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:51,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:51,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393356121] [2023-12-16 17:25:51,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:51,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:51,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:51,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:51,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:51,612 INFO L87 Difference]: Start difference. First operand 555 states and 911 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:51,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:51,722 INFO L93 Difference]: Finished difference Result 1064 states and 1756 transitions. [2023-12-16 17:25:51,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:51,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2023-12-16 17:25:51,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:51,725 INFO L225 Difference]: With dead ends: 1064 [2023-12-16 17:25:51,725 INFO L226 Difference]: Without dead ends: 555 [2023-12-16 17:25:51,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:51,727 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 78 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:51,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2544 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:51,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-12-16 17:25:51,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2023-12-16 17:25:51,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 430 states have (on average 1.6604651162790698) internal successors, (714), 449 states have internal predecessors, (714), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 907 transitions. [2023-12-16 17:25:51,737 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 907 transitions. Word has length 102 [2023-12-16 17:25:51,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:51,737 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 907 transitions. [2023-12-16 17:25:51,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:51,738 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 907 transitions. [2023-12-16 17:25:51,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:25:51,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:51,739 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:51,746 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 17:25:51,946 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 17:25:51,946 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:51,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:51,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1449243396, now seen corresponding path program 1 times [2023-12-16 17:25:51,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:51,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267649900] [2023-12-16 17:25:51,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:51,947 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 17:25:51,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:51,948 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 17:25:51,955 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 17:25:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:52,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:25:52,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:52,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:52,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:52,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267649900] [2023-12-16 17:25:52,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267649900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:52,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:52,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:25:52,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772461199] [2023-12-16 17:25:52,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:52,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:25:52,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:25:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:25:52,235 INFO L87 Difference]: Start difference. First operand 555 states and 907 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:25:52,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:52,379 INFO L93 Difference]: Finished difference Result 1064 states and 1752 transitions. [2023-12-16 17:25:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:25:52,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 102 [2023-12-16 17:25:52,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:52,382 INFO L225 Difference]: With dead ends: 1064 [2023-12-16 17:25:52,382 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:25:52,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 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 17:25:52,384 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 108 mSDsluCounter, 4323 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 5204 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:52,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 5204 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:52,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:25:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:25:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 409 states have (on average 1.662591687041565) internal successors, (680), 428 states have internal predecessors, (680), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 873 transitions. [2023-12-16 17:25:52,397 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 873 transitions. Word has length 102 [2023-12-16 17:25:52,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:52,397 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 873 transitions. [2023-12-16 17:25:52,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:25:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 873 transitions. [2023-12-16 17:25:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 17:25:52,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:52,400 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:52,408 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 17:25:52,607 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 17:25:52,608 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:52,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:52,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1237663821, now seen corresponding path program 1 times [2023-12-16 17:25:52,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:52,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947315478] [2023-12-16 17:25:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:52,609 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 17:25:52,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:52,610 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 17:25:52,611 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 17:25:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:52,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:52,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:52,853 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:52,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:52,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:52,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947315478] [2023-12-16 17:25:52,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947315478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:52,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:52,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:52,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005804159] [2023-12-16 17:25:52,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:52,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:52,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:52,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:52,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:52,855 INFO L87 Difference]: Start difference. First operand 534 states and 873 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:52,928 INFO L93 Difference]: Finished difference Result 1043 states and 1718 transitions. [2023-12-16 17:25:52,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:52,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2023-12-16 17:25:52,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:52,932 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:25:52,932 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:25:52,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 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 17:25:52,934 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 39 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:52,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2530 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:52,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:25:52,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:25:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 409 states have (on average 1.6601466992665037) internal successors, (679), 428 states have internal predecessors, (679), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:52,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 872 transitions. [2023-12-16 17:25:52,944 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 872 transitions. Word has length 103 [2023-12-16 17:25:52,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:52,944 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 872 transitions. [2023-12-16 17:25:52,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:52,944 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 872 transitions. [2023-12-16 17:25:52,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 17:25:52,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:52,946 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:52,956 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 17:25:53,156 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 17:25:53,156 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:53,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:53,157 INFO L85 PathProgramCache]: Analyzing trace with hash -729291423, now seen corresponding path program 1 times [2023-12-16 17:25:53,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:53,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161671094] [2023-12-16 17:25:53,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:53,157 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 17:25:53,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:53,158 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 17:25:53,163 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 17:25:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:53,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:53,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:53,425 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:53,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:53,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:53,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161671094] [2023-12-16 17:25:53,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161671094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:53,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:53,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:53,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295188469] [2023-12-16 17:25:53,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:53,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:53,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:53,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:53,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:53,426 INFO L87 Difference]: Start difference. First operand 534 states and 872 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:53,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:53,508 INFO L93 Difference]: Finished difference Result 1043 states and 1717 transitions. [2023-12-16 17:25:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:53,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2023-12-16 17:25:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:53,510 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:25:53,510 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:25:53,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 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 17:25:53,512 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 37 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:53,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2530 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:53,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:25:53,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:25:53,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 409 states have (on average 1.6577017114914425) internal successors, (678), 428 states have internal predecessors, (678), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 871 transitions. [2023-12-16 17:25:53,522 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 871 transitions. Word has length 104 [2023-12-16 17:25:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:53,523 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 871 transitions. [2023-12-16 17:25:53,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:53,523 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 871 transitions. [2023-12-16 17:25:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 17:25:53,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:53,525 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:53,534 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 17:25:53,736 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 17:25:53,736 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:53,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:53,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1557082246, now seen corresponding path program 1 times [2023-12-16 17:25:53,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:53,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697235266] [2023-12-16 17:25:53,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:53,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:25:53,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:53,738 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 17:25:53,738 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 17:25:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:53,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:25:53,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:53,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:53,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:53,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697235266] [2023-12-16 17:25:53,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697235266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:53,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:53,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:53,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567129657] [2023-12-16 17:25:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:53,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:25:53,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:25:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:25:53,990 INFO L87 Difference]: Start difference. First operand 534 states and 871 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:54,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:54,063 INFO L93 Difference]: Finished difference Result 1043 states and 1716 transitions. [2023-12-16 17:25:54,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:25:54,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2023-12-16 17:25:54,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:54,066 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:25:54,066 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:25:54,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 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 17:25:54,069 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 35 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:54,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2530 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:54,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:25:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:25:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 409 states have (on average 1.6552567237163813) internal successors, (677), 428 states have internal predecessors, (677), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 870 transitions. [2023-12-16 17:25:54,081 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 870 transitions. Word has length 105 [2023-12-16 17:25:54,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:54,081 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 870 transitions. [2023-12-16 17:25:54,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:25:54,081 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 870 transitions. [2023-12-16 17:25:54,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 17:25:54,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:54,083 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:54,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:25:54,290 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 17:25:54,290 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:54,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:54,291 INFO L85 PathProgramCache]: Analyzing trace with hash -499244168, now seen corresponding path program 1 times [2023-12-16 17:25:54,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:54,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865812479] [2023-12-16 17:25:54,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:54,292 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 17:25:54,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:54,293 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 17:25:54,294 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 17:25:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:54,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:25:54,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:54,569 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:25:54,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:54,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:54,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865812479] [2023-12-16 17:25:54,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865812479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:54,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:54,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:25:54,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551368830] [2023-12-16 17:25:54,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:54,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:25:54,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:54,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:25:54,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:25:54,570 INFO L87 Difference]: Start difference. First operand 534 states and 870 transitions. Second operand has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:25:54,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:54,734 INFO L93 Difference]: Finished difference Result 1037 states and 1704 transitions. [2023-12-16 17:25:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:25:54,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 105 [2023-12-16 17:25:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:54,737 INFO L225 Difference]: With dead ends: 1037 [2023-12-16 17:25:54,737 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 17:25:54,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 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 17:25:54,739 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 24 mSDsluCounter, 5029 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5870 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:54,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5870 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:25:54,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 17:25:54,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2023-12-16 17:25:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 409 states have (on average 1.6528117359413204) internal successors, (676), 428 states have internal predecessors, (676), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-16 17:25:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 869 transitions. [2023-12-16 17:25:54,750 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 869 transitions. Word has length 105 [2023-12-16 17:25:54,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:54,750 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 869 transitions. [2023-12-16 17:25:54,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:25:54,750 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 869 transitions. [2023-12-16 17:25:54,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 17:25:54,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:54,752 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:54,760 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 17:25:54,959 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 17:25:54,959 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:54,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:54,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2113658646, now seen corresponding path program 1 times [2023-12-16 17:25:54,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:54,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962053194] [2023-12-16 17:25:54,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:54,960 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 17:25:54,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:54,961 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 17:25:54,961 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 17:25:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:55,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:25:55,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:25:55,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:55,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:55,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962053194] [2023-12-16 17:25:55,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962053194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:55,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:55,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:55,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382119855] [2023-12-16 17:25:55,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:55,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:25:55,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:55,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:25:55,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:55,274 INFO L87 Difference]: Start difference. First operand 534 states and 869 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:25:55,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:55,830 INFO L93 Difference]: Finished difference Result 1034 states and 1725 transitions. [2023-12-16 17:25:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:25:55,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 106 [2023-12-16 17:25:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:55,834 INFO L225 Difference]: With dead ends: 1034 [2023-12-16 17:25:55,834 INFO L226 Difference]: Without dead ends: 538 [2023-12-16 17:25:55,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:25:55,836 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 821 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:55,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 2120 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:25:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-12-16 17:25:55,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2023-12-16 17:25:55,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 412 states have (on average 1.6480582524271845) internal successors, (679), 431 states have internal predecessors, (679), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (95), 92 states have call predecessors, (95), 94 states have call successors, (95) [2023-12-16 17:25:55,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 873 transitions. [2023-12-16 17:25:55,851 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 873 transitions. Word has length 106 [2023-12-16 17:25:55,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:55,851 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 873 transitions. [2023-12-16 17:25:55,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:25:55,851 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 873 transitions. [2023-12-16 17:25:55,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 17:25:55,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:55,854 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:55,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:25:56,064 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 17:25:56,064 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:56,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:56,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2045506402, now seen corresponding path program 1 times [2023-12-16 17:25:56,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:56,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363789723] [2023-12-16 17:25:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:56,065 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 17:25:56,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:56,066 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 17:25:56,067 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 17:25:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:56,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:25:56,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:25:56,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:56,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:56,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363789723] [2023-12-16 17:25:56,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363789723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:56,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:56,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:56,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762876254] [2023-12-16 17:25:56,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:56,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:25:56,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:56,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:25:56,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:56,374 INFO L87 Difference]: Start difference. First operand 538 states and 873 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:25:56,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:56,924 INFO L93 Difference]: Finished difference Result 1043 states and 1732 transitions. [2023-12-16 17:25:56,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:25:56,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 108 [2023-12-16 17:25:56,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:56,928 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 17:25:56,928 INFO L226 Difference]: Without dead ends: 543 [2023-12-16 17:25:56,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:25:56,930 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 822 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:56,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 2121 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:25:56,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-16 17:25:56,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2023-12-16 17:25:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 416 states have (on average 1.6418269230769231) internal successors, (683), 435 states have internal predecessors, (683), 99 states have call successors, (99), 28 states have call predecessors, (99), 27 states have return successors, (96), 92 states have call predecessors, (96), 94 states have call successors, (96) [2023-12-16 17:25:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 878 transitions. [2023-12-16 17:25:56,952 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 878 transitions. Word has length 108 [2023-12-16 17:25:56,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:56,952 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 878 transitions. [2023-12-16 17:25:56,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:25:56,952 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 878 transitions. [2023-12-16 17:25:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 17:25:56,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:56,954 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:56,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:25:57,161 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 17:25:57,162 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:57,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:57,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1735815530, now seen corresponding path program 1 times [2023-12-16 17:25:57,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:57,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623344000] [2023-12-16 17:25:57,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:57,163 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 17:25:57,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:57,164 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 17:25:57,166 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 17:25:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:57,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:25:57,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:57,478 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:25:57,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:57,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:57,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623344000] [2023-12-16 17:25:57,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623344000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:57,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:57,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:57,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009785960] [2023-12-16 17:25:57,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:57,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:25:57,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:25:57,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:57,479 INFO L87 Difference]: Start difference. First operand 543 states and 878 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:25:58,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:58,018 INFO L93 Difference]: Finished difference Result 1054 states and 1741 transitions. [2023-12-16 17:25:58,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:25:58,019 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 110 [2023-12-16 17:25:58,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:58,021 INFO L225 Difference]: With dead ends: 1054 [2023-12-16 17:25:58,021 INFO L226 Difference]: Without dead ends: 549 [2023-12-16 17:25:58,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:25:58,023 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 810 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:58,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2121 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:25:58,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-12-16 17:25:58,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2023-12-16 17:25:58,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 421 states have (on average 1.6342042755344417) internal successors, (688), 440 states have internal predecessors, (688), 99 states have call successors, (99), 29 states have call predecessors, (99), 28 states have return successors, (97), 92 states have call predecessors, (97), 94 states have call successors, (97) [2023-12-16 17:25:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 884 transitions. [2023-12-16 17:25:58,035 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 884 transitions. Word has length 110 [2023-12-16 17:25:58,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:58,035 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 884 transitions. [2023-12-16 17:25:58,035 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:25:58,035 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 884 transitions. [2023-12-16 17:25:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 17:25:58,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:58,038 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:58,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:25:58,244 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 17:25:58,244 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:58,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:58,245 INFO L85 PathProgramCache]: Analyzing trace with hash -601768598, now seen corresponding path program 1 times [2023-12-16 17:25:58,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:58,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163806592] [2023-12-16 17:25:58,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:58,245 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 17:25:58,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:58,246 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 17:25:58,248 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 17:25:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:58,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:25:58,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:25:58,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:25:58,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:25:58,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163806592] [2023-12-16 17:25:58,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163806592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:25:58,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:25:58,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:25:58,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49946471] [2023-12-16 17:25:58,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:25:58,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:25:58,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:25:58,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:25:58,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:25:58,563 INFO L87 Difference]: Start difference. First operand 549 states and 884 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:25:59,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:25:59,106 INFO L93 Difference]: Finished difference Result 1067 states and 1752 transitions. [2023-12-16 17:25:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:25:59,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 112 [2023-12-16 17:25:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:25:59,110 INFO L225 Difference]: With dead ends: 1067 [2023-12-16 17:25:59,110 INFO L226 Difference]: Without dead ends: 556 [2023-12-16 17:25:59,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:25:59,112 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 813 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:25:59,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2121 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:25:59,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-16 17:25:59,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-12-16 17:25:59,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 427 states have (on average 1.6252927400468384) internal successors, (694), 446 states have internal predecessors, (694), 99 states have call successors, (99), 30 states have call predecessors, (99), 29 states have return successors, (98), 92 states have call predecessors, (98), 94 states have call successors, (98) [2023-12-16 17:25:59,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 891 transitions. [2023-12-16 17:25:59,126 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 891 transitions. Word has length 112 [2023-12-16 17:25:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:25:59,126 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 891 transitions. [2023-12-16 17:25:59,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:25:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 891 transitions. [2023-12-16 17:25:59,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 17:25:59,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:25:59,128 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:25:59,138 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 17:25:59,338 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 17:25:59,338 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:25:59,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:25:59,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1243824106, now seen corresponding path program 1 times [2023-12-16 17:25:59,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:25:59,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657547826] [2023-12-16 17:25:59,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:25:59,339 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 17:25:59,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:25:59,340 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 17:25:59,348 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 17:25:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:25:59,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 17:25:59,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:25:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:25:59,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:26:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:26:00,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:00,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657547826] [2023-12-16 17:26:00,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657547826] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:26:00,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:26:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-16 17:26:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345331510] [2023-12-16 17:26:00,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:26:00,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 17:26:00,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:00,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 17:26:00,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:26:00,205 INFO L87 Difference]: Start difference. First operand 556 states and 891 transitions. Second operand has 18 states, 16 states have (on average 8.5625) internal successors, (137), 14 states have internal predecessors, (137), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 12 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-16 17:26:06,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:26:06,610 INFO L93 Difference]: Finished difference Result 1713 states and 2801 transitions. [2023-12-16 17:26:06,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 17:26:06,611 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.5625) internal successors, (137), 14 states have internal predecessors, (137), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 12 states have call predecessors, (30), 7 states have call successors, (30) Word has length 114 [2023-12-16 17:26:06,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:26:06,616 INFO L225 Difference]: With dead ends: 1713 [2023-12-16 17:26:06,616 INFO L226 Difference]: Without dead ends: 1195 [2023-12-16 17:26:06,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=694, Unknown=0, NotChecked=0, Total=870 [2023-12-16 17:26:06,619 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 4936 mSDsluCounter, 3855 mSDsCounter, 0 mSdLazyCounter, 9508 mSolverCounterSat, 1530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5017 SdHoareTripleChecker+Valid, 4640 SdHoareTripleChecker+Invalid, 11038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1530 IncrementalHoareTripleChecker+Valid, 9508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:06,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5017 Valid, 4640 Invalid, 11038 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1530 Valid, 9508 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-12-16 17:26:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2023-12-16 17:26:06,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1174. [2023-12-16 17:26:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 885 states have (on average 1.6316384180790962) internal successors, (1444), 925 states have internal predecessors, (1444), 226 states have call successors, (226), 56 states have call predecessors, (226), 62 states have return successors, (248), 223 states have call predecessors, (248), 221 states have call successors, (248) [2023-12-16 17:26:06,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1918 transitions. [2023-12-16 17:26:06,674 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1918 transitions. Word has length 114 [2023-12-16 17:26:06,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:26:06,675 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 1918 transitions. [2023-12-16 17:26:06,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.5625) internal successors, (137), 14 states have internal predecessors, (137), 8 states have call successors, (29), 5 states have call predecessors, (29), 10 states have return successors, (30), 12 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-16 17:26:06,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1918 transitions. [2023-12-16 17:26:06,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 17:26:06,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:26:06,678 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:26:06,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-12-16 17:26:06,886 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 17:26:06,886 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:26:06,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:26:06,887 INFO L85 PathProgramCache]: Analyzing trace with hash 790542978, now seen corresponding path program 1 times [2023-12-16 17:26:06,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:26:06,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897511576] [2023-12-16 17:26:06,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:26:06,888 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 17:26:06,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:26:06,889 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 17:26:06,890 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 17:26:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:26:07,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:26:07,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:26:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:26:07,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:26:07,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:07,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897511576] [2023-12-16 17:26:07,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897511576] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:26:07,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:26:07,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:26:07,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590830881] [2023-12-16 17:26:07,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:26:07,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:26:07,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:07,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:26:07,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:26:07,193 INFO L87 Difference]: Start difference. First operand 1174 states and 1918 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:26:07,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:26:07,348 INFO L93 Difference]: Finished difference Result 1694 states and 2765 transitions. [2023-12-16 17:26:07,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:26:07,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2023-12-16 17:26:07,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:26:07,351 INFO L225 Difference]: With dead ends: 1694 [2023-12-16 17:26:07,351 INFO L226 Difference]: Without dead ends: 548 [2023-12-16 17:26:07,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 110 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 17:26:07,355 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 23 mSDsluCounter, 4975 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5807 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:07,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 5807 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:26:07,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-16 17:26:07,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2023-12-16 17:26:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 421 states have (on average 1.6199524940617578) internal successors, (682), 440 states have internal predecessors, (682), 97 states have call successors, (97), 30 states have call predecessors, (97), 29 states have return successors, (96), 90 states have call predecessors, (96), 92 states have call successors, (96) [2023-12-16 17:26:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 875 transitions. [2023-12-16 17:26:07,370 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 875 transitions. Word has length 117 [2023-12-16 17:26:07,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:26:07,370 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 875 transitions. [2023-12-16 17:26:07,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:26:07,371 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 875 transitions. [2023-12-16 17:26:07,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 17:26:07,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:26:07,372 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:26:07,379 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 (23)] Ended with exit code 0 [2023-12-16 17:26:07,579 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 17:26:07,580 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:26:07,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:26:07,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1225911264, now seen corresponding path program 1 times [2023-12-16 17:26:07,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:26:07,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139009715] [2023-12-16 17:26:07,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:26:07,581 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 17:26:07,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:26:07,582 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 17:26:07,583 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 17:26:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:26:07,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 17:26:07,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:26:08,005 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:26:08,006 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:26:08,357 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:26:08,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:08,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139009715] [2023-12-16 17:26:08,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139009715] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:26:08,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:26:08,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-16 17:26:08,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231625258] [2023-12-16 17:26:08,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:26:08,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:26:08,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:08,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:26:08,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:26:08,359 INFO L87 Difference]: Start difference. First operand 548 states and 875 transitions. Second operand has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 12 states have internal predecessors, (141), 8 states have call successors, (30), 5 states have call predecessors, (30), 8 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-16 17:26:10,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:26:10,407 INFO L93 Difference]: Finished difference Result 1066 states and 1727 transitions. [2023-12-16 17:26:10,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:26:10,408 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 12 states have internal predecessors, (141), 8 states have call successors, (30), 5 states have call predecessors, (30), 8 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) Word has length 123 [2023-12-16 17:26:10,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:26:10,410 INFO L225 Difference]: With dead ends: 1066 [2023-12-16 17:26:10,410 INFO L226 Difference]: Without dead ends: 553 [2023-12-16 17:26:10,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:26:10,416 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1953 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 3548 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 4101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:10,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 1602 Invalid, 4101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3548 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 17:26:10,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-12-16 17:26:10,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 552. [2023-12-16 17:26:10,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 424 states have (on average 1.615566037735849) internal successors, (685), 443 states have internal predecessors, (685), 97 states have call successors, (97), 30 states have call predecessors, (97), 30 states have return successors, (101), 91 states have call predecessors, (101), 92 states have call successors, (101) [2023-12-16 17:26:10,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 883 transitions. [2023-12-16 17:26:10,443 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 883 transitions. Word has length 123 [2023-12-16 17:26:10,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:26:10,443 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 883 transitions. [2023-12-16 17:26:10,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 12 states have internal predecessors, (141), 8 states have call successors, (30), 5 states have call predecessors, (30), 8 states have return successors, (30), 10 states have call predecessors, (30), 7 states have call successors, (30) [2023-12-16 17:26:10,443 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 883 transitions. [2023-12-16 17:26:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 17:26:10,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:26:10,448 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:26:10,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:26:10,660 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 17:26:10,660 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:26:10,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:26:10,661 INFO L85 PathProgramCache]: Analyzing trace with hash 208137257, now seen corresponding path program 1 times [2023-12-16 17:26:10,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:26:10,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371168292] [2023-12-16 17:26:10,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:26:10,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:26:10,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:26:10,662 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 17:26:10,663 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 17:26:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:26:10,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:26:10,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:26:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:26:11,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:26:11,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:11,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371168292] [2023-12-16 17:26:11,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371168292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:26:11,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:26:11,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:26:11,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060715271] [2023-12-16 17:26:11,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:26:11,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:26:11,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:11,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:26:11,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:26:11,315 INFO L87 Difference]: Start difference. First operand 552 states and 883 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-16 17:26:14,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:26:14,921 INFO L93 Difference]: Finished difference Result 2174 states and 3568 transitions. [2023-12-16 17:26:14,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:26:14,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 125 [2023-12-16 17:26:14,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:26:14,929 INFO L225 Difference]: With dead ends: 2174 [2023-12-16 17:26:14,929 INFO L226 Difference]: Without dead ends: 1657 [2023-12-16 17:26:14,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:26:14,931 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 3810 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 4937 mSolverCounterSat, 697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3977 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 5634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 4937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:14,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3977 Valid, 1840 Invalid, 5634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [697 Valid, 4937 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-16 17:26:14,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2023-12-16 17:26:14,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1456. [2023-12-16 17:26:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1144 states have (on average 1.652097902097902) internal successors, (1890), 1180 states have internal predecessors, (1890), 237 states have call successors, (237), 72 states have call predecessors, (237), 74 states have return successors, (256), 217 states have call predecessors, (256), 232 states have call successors, (256) [2023-12-16 17:26:15,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 2383 transitions. [2023-12-16 17:26:15,008 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 2383 transitions. Word has length 125 [2023-12-16 17:26:15,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:26:15,008 INFO L495 AbstractCegarLoop]: Abstraction has 1456 states and 2383 transitions. [2023-12-16 17:26:15,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-16 17:26:15,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 2383 transitions. [2023-12-16 17:26:15,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 17:26:15,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:26:15,011 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:26:15,042 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 17:26:15,216 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 17:26:15,216 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:26:15,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:26:15,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1807958238, now seen corresponding path program 1 times [2023-12-16 17:26:15,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:26:15,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124050830] [2023-12-16 17:26:15,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:26:15,217 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 17:26:15,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:26:15,218 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 17:26:15,219 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 17:26:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:26:15,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:26:15,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:26:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:26:15,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:26:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:26:15,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:15,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124050830] [2023-12-16 17:26:15,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124050830] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:26:15,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:26:15,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-16 17:26:15,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490498400] [2023-12-16 17:26:15,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:26:15,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:26:15,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:15,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:26:15,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:26:15,850 INFO L87 Difference]: Start difference. First operand 1456 states and 2383 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (22), 7 states have call predecessors, (22), 5 states have call successors, (22) [2023-12-16 17:26:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:26:19,906 INFO L93 Difference]: Finished difference Result 5621 states and 9346 transitions. [2023-12-16 17:26:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 17:26:19,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (22), 7 states have call predecessors, (22), 5 states have call successors, (22) Word has length 124 [2023-12-16 17:26:19,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:26:19,927 INFO L225 Difference]: With dead ends: 5621 [2023-12-16 17:26:19,927 INFO L226 Difference]: Without dead ends: 4200 [2023-12-16 17:26:19,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:26:19,935 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 3536 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 5995 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3616 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 6966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 5995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:19,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3616 Valid, 2454 Invalid, 6966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 5995 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-16 17:26:19,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4200 states. [2023-12-16 17:26:20,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4200 to 4109. [2023-12-16 17:26:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4109 states, 3223 states have (on average 1.6366739062984796) internal successors, (5275), 3317 states have internal predecessors, (5275), 667 states have call successors, (667), 215 states have call predecessors, (667), 218 states have return successors, (781), 612 states have call predecessors, (781), 662 states have call successors, (781) [2023-12-16 17:26:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4109 states to 4109 states and 6723 transitions. [2023-12-16 17:26:20,152 INFO L78 Accepts]: Start accepts. Automaton has 4109 states and 6723 transitions. Word has length 124 [2023-12-16 17:26:20,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:26:20,153 INFO L495 AbstractCegarLoop]: Abstraction has 4109 states and 6723 transitions. [2023-12-16 17:26:20,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 6 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (22), 7 states have call predecessors, (22), 5 states have call successors, (22) [2023-12-16 17:26:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 4109 states and 6723 transitions. [2023-12-16 17:26:20,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 17:26:20,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:26:20,156 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:26:20,170 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 17:26:20,364 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 17:26:20,364 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:26:20,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:26:20,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1416987054, now seen corresponding path program 1 times [2023-12-16 17:26:20,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:26:20,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346865484] [2023-12-16 17:26:20,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:26:20,365 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 17:26:20,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:26:20,366 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 17:26:20,366 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 17:26:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:26:20,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:26:20,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:26:20,778 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:26:20,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:26:20,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:20,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346865484] [2023-12-16 17:26:20,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346865484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:26:20,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:26:20,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:26:20,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206102669] [2023-12-16 17:26:20,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:26:20,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:26:20,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:20,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:26:20,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:26:20,780 INFO L87 Difference]: Start difference. First operand 4109 states and 6723 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-16 17:26:25,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:26:25,452 INFO L93 Difference]: Finished difference Result 11789 states and 19670 transitions. [2023-12-16 17:26:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 17:26:25,453 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 130 [2023-12-16 17:26:25,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:26:25,496 INFO L225 Difference]: With dead ends: 11789 [2023-12-16 17:26:25,496 INFO L226 Difference]: Without dead ends: 7715 [2023-12-16 17:26:25,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:26:25,513 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 3265 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 6684 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3394 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 7469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 6684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:25,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3394 Valid, 2506 Invalid, 7469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 6684 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 17:26:25,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7715 states. [2023-12-16 17:26:25,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7715 to 7503. [2023-12-16 17:26:26,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7503 states, 5766 states have (on average 1.625043357613597) internal successors, (9370), 5986 states have internal predecessors, (9370), 1344 states have call successors, (1344), 359 states have call predecessors, (1344), 392 states have return successors, (1675), 1276 states have call predecessors, (1675), 1339 states have call successors, (1675) [2023-12-16 17:26:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7503 states to 7503 states and 12389 transitions. [2023-12-16 17:26:26,043 INFO L78 Accepts]: Start accepts. Automaton has 7503 states and 12389 transitions. Word has length 130 [2023-12-16 17:26:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:26:26,043 INFO L495 AbstractCegarLoop]: Abstraction has 7503 states and 12389 transitions. [2023-12-16 17:26:26,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-16 17:26:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand 7503 states and 12389 transitions. [2023-12-16 17:26:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 17:26:26,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:26:26,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:26:26,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 17:26:26,253 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 17:26:26,254 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:26:26,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:26:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1834383660, now seen corresponding path program 1 times [2023-12-16 17:26:26,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:26:26,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515540576] [2023-12-16 17:26:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:26:26,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:26:26,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:26:26,255 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 17:26:26,256 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 17:26:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:26:26,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:26:26,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:26:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:26:26,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:26:26,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:26,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515540576] [2023-12-16 17:26:26,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515540576] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:26:26,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:26:26,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:26:26,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781652747] [2023-12-16 17:26:26,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:26:26,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:26:26,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:26,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:26:26,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:26:26,647 INFO L87 Difference]: Start difference. First operand 7503 states and 12389 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-16 17:26:28,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:26:28,873 INFO L93 Difference]: Finished difference Result 16577 states and 27246 transitions. [2023-12-16 17:26:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:26:28,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 130 [2023-12-16 17:26:28,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:26:28,916 INFO L225 Difference]: With dead ends: 16577 [2023-12-16 17:26:28,917 INFO L226 Difference]: Without dead ends: 10778 [2023-12-16 17:26:28,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:26:28,933 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1976 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2071 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:28,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2071 Valid, 840 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 17:26:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10778 states. [2023-12-16 17:26:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10778 to 10743. [2023-12-16 17:26:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10743 states, 8029 states have (on average 1.5950927886411757) internal successors, (12807), 8409 states have internal predecessors, (12807), 2143 states have call successors, (2143), 496 states have call predecessors, (2143), 570 states have return successors, (2716), 2027 states have call predecessors, (2716), 2138 states have call successors, (2716) [2023-12-16 17:26:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10743 states to 10743 states and 17666 transitions. [2023-12-16 17:26:29,640 INFO L78 Accepts]: Start accepts. Automaton has 10743 states and 17666 transitions. Word has length 130 [2023-12-16 17:26:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:26:29,640 INFO L495 AbstractCegarLoop]: Abstraction has 10743 states and 17666 transitions. [2023-12-16 17:26:29,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-16 17:26:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 10743 states and 17666 transitions. [2023-12-16 17:26:29,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 17:26:29,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:26:29,642 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:26:29,653 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 17:26:29,848 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 17:26:29,848 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:26:29,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:26:29,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1875058410, now seen corresponding path program 1 times [2023-12-16 17:26:29,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:26:29,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673684105] [2023-12-16 17:26:29,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:26:29,849 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 17:26:29,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:26:29,850 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 17:26:29,864 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 17:26:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:26:30,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 17:26:30,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:26:30,265 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:26:30,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:26:30,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:30,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673684105] [2023-12-16 17:26:30,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673684105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:26:30,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:26:30,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 17:26:30,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765602672] [2023-12-16 17:26:30,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:26:30,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:26:30,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:30,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:26:30,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:26:30,267 INFO L87 Difference]: Start difference. First operand 10743 states and 17666 transitions. Second operand has 11 states, 10 states have (on average 8.6) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-16 17:26:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:26:33,222 INFO L93 Difference]: Finished difference Result 19563 states and 32291 transitions. [2023-12-16 17:26:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:26:33,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) Word has length 130 [2023-12-16 17:26:33,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:26:33,270 INFO L225 Difference]: With dead ends: 19563 [2023-12-16 17:26:33,270 INFO L226 Difference]: Without dead ends: 10703 [2023-12-16 17:26:33,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:26:33,296 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1312 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 4086 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 4449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 4086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:33,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1854 Invalid, 4449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 4086 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 17:26:33,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10703 states. [2023-12-16 17:26:34,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10703 to 10703. [2023-12-16 17:26:34,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10703 states, 8009 states have (on average 1.5947059557997254) internal successors, (12772), 8389 states have internal predecessors, (12772), 2128 states have call successors, (2128), 491 states have call predecessors, (2128), 565 states have return successors, (2701), 2012 states have call predecessors, (2701), 2123 states have call successors, (2701) [2023-12-16 17:26:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10703 states to 10703 states and 17601 transitions. [2023-12-16 17:26:34,124 INFO L78 Accepts]: Start accepts. Automaton has 10703 states and 17601 transitions. Word has length 130 [2023-12-16 17:26:34,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:26:34,125 INFO L495 AbstractCegarLoop]: Abstraction has 10703 states and 17601 transitions. [2023-12-16 17:26:34,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-16 17:26:34,126 INFO L276 IsEmpty]: Start isEmpty. Operand 10703 states and 17601 transitions. [2023-12-16 17:26:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 17:26:34,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:26:34,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:26:34,138 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 17:26:34,336 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 17:26:34,336 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:26:34,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:26:34,336 INFO L85 PathProgramCache]: Analyzing trace with hash 186626061, now seen corresponding path program 1 times [2023-12-16 17:26:34,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:26:34,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193267131] [2023-12-16 17:26:34,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:26:34,338 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 17:26:34,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:26:34,339 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 17:26:34,370 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 17:26:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:26:34,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:26:34,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:26:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:26:34,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:26:34,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:34,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193267131] [2023-12-16 17:26:34,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193267131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:26:34,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:26:34,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:26:34,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518807480] [2023-12-16 17:26:34,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:26:34,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:26:34,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:34,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:26:34,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:26:34,787 INFO L87 Difference]: Start difference. First operand 10703 states and 17601 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-16 17:26:38,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:26:38,885 INFO L93 Difference]: Finished difference Result 33279 states and 56654 transitions. [2023-12-16 17:26:38,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:26:38,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 138 [2023-12-16 17:26:38,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:26:39,021 INFO L225 Difference]: With dead ends: 33279 [2023-12-16 17:26:39,021 INFO L226 Difference]: Without dead ends: 22598 [2023-12-16 17:26:39,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:26:39,074 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 3256 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 2613 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3384 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 3390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 2613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:39,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3384 Valid, 1252 Invalid, 3390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [777 Valid, 2613 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 17:26:39,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22598 states. [2023-12-16 17:26:40,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22598 to 22157. [2023-12-16 17:26:40,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22157 states, 16175 states have (on average 1.5956105100463678) internal successors, (25809), 17109 states have internal predecessors, (25809), 4903 states have call successors, (4903), 863 states have call predecessors, (4903), 1078 states have return successors, (6860), 4739 states have call predecessors, (6860), 4898 states have call successors, (6860) [2023-12-16 17:26:41,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22157 states to 22157 states and 37572 transitions. [2023-12-16 17:26:41,137 INFO L78 Accepts]: Start accepts. Automaton has 22157 states and 37572 transitions. Word has length 138 [2023-12-16 17:26:41,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:26:41,137 INFO L495 AbstractCegarLoop]: Abstraction has 22157 states and 37572 transitions. [2023-12-16 17:26:41,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2023-12-16 17:26:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 22157 states and 37572 transitions. [2023-12-16 17:26:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 17:26:41,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:26:41,140 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:26:41,151 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 17:26:41,349 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 17:26:41,349 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:26:41,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:26:41,349 INFO L85 PathProgramCache]: Analyzing trace with hash 671511148, now seen corresponding path program 1 times [2023-12-16 17:26:41,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:26:41,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038575230] [2023-12-16 17:26:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:26:41,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:26:41,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:26:41,351 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 17:26:41,384 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 17:26:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:26:41,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:26:41,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:26:41,761 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:26:41,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:26:41,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:26:41,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038575230] [2023-12-16 17:26:41,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038575230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:26:41,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:26:41,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:26:41,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650030572] [2023-12-16 17:26:41,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:26:41,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:26:41,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:26:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:26:41,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:26:41,763 INFO L87 Difference]: Start difference. First operand 22157 states and 37572 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 6 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Received shutdown request... [2023-12-16 17:26:48,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:26:48,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:26:48,225 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 2702 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2831 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 3295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:26:48,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2831 Valid, 1358 Invalid, 3295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 17:26:48,226 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:26:48,230 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 (31)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:26:48,235 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 17:26:48,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-16 17:26:48,435 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 17:26:48,436 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (22157states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (65355 states constructed, input type IntersectNwa). [2023-12-16 17:26:48,439 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] [2023-12-16 17:26:48,441 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:26:48,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:26:48 BoogieIcfgContainer [2023-12-16 17:26:48,442 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:26:48,442 INFO L158 Benchmark]: Toolchain (without parser) took 65997.74ms. Allocated memory was 198.2MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 146.5MB in the beginning and 1.1GB in the end (delta: -974.2MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-16 17:26:48,442 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 151.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:26:48,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 738.80ms. Allocated memory was 198.2MB in the beginning and 270.5MB in the end (delta: 72.4MB). Free memory was 146.5MB in the beginning and 228.1MB in the end (delta: -81.6MB). Peak memory consumption was 66.7MB. Max. memory is 8.0GB. [2023-12-16 17:26:48,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.79ms. Allocated memory is still 270.5MB. Free memory was 228.1MB in the beginning and 222.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:26:48,443 INFO L158 Benchmark]: Boogie Preprocessor took 123.92ms. Allocated memory is still 270.5MB. Free memory was 222.8MB in the beginning and 214.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 17:26:48,443 INFO L158 Benchmark]: RCFGBuilder took 1221.85ms. Allocated memory is still 270.5MB. Free memory was 214.4MB in the beginning and 219.7MB in the end (delta: -5.2MB). Peak memory consumption was 135.8MB. Max. memory is 8.0GB. [2023-12-16 17:26:48,443 INFO L158 Benchmark]: TraceAbstraction took 63843.60ms. Allocated memory was 270.5MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 218.6MB in the beginning and 1.1GB in the end (delta: -902.1MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-16 17:26:48,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 151.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 738.80ms. Allocated memory was 198.2MB in the beginning and 270.5MB in the end (delta: 72.4MB). Free memory was 146.5MB in the beginning and 228.1MB in the end (delta: -81.6MB). Peak memory consumption was 66.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.79ms. Allocated memory is still 270.5MB. Free memory was 228.1MB in the beginning and 222.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 123.92ms. Allocated memory is still 270.5MB. Free memory was 222.8MB in the beginning and 214.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1221.85ms. Allocated memory is still 270.5MB. Free memory was 214.4MB in the beginning and 219.7MB in the end (delta: -5.2MB). Peak memory consumption was 135.8MB. Max. memory is 8.0GB. * TraceAbstraction took 63843.60ms. Allocated memory was 270.5MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 218.6MB in the beginning and 1.1GB in the end (delta: -902.1MB). Peak memory consumption was 1.8GB. 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,"Person.i","") [48] - GenericResultAtLocation [Line: 169]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [169] - GenericResultAtLocation [Line: 183]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [183] - GenericResultAtLocation [Line: 284]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [284] - GenericResultAtLocation [Line: 293]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [293] - GenericResultAtLocation [Line: 960]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [960] - GenericResultAtLocation [Line: 1122]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1122] - GenericResultAtLocation [Line: 2737]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2737] - GenericResultAtLocation [Line: 2775]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2775] - GenericResultAtLocation [Line: 3141]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3141] * 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: 289]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 289). Cancelled while NwaCegarLoop was constructing difference of abstraction (22157states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (65355 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 565 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 63.8s, OverallIterations: 30, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 41.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31577 SdHoareTripleChecker+Valid, 30.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30695 mSDsluCounter, 81585 SdHoareTripleChecker+Invalid, 25.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58646 mSDsCounter, 6815 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45238 IncrementalHoareTripleChecker+Invalid, 52053 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6815 mSolverCounterUnsat, 22939 mSDtfsCounter, 45238 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3717 GetRequests, 3517 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22157occurred in iteration=29, InterpolantAutomatonStates: 191, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.8s AutomataMinimizationTime, 29 MinimizatonAttempts, 1004 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 3299 NumberOfCodeBlocks, 3299 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 3627 ConstructedInterpolants, 0 QuantifiedInterpolants, 8121 SizeOfPredicates, 42 NumberOfNonLiveVariables, 22755 ConjunctsInSsa, 178 ConjunctsInUnsatCore, 33 InterpolantComputations, 27 PerfectInterpolantSequences, 536/556 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