./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da76b57a1451220816a27c40b8cda655a945b2081fe69d46a431c484896fab87 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 13:57:40,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 13:57:40,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 13:57:40,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 13:57:40,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 13:57:40,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 13:57:40,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 13:57:40,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 13:57:40,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 13:57:40,251 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 13:57:40,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 13:57:40,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 13:57:40,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 13:57:40,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 13:57:40,253 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 13:57:40,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 13:57:40,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 13:57:40,255 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 13:57:40,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 13:57:40,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 13:57:40,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 13:57:40,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 13:57:40,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 13:57:40,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 13:57:40,259 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 13:57:40,259 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 13:57:40,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 13:57:40,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 13:57:40,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 13:57:40,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 13:57:40,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 13:57:40,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 13:57:40,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:57:40,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 13:57:40,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 13:57:40,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 13:57:40,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 13:57:40,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 13:57:40,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 13:57:40,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 13:57:40,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 13:57:40,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 13:57:40,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da76b57a1451220816a27c40b8cda655a945b2081fe69d46a431c484896fab87 [2024-11-18 13:57:40,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 13:57:40,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 13:57:40,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 13:57:40,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 13:57:40,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 13:57:40,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2024-11-18 13:57:41,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 13:57:42,063 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 13:57:42,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2024-11-18 13:57:42,079 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1841a98/6d5c14c2be3f471a9cef4dc1600e5646/FLAG2a396aa3e [2024-11-18 13:57:42,396 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1841a98/6d5c14c2be3f471a9cef4dc1600e5646 [2024-11-18 13:57:42,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 13:57:42,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 13:57:42,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 13:57:42,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 13:57:42,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 13:57:42,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63859c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42, skipping insertion in model container [2024-11-18 13:57:42,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 13:57:42,900 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c[43703,43716] [2024-11-18 13:57:42,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:57:42,991 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 13:57:42,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-18 13:57:42,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [86] [2024-11-18 13:57:42,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [131] [2024-11-18 13:57:43,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [252] [2024-11-18 13:57:43,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1852] [2024-11-18 13:57:43,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1870] [2024-11-18 13:57:43,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2220] [2024-11-18 13:57:43,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2229] [2024-11-18 13:57:43,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2320] [2024-11-18 13:57:43,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2981] [2024-11-18 13:57:43,049 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c[43703,43716] [2024-11-18 13:57:43,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:57:43,091 INFO L204 MainTranslator]: Completed translation [2024-11-18 13:57:43,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43 WrapperNode [2024-11-18 13:57:43,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 13:57:43,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 13:57:43,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 13:57:43,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 13:57:43,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,155 INFO L138 Inliner]: procedures = 94, calls = 341, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1103 [2024-11-18 13:57:43,155 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 13:57:43,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 13:57:43,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 13:57:43,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 13:57:43,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,212 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]. [2024-11-18 13:57:43,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,254 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 13:57:43,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 13:57:43,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 13:57:43,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 13:57:43,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (1/1) ... [2024-11-18 13:57:43,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:57:43,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:43,299 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) [2024-11-18 13:57:43,301 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 [2024-11-18 13:57:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 13:57:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-18 13:57:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-18 13:57:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-18 13:57:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-18 13:57:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-18 13:57:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-18 13:57:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-18 13:57:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-18 13:57:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-18 13:57:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-18 13:57:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-18 13:57:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-18 13:57:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-18 13:57:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-18 13:57:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 13:57:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 13:57:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 13:57:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 13:57:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-18 13:57:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-18 13:57:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-18 13:57:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-18 13:57:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-18 13:57:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-18 13:57:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-18 13:57:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-18 13:57:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-18 13:57:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-18 13:57:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-18 13:57:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-18 13:57:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-18 13:57:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-18 13:57:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-18 13:57:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-18 13:57:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-18 13:57:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-18 13:57:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-18 13:57:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-18 13:57:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-18 13:57:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-18 13:57:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 13:57:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 13:57:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 13:57:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-18 13:57:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-18 13:57:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-18 13:57:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-18 13:57:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-18 13:57:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-18 13:57:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 13:57:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 13:57:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-18 13:57:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-18 13:57:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-11-18 13:57:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-11-18 13:57:43,486 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 13:57:43,488 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 13:57:44,450 INFO L? ?]: Removed 453 outVars from TransFormulas that were not future-live. [2024-11-18 13:57:44,451 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 13:57:44,476 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 13:57:44,476 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 13:57:44,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:57:44 BoogieIcfgContainer [2024-11-18 13:57:44,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 13:57:44,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 13:57:44,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 13:57:44,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 13:57:44,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:57:42" (1/3) ... [2024-11-18 13:57:44,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137b35e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:57:44, skipping insertion in model container [2024-11-18 13:57:44,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:43" (2/3) ... [2024-11-18 13:57:44,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137b35e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:57:44, skipping insertion in model container [2024-11-18 13:57:44,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:57:44" (3/3) ... [2024-11-18 13:57:44,486 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2024-11-18 13:57:44,500 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 13:57:44,501 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 13:57:44,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 13:57:44,581 INFO L333 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, 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;@9c9eb69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 13:57:44,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 13:57:44,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 554 states, 430 states have (on average 1.672093023255814) internal successors, (719), 448 states have internal predecessors, (719), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-18 13:57:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-18 13:57:44,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:44,601 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:44,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:44,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:44,607 INFO L85 PathProgramCache]: Analyzing trace with hash 861521184, now seen corresponding path program 1 times [2024-11-18 13:57:44,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:44,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337218788] [2024-11-18 13:57:44,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:44,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:45,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:45,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:45,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337218788] [2024-11-18 13:57:45,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337218788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:45,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:45,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:45,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341015319] [2024-11-18 13:57:45,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:45,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:45,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:45,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:45,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:45,098 INFO L87 Difference]: Start difference. First operand has 554 states, 430 states have (on average 1.672093023255814) internal successors, (719), 448 states have internal predecessors, (719), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:45,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:45,259 INFO L93 Difference]: Finished difference Result 1101 states and 1826 transitions. [2024-11-18 13:57:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:57:45,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2024-11-18 13:57:45,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:45,286 INFO L225 Difference]: With dead ends: 1101 [2024-11-18 13:57:45,286 INFO L226 Difference]: Without dead ends: 549 [2024-11-18 13:57:45,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 13:57:45,299 INFO L432 NwaCegarLoop]: 896 mSDtfsCounter, 6 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:45,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2682 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-18 13:57:45,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-18 13:57:45,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.6619718309859155) internal successors, (708), 443 states have internal predecessors, (708), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:45,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 901 transitions. [2024-11-18 13:57:45,382 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 901 transitions. Word has length 63 [2024-11-18 13:57:45,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:45,382 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 901 transitions. [2024-11-18 13:57:45,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:45,383 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 901 transitions. [2024-11-18 13:57:45,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-18 13:57:45,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:45,389 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:45,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 13:57:45,390 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:45,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:45,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2026902989, now seen corresponding path program 1 times [2024-11-18 13:57:45,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:45,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487092735] [2024-11-18 13:57:45,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:45,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:45,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:45,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487092735] [2024-11-18 13:57:45,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487092735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:45,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:45,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:45,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564292119] [2024-11-18 13:57:45,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:45,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:45,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:45,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:45,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:45,564 INFO L87 Difference]: Start difference. First operand 549 states and 901 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:45,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:45,637 INFO L93 Difference]: Finished difference Result 1081 states and 1779 transitions. [2024-11-18 13:57:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:45,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-11-18 13:57:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:45,644 INFO L225 Difference]: With dead ends: 1081 [2024-11-18 13:57:45,645 INFO L226 Difference]: Without dead ends: 549 [2024-11-18 13:57:45,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:45,650 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 4 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:45,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2654 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:45,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-18 13:57:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-18 13:57:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.65962441314554) internal successors, (707), 443 states have internal predecessors, (707), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:45,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 900 transitions. [2024-11-18 13:57:45,681 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 900 transitions. Word has length 64 [2024-11-18 13:57:45,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:45,681 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 900 transitions. [2024-11-18 13:57:45,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 900 transitions. [2024-11-18 13:57:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 13:57:45,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:45,684 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:45,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 13:57:45,684 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:45,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:45,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1702940924, now seen corresponding path program 1 times [2024-11-18 13:57:45,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:45,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175392950] [2024-11-18 13:57:45,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:45,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:45,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:45,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175392950] [2024-11-18 13:57:45,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175392950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:45,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:45,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:45,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296820542] [2024-11-18 13:57:45,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:45,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:45,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:45,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:45,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:45,827 INFO L87 Difference]: Start difference. First operand 549 states and 900 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:45,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:45,874 INFO L93 Difference]: Finished difference Result 1081 states and 1778 transitions. [2024-11-18 13:57:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:45,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-11-18 13:57:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:45,878 INFO L225 Difference]: With dead ends: 1081 [2024-11-18 13:57:45,878 INFO L226 Difference]: Without dead ends: 549 [2024-11-18 13:57:45,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:45,884 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 3 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:45,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2654 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:45,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-18 13:57:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-18 13:57:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.6572769953051643) internal successors, (706), 443 states have internal predecessors, (706), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:45,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 899 transitions. [2024-11-18 13:57:45,922 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 899 transitions. Word has length 65 [2024-11-18 13:57:45,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:45,923 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 899 transitions. [2024-11-18 13:57:45,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:45,923 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 899 transitions. [2024-11-18 13:57:45,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 13:57:45,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:45,926 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:45,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 13:57:45,927 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:45,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:45,927 INFO L85 PathProgramCache]: Analyzing trace with hash 145697999, now seen corresponding path program 1 times [2024-11-18 13:57:45,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:45,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106322939] [2024-11-18 13:57:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:45,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:46,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:46,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106322939] [2024-11-18 13:57:46,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106322939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:46,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:46,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:46,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684628466] [2024-11-18 13:57:46,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:46,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:46,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:46,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:46,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,060 INFO L87 Difference]: Start difference. First operand 549 states and 899 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:46,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:46,109 INFO L93 Difference]: Finished difference Result 1081 states and 1777 transitions. [2024-11-18 13:57:46,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:46,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2024-11-18 13:57:46,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:46,114 INFO L225 Difference]: With dead ends: 1081 [2024-11-18 13:57:46,115 INFO L226 Difference]: Without dead ends: 549 [2024-11-18 13:57:46,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,118 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 2 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:46,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2654 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:46,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-18 13:57:46,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-18 13:57:46,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.6549295774647887) internal successors, (705), 443 states have internal predecessors, (705), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:46,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 898 transitions. [2024-11-18 13:57:46,145 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 898 transitions. Word has length 66 [2024-11-18 13:57:46,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:46,147 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 898 transitions. [2024-11-18 13:57:46,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:46,147 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 898 transitions. [2024-11-18 13:57:46,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 13:57:46,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:46,149 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:46,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 13:57:46,150 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:46,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:46,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2102479656, now seen corresponding path program 1 times [2024-11-18 13:57:46,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:46,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861857376] [2024-11-18 13:57:46,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:46,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:46,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:46,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:46,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861857376] [2024-11-18 13:57:46,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861857376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:46,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:46,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:46,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261643608] [2024-11-18 13:57:46,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:46,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:46,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:46,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:46,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,239 INFO L87 Difference]: Start difference. First operand 549 states and 898 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:46,291 INFO L93 Difference]: Finished difference Result 1081 states and 1776 transitions. [2024-11-18 13:57:46,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:46,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2024-11-18 13:57:46,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:46,295 INFO L225 Difference]: With dead ends: 1081 [2024-11-18 13:57:46,295 INFO L226 Difference]: Without dead ends: 549 [2024-11-18 13:57:46,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,299 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 1 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:46,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2654 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:46,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-18 13:57:46,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-18 13:57:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 426 states have (on average 1.6525821596244132) internal successors, (704), 443 states have internal predecessors, (704), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:46,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 897 transitions. [2024-11-18 13:57:46,317 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 897 transitions. Word has length 67 [2024-11-18 13:57:46,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:46,317 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 897 transitions. [2024-11-18 13:57:46,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:46,317 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 897 transitions. [2024-11-18 13:57:46,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 13:57:46,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:46,319 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:46,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 13:57:46,320 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:46,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:46,320 INFO L85 PathProgramCache]: Analyzing trace with hash 169835, now seen corresponding path program 1 times [2024-11-18 13:57:46,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:46,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525622299] [2024-11-18 13:57:46,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:46,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:46,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:46,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:46,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525622299] [2024-11-18 13:57:46,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525622299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:46,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:46,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 13:57:46,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668475199] [2024-11-18 13:57:46,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:46,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 13:57:46,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 13:57:46,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:46,481 INFO L87 Difference]: Start difference. First operand 549 states and 897 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:46,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:46,586 INFO L93 Difference]: Finished difference Result 1092 states and 1793 transitions. [2024-11-18 13:57:46,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 13:57:46,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2024-11-18 13:57:46,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:46,591 INFO L225 Difference]: With dead ends: 1092 [2024-11-18 13:57:46,591 INFO L226 Difference]: Without dead ends: 564 [2024-11-18 13:57:46,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:46,596 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 91 mSDsluCounter, 6087 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6969 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:46,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6969 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:46,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-18 13:57:46,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 562. [2024-11-18 13:57:46,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 436 states have (on average 1.6490825688073394) internal successors, (719), 455 states have internal predecessors, (719), 98 states have call successors, (98), 26 states have call predecessors, (98), 27 states have return successors, (100), 94 states have call predecessors, (100), 97 states have call successors, (100) [2024-11-18 13:57:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 917 transitions. [2024-11-18 13:57:46,620 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 917 transitions. Word has length 68 [2024-11-18 13:57:46,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:46,621 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 917 transitions. [2024-11-18 13:57:46,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:46,621 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 917 transitions. [2024-11-18 13:57:46,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 13:57:46,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:46,622 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:46,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 13:57:46,623 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:46,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:46,624 INFO L85 PathProgramCache]: Analyzing trace with hash 769339850, now seen corresponding path program 1 times [2024-11-18 13:57:46,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:46,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082146066] [2024-11-18 13:57:46,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:46,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:46,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:46,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082146066] [2024-11-18 13:57:46,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082146066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:46,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:46,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:46,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728786696] [2024-11-18 13:57:46,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:46,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:46,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:46,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:46,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,685 INFO L87 Difference]: Start difference. First operand 562 states and 917 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:46,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:46,731 INFO L93 Difference]: Finished difference Result 1099 states and 1804 transitions. [2024-11-18 13:57:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:57:46,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-18 13:57:46,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:46,736 INFO L225 Difference]: With dead ends: 1099 [2024-11-18 13:57:46,736 INFO L226 Difference]: Without dead ends: 558 [2024-11-18 13:57:46,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 13:57:46,739 INFO L432 NwaCegarLoop]: 885 mSDtfsCounter, 1 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:46,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2649 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-18 13:57:46,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2024-11-18 13:57:46,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 434 states have (on average 1.6497695852534562) internal successors, (716), 452 states have internal predecessors, (716), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (97), 93 states have call predecessors, (97), 96 states have call successors, (97) [2024-11-18 13:57:46,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 910 transitions. [2024-11-18 13:57:46,766 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 910 transitions. Word has length 68 [2024-11-18 13:57:46,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:46,766 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 910 transitions. [2024-11-18 13:57:46,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 910 transitions. [2024-11-18 13:57:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 13:57:46,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:46,767 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:46,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 13:57:46,768 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:46,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:46,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1884875238, now seen corresponding path program 1 times [2024-11-18 13:57:46,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:46,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654234142] [2024-11-18 13:57:46,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:46,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:46,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:46,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:46,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654234142] [2024-11-18 13:57:46,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654234142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:46,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:46,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:46,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283872639] [2024-11-18 13:57:46,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:46,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:46,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:46,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:46,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:46,861 INFO L87 Difference]: Start difference. First operand 558 states and 910 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:47,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:47,078 INFO L93 Difference]: Finished difference Result 1142 states and 1876 transitions. [2024-11-18 13:57:47,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 13:57:47,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-18 13:57:47,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:47,083 INFO L225 Difference]: With dead ends: 1142 [2024-11-18 13:57:47,083 INFO L226 Difference]: Without dead ends: 590 [2024-11-18 13:57:47,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:57:47,087 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 72 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:47,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4216 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 13:57:47,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-18 13:57:47,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 563. [2024-11-18 13:57:47,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 439 states have (on average 1.6355353075170842) internal successors, (718), 456 states have internal predecessors, (718), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:47,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 911 transitions. [2024-11-18 13:57:47,105 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 911 transitions. Word has length 69 [2024-11-18 13:57:47,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:47,105 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 911 transitions. [2024-11-18 13:57:47,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:47,106 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 911 transitions. [2024-11-18 13:57:47,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-18 13:57:47,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:47,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:47,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 13:57:47,106 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:47,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:47,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1602037038, now seen corresponding path program 1 times [2024-11-18 13:57:47,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:47,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818112872] [2024-11-18 13:57:47,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:47,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:47,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:47,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818112872] [2024-11-18 13:57:47,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818112872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:47,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:47,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:47,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649444798] [2024-11-18 13:57:47,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:47,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:47,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:47,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:47,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:47,205 INFO L87 Difference]: Start difference. First operand 563 states and 911 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:47,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:47,357 INFO L93 Difference]: Finished difference Result 1093 states and 1771 transitions. [2024-11-18 13:57:47,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:47,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2024-11-18 13:57:47,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:47,362 INFO L225 Difference]: With dead ends: 1093 [2024-11-18 13:57:47,362 INFO L226 Difference]: Without dead ends: 581 [2024-11-18 13:57:47,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:47,366 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 56 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:47,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4193 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:47,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-18 13:57:47,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 563. [2024-11-18 13:57:47,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 439 states have (on average 1.6264236902050113) internal successors, (714), 456 states have internal predecessors, (714), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:47,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 907 transitions. [2024-11-18 13:57:47,404 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 907 transitions. Word has length 70 [2024-11-18 13:57:47,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:47,404 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 907 transitions. [2024-11-18 13:57:47,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:47,405 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 907 transitions. [2024-11-18 13:57:47,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-18 13:57:47,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:47,408 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:47,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 13:57:47,408 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:47,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:47,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1886599905, now seen corresponding path program 1 times [2024-11-18 13:57:47,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:47,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340371053] [2024-11-18 13:57:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:47,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:47,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:47,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340371053] [2024-11-18 13:57:47,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340371053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:47,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:47,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:47,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025451803] [2024-11-18 13:57:47,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:47,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:47,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:47,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:47,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:47,541 INFO L87 Difference]: Start difference. First operand 563 states and 907 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:47,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:47,692 INFO L93 Difference]: Finished difference Result 1093 states and 1767 transitions. [2024-11-18 13:57:47,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:47,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-11-18 13:57:47,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:47,696 INFO L225 Difference]: With dead ends: 1093 [2024-11-18 13:57:47,696 INFO L226 Difference]: Without dead ends: 581 [2024-11-18 13:57:47,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:47,699 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 55 mSDsluCounter, 3341 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4188 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:47,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4188 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-18 13:57:47,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 563. [2024-11-18 13:57:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 439 states have (on average 1.6173120728929384) internal successors, (710), 456 states have internal predecessors, (710), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 903 transitions. [2024-11-18 13:57:47,714 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 903 transitions. Word has length 71 [2024-11-18 13:57:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:47,715 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 903 transitions. [2024-11-18 13:57:47,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:47,715 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 903 transitions. [2024-11-18 13:57:47,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-18 13:57:47,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:47,717 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:47,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 13:57:47,717 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:47,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:47,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2064383585, now seen corresponding path program 1 times [2024-11-18 13:57:47,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:47,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145275805] [2024-11-18 13:57:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:47,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:47,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:47,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145275805] [2024-11-18 13:57:47,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145275805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:47,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:47,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 13:57:47,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549928974] [2024-11-18 13:57:47,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:47,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 13:57:47,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:47,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 13:57:47,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:47,822 INFO L87 Difference]: Start difference. First operand 563 states and 903 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:47,897 INFO L93 Difference]: Finished difference Result 1084 states and 1749 transitions. [2024-11-18 13:57:47,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 13:57:47,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2024-11-18 13:57:47,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:47,902 INFO L225 Difference]: With dead ends: 1084 [2024-11-18 13:57:47,903 INFO L226 Difference]: Without dead ends: 551 [2024-11-18 13:57:47,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:57:47,905 INFO L432 NwaCegarLoop]: 873 mSDtfsCounter, 94 mSDsluCounter, 4269 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5142 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:47,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5142 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:47,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-18 13:57:47,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 542. [2024-11-18 13:57:47,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 418 states have (on average 1.6100478468899522) internal successors, (673), 435 states have internal predecessors, (673), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 866 transitions. [2024-11-18 13:57:47,920 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 866 transitions. Word has length 71 [2024-11-18 13:57:47,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:47,920 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 866 transitions. [2024-11-18 13:57:47,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:47,921 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 866 transitions. [2024-11-18 13:57:47,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 13:57:47,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:47,921 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:47,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 13:57:47,922 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:47,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:47,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1721036755, now seen corresponding path program 1 times [2024-11-18 13:57:47,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:47,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077766917] [2024-11-18 13:57:47,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:47,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:48,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:48,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077766917] [2024-11-18 13:57:48,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077766917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:48,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:48,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:48,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658020043] [2024-11-18 13:57:48,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:48,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:48,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:48,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:48,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:48,055 INFO L87 Difference]: Start difference. First operand 542 states and 866 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:48,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:48,137 INFO L93 Difference]: Finished difference Result 1063 states and 1712 transitions. [2024-11-18 13:57:48,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:48,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-11-18 13:57:48,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:48,141 INFO L225 Difference]: With dead ends: 1063 [2024-11-18 13:57:48,142 INFO L226 Difference]: Without dead ends: 551 [2024-11-18 13:57:48,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:48,144 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 39 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:48,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4193 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:48,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-18 13:57:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 542. [2024-11-18 13:57:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 418 states have (on average 1.6076555023923444) internal successors, (672), 435 states have internal predecessors, (672), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 865 transitions. [2024-11-18 13:57:48,159 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 865 transitions. Word has length 72 [2024-11-18 13:57:48,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:48,159 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 865 transitions. [2024-11-18 13:57:48,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:48,160 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 865 transitions. [2024-11-18 13:57:48,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-18 13:57:48,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:48,161 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:48,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 13:57:48,161 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:48,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:48,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1974855716, now seen corresponding path program 1 times [2024-11-18 13:57:48,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:48,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190046668] [2024-11-18 13:57:48,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:48,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:48,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:48,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190046668] [2024-11-18 13:57:48,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190046668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:48,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:48,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:48,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837234164] [2024-11-18 13:57:48,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:48,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:48,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:48,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:48,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:48,252 INFO L87 Difference]: Start difference. First operand 542 states and 865 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:48,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:48,332 INFO L93 Difference]: Finished difference Result 1063 states and 1711 transitions. [2024-11-18 13:57:48,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:48,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2024-11-18 13:57:48,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:48,336 INFO L225 Difference]: With dead ends: 1063 [2024-11-18 13:57:48,336 INFO L226 Difference]: Without dead ends: 551 [2024-11-18 13:57:48,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:48,339 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 38 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:48,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4193 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-18 13:57:48,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 542. [2024-11-18 13:57:48,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 418 states have (on average 1.605263157894737) internal successors, (671), 435 states have internal predecessors, (671), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:48,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 864 transitions. [2024-11-18 13:57:48,353 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 864 transitions. Word has length 73 [2024-11-18 13:57:48,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:48,353 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 864 transitions. [2024-11-18 13:57:48,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:48,353 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 864 transitions. [2024-11-18 13:57:48,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 13:57:48,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:48,354 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:48,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 13:57:48,355 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:48,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:48,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1339541112, now seen corresponding path program 1 times [2024-11-18 13:57:48,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:48,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137450800] [2024-11-18 13:57:48,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:48,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:48,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:48,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137450800] [2024-11-18 13:57:48,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137450800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:48,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:48,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 13:57:48,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772349565] [2024-11-18 13:57:48,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:48,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 13:57:48,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:48,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 13:57:48,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:48,498 INFO L87 Difference]: Start difference. First operand 542 states and 864 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:48,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:48,648 INFO L93 Difference]: Finished difference Result 1053 states and 1693 transitions. [2024-11-18 13:57:48,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 13:57:48,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-18 13:57:48,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:48,652 INFO L225 Difference]: With dead ends: 1053 [2024-11-18 13:57:48,652 INFO L226 Difference]: Without dead ends: 547 [2024-11-18 13:57:48,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:57:48,655 INFO L432 NwaCegarLoop]: 820 mSDtfsCounter, 21 mSDsluCounter, 6529 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7349 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:48,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7349 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-18 13:57:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 544. [2024-11-18 13:57:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 420 states have (on average 1.6) internal successors, (672), 437 states have internal predecessors, (672), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 13:57:48,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 865 transitions. [2024-11-18 13:57:48,670 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 865 transitions. Word has length 74 [2024-11-18 13:57:48,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:48,671 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 865 transitions. [2024-11-18 13:57:48,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:48,671 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 865 transitions. [2024-11-18 13:57:48,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-18 13:57:48,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:48,672 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:48,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 13:57:48,672 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:48,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:48,673 INFO L85 PathProgramCache]: Analyzing trace with hash 102707193, now seen corresponding path program 1 times [2024-11-18 13:57:48,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:48,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276254017] [2024-11-18 13:57:48,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:48,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:48,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:48,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276254017] [2024-11-18 13:57:48,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276254017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:48,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:48,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 13:57:48,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884165200] [2024-11-18 13:57:48,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:48,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:57:48,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:48,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:57:48,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 13:57:48,789 INFO L87 Difference]: Start difference. First operand 544 states and 865 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:48,882 INFO L93 Difference]: Finished difference Result 1533 states and 2489 transitions. [2024-11-18 13:57:48,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:57:48,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2024-11-18 13:57:48,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:48,889 INFO L225 Difference]: With dead ends: 1533 [2024-11-18 13:57:48,889 INFO L226 Difference]: Without dead ends: 1032 [2024-11-18 13:57:48,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 13:57:48,892 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 798 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:48,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1725 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:48,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2024-11-18 13:57:48,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 969. [2024-11-18 13:57:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 753 states have (on average 1.6201859229747675) internal successors, (1220), 779 states have internal predecessors, (1220), 170 states have call successors, (170), 47 states have call predecessors, (170), 45 states have return successors, (175), 157 states have call predecessors, (175), 168 states have call successors, (175) [2024-11-18 13:57:48,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1565 transitions. [2024-11-18 13:57:48,929 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1565 transitions. Word has length 75 [2024-11-18 13:57:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:48,929 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 1565 transitions. [2024-11-18 13:57:48,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1565 transitions. [2024-11-18 13:57:48,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 13:57:48,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:48,933 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:57:48,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 13:57:48,933 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:48,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:48,933 INFO L85 PathProgramCache]: Analyzing trace with hash -211247494, now seen corresponding path program 1 times [2024-11-18 13:57:48,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:48,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560630468] [2024-11-18 13:57:48,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:48,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 13:57:49,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:49,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560630468] [2024-11-18 13:57:49,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560630468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:49,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184770708] [2024-11-18 13:57:49,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:49,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:49,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:49,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:49,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 13:57:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:49,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:57:49,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 13:57:49,440 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:49,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184770708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:49,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:49,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-18 13:57:49,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974011240] [2024-11-18 13:57:49,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:49,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:57:49,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:49,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:57:49,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:49,442 INFO L87 Difference]: Start difference. First operand 969 states and 1565 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-18 13:57:49,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:49,513 INFO L93 Difference]: Finished difference Result 2809 states and 4643 transitions. [2024-11-18 13:57:49,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:57:49,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2024-11-18 13:57:49,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:49,525 INFO L225 Difference]: With dead ends: 2809 [2024-11-18 13:57:49,525 INFO L226 Difference]: Without dead ends: 1884 [2024-11-18 13:57:49,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:49,532 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 846 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:49,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1658 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2024-11-18 13:57:49,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1872. [2024-11-18 13:57:49,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1872 states, 1457 states have (on average 1.6314344543582704) internal successors, (2377), 1506 states have internal predecessors, (2377), 327 states have call successors, (327), 89 states have call predecessors, (327), 87 states have return successors, (366), 306 states have call predecessors, (366), 323 states have call successors, (366) [2024-11-18 13:57:49,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 3070 transitions. [2024-11-18 13:57:49,613 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 3070 transitions. Word has length 127 [2024-11-18 13:57:49,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:49,613 INFO L471 AbstractCegarLoop]: Abstraction has 1872 states and 3070 transitions. [2024-11-18 13:57:49,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-18 13:57:49,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 3070 transitions. [2024-11-18 13:57:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 13:57:49,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:49,617 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:57:49,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 13:57:49,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-18 13:57:49,821 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:49,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:49,822 INFO L85 PathProgramCache]: Analyzing trace with hash -486007108, now seen corresponding path program 1 times [2024-11-18 13:57:49,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:49,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96174851] [2024-11-18 13:57:49,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:49,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:50,058 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 13:57:50,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:50,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96174851] [2024-11-18 13:57:50,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96174851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:50,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216058533] [2024-11-18 13:57:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:50,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:50,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:50,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:50,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 13:57:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:50,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 13:57:50,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:50,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:50,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216058533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:50,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:50,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-18 13:57:50,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648600273] [2024-11-18 13:57:50,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:50,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:50,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:50,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:50,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:57:50,439 INFO L87 Difference]: Start difference. First operand 1872 states and 3070 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 13:57:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:50,914 INFO L93 Difference]: Finished difference Result 4745 states and 7816 transitions. [2024-11-18 13:57:50,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:50,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-11-18 13:57:50,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:50,932 INFO L225 Difference]: With dead ends: 4745 [2024-11-18 13:57:50,933 INFO L226 Difference]: Without dead ends: 2916 [2024-11-18 13:57:50,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:57:50,944 INFO L432 NwaCegarLoop]: 1129 mSDtfsCounter, 800 mSDsluCounter, 3600 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 4729 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:50,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 4729 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 13:57:50,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2024-11-18 13:57:51,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 2914. [2024-11-18 13:57:51,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2265 states have (on average 1.5977924944812363) internal successors, (3619), 2318 states have internal predecessors, (3619), 501 states have call successors, (501), 151 states have call predecessors, (501), 147 states have return successors, (632), 476 states have call predecessors, (632), 493 states have call successors, (632) [2024-11-18 13:57:51,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4752 transitions. [2024-11-18 13:57:51,077 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4752 transitions. Word has length 127 [2024-11-18 13:57:51,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:51,077 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 4752 transitions. [2024-11-18 13:57:51,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 13:57:51,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4752 transitions. [2024-11-18 13:57:51,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-18 13:57:51,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:51,081 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:57:51,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 13:57:51,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-18 13:57:51,282 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:51,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:51,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1145101519, now seen corresponding path program 1 times [2024-11-18 13:57:51,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:51,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904607678] [2024-11-18 13:57:51,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:51,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-18 13:57:51,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:51,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904607678] [2024-11-18 13:57:51,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904607678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:51,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970795376] [2024-11-18 13:57:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:51,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:51,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:51,400 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:51,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 13:57:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:51,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:51,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-18 13:57:51,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:51,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970795376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:51,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:51,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:51,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321809273] [2024-11-18 13:57:51,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:51,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:51,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:51,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:51,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:51,756 INFO L87 Difference]: Start difference. First operand 2914 states and 4752 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-11-18 13:57:52,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:52,334 INFO L93 Difference]: Finished difference Result 5849 states and 9867 transitions. [2024-11-18 13:57:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:52,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 128 [2024-11-18 13:57:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:52,351 INFO L225 Difference]: With dead ends: 5849 [2024-11-18 13:57:52,351 INFO L226 Difference]: Without dead ends: 2978 [2024-11-18 13:57:52,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:52,370 INFO L432 NwaCegarLoop]: 826 mSDtfsCounter, 801 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2098 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:52,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 2098 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:57:52,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2024-11-18 13:57:52,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2978. [2024-11-18 13:57:52,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2321 states have (on average 1.6006031882809133) internal successors, (3715), 2374 states have internal predecessors, (3715), 501 states have call successors, (501), 159 states have call predecessors, (501), 155 states have return successors, (640), 476 states have call predecessors, (640), 493 states have call successors, (640) [2024-11-18 13:57:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4856 transitions. [2024-11-18 13:57:52,475 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4856 transitions. Word has length 128 [2024-11-18 13:57:52,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:52,475 INFO L471 AbstractCegarLoop]: Abstraction has 2978 states and 4856 transitions. [2024-11-18 13:57:52,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-11-18 13:57:52,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4856 transitions. [2024-11-18 13:57:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-18 13:57:52,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:52,479 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:57:52,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 13:57:52,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-18 13:57:52,681 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:52,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:52,681 INFO L85 PathProgramCache]: Analyzing trace with hash 388925211, now seen corresponding path program 1 times [2024-11-18 13:57:52,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:52,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098339567] [2024-11-18 13:57:52,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:52,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-18 13:57:52,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:52,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098339567] [2024-11-18 13:57:52,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098339567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:52,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822865578] [2024-11-18 13:57:52,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:52,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:52,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:52,780 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:52,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 13:57:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:53,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:53,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:53,162 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-18 13:57:53,162 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:53,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822865578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:53,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:53,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:53,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483721298] [2024-11-18 13:57:53,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:53,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:53,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:53,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:53,164 INFO L87 Difference]: Start difference. First operand 2978 states and 4856 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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) [2024-11-18 13:57:53,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:53,642 INFO L93 Difference]: Finished difference Result 5977 states and 10051 transitions. [2024-11-18 13:57:53,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:53,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 131 [2024-11-18 13:57:53,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:53,659 INFO L225 Difference]: With dead ends: 5977 [2024-11-18 13:57:53,660 INFO L226 Difference]: Without dead ends: 3042 [2024-11-18 13:57:53,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:53,674 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 785 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:53,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 2095 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 13:57:53,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2024-11-18 13:57:53,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3042. [2024-11-18 13:57:53,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 2377 states have (on average 1.603281447202356) internal successors, (3811), 2430 states have internal predecessors, (3811), 501 states have call successors, (501), 167 states have call predecessors, (501), 163 states have return successors, (648), 476 states have call predecessors, (648), 493 states have call successors, (648) [2024-11-18 13:57:53,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4960 transitions. [2024-11-18 13:57:53,778 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4960 transitions. Word has length 131 [2024-11-18 13:57:53,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:53,778 INFO L471 AbstractCegarLoop]: Abstraction has 3042 states and 4960 transitions. [2024-11-18 13:57:53,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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) [2024-11-18 13:57:53,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4960 transitions. [2024-11-18 13:57:53,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 13:57:53,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:53,783 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:57:53,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 13:57:53,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:53,984 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:53,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash -2128821267, now seen corresponding path program 1 times [2024-11-18 13:57:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:53,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638669779] [2024-11-18 13:57:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:53,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:54,141 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-18 13:57:54,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638669779] [2024-11-18 13:57:54,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638669779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838620703] [2024-11-18 13:57:54,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:54,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:54,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:54,144 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:54,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 13:57:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:54,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:54,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:54,525 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-18 13:57:54,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:54,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838620703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:54,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:54,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:54,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468524605] [2024-11-18 13:57:54,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:54,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:54,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:54,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:54,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:54,528 INFO L87 Difference]: Start difference. First operand 3042 states and 4960 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-11-18 13:57:55,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:55,097 INFO L93 Difference]: Finished difference Result 6105 states and 10235 transitions. [2024-11-18 13:57:55,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:55,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 134 [2024-11-18 13:57:55,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:55,122 INFO L225 Difference]: With dead ends: 6105 [2024-11-18 13:57:55,122 INFO L226 Difference]: Without dead ends: 3106 [2024-11-18 13:57:55,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:55,136 INFO L432 NwaCegarLoop]: 820 mSDtfsCounter, 778 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:55,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 2092 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 13:57:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2024-11-18 13:57:55,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3106. [2024-11-18 13:57:55,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 2433 states have (on average 1.6058364159473901) internal successors, (3907), 2486 states have internal predecessors, (3907), 501 states have call successors, (501), 175 states have call predecessors, (501), 171 states have return successors, (656), 476 states have call predecessors, (656), 493 states have call successors, (656) [2024-11-18 13:57:55,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 5064 transitions. [2024-11-18 13:57:55,238 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 5064 transitions. Word has length 134 [2024-11-18 13:57:55,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:55,239 INFO L471 AbstractCegarLoop]: Abstraction has 3106 states and 5064 transitions. [2024-11-18 13:57:55,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-11-18 13:57:55,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 5064 transitions. [2024-11-18 13:57:55,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 13:57:55,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:55,242 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:57:55,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 13:57:55,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:55,443 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:55,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:55,444 INFO L85 PathProgramCache]: Analyzing trace with hash 385245007, now seen corresponding path program 1 times [2024-11-18 13:57:55,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:55,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007435296] [2024-11-18 13:57:55,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:55,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 13:57:55,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:55,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007435296] [2024-11-18 13:57:55,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007435296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:55,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433894618] [2024-11-18 13:57:55,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:55,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:55,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:55,566 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:55,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 13:57:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:55,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:55,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-18 13:57:55,899 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:55,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433894618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:55,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:55,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:55,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024266412] [2024-11-18 13:57:55,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:55,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:55,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:55,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:55,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:55,904 INFO L87 Difference]: Start difference. First operand 3106 states and 5064 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2024-11-18 13:57:56,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:56,383 INFO L93 Difference]: Finished difference Result 6233 states and 10419 transitions. [2024-11-18 13:57:56,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:56,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 137 [2024-11-18 13:57:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:56,400 INFO L225 Difference]: With dead ends: 6233 [2024-11-18 13:57:56,401 INFO L226 Difference]: Without dead ends: 3170 [2024-11-18 13:57:56,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:56,415 INFO L432 NwaCegarLoop]: 817 mSDtfsCounter, 783 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:56,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 2089 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 13:57:56,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3170 states. [2024-11-18 13:57:56,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3170 to 3170. [2024-11-18 13:57:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 2489 states have (on average 1.6082764162314183) internal successors, (4003), 2542 states have internal predecessors, (4003), 501 states have call successors, (501), 183 states have call predecessors, (501), 179 states have return successors, (664), 476 states have call predecessors, (664), 493 states have call successors, (664) [2024-11-18 13:57:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 5168 transitions. [2024-11-18 13:57:56,509 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 5168 transitions. Word has length 137 [2024-11-18 13:57:56,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:56,509 INFO L471 AbstractCegarLoop]: Abstraction has 3170 states and 5168 transitions. [2024-11-18 13:57:56,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2024-11-18 13:57:56,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 5168 transitions. [2024-11-18 13:57:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 13:57:56,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:56,514 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:57:56,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-18 13:57:56,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:56,715 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:56,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:56,716 INFO L85 PathProgramCache]: Analyzing trace with hash -323803479, now seen corresponding path program 1 times [2024-11-18 13:57:56,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:56,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100477512] [2024-11-18 13:57:56,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:56,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-18 13:57:56,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:56,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100477512] [2024-11-18 13:57:56,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100477512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:56,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415309255] [2024-11-18 13:57:56,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:56,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:56,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:56,984 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:56,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 13:57:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:57,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 13:57:57,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:57,334 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:57:57,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:57,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415309255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:57,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:57,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-18 13:57:57,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540334254] [2024-11-18 13:57:57,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:57,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:57,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:57,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:57,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-18 13:57:57,336 INFO L87 Difference]: Start difference. First operand 3170 states and 5168 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-18 13:57:58,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:58,871 INFO L93 Difference]: Finished difference Result 6561 states and 10709 transitions. [2024-11-18 13:57:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:58,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 140 [2024-11-18 13:57:58,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:58,887 INFO L225 Difference]: With dead ends: 6561 [2024-11-18 13:57:58,887 INFO L226 Difference]: Without dead ends: 3439 [2024-11-18 13:57:58,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:57:58,897 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 1744 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 2181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:58,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 1011 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 13:57:58,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2024-11-18 13:57:58,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3169. [2024-11-18 13:57:58,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 2383 states have (on average 1.5681913554343265) internal successors, (3737), 2474 states have internal predecessors, (3737), 606 states have call successors, (606), 169 states have call predecessors, (606), 179 states have return successors, (746), 577 states have call predecessors, (746), 598 states have call successors, (746) [2024-11-18 13:57:58,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 5089 transitions. [2024-11-18 13:57:59,000 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 5089 transitions. Word has length 140 [2024-11-18 13:57:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:59,001 INFO L471 AbstractCegarLoop]: Abstraction has 3169 states and 5089 transitions. [2024-11-18 13:57:59,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-18 13:57:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 5089 transitions. [2024-11-18 13:57:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 13:57:59,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:59,005 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:57:59,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-18 13:57:59,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:59,206 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:59,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:59,207 INFO L85 PathProgramCache]: Analyzing trace with hash 408163947, now seen corresponding path program 1 times [2024-11-18 13:57:59,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:59,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809396654] [2024-11-18 13:57:59,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:59,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:59,440 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-18 13:57:59,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:59,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809396654] [2024-11-18 13:57:59,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809396654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:59,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130646875] [2024-11-18 13:57:59,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:59,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:59,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:59,444 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:59,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-18 13:57:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:59,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-18 13:57:59,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:59,868 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 13:57:59,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:59,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130646875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:59,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:59,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-18 13:57:59,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813213302] [2024-11-18 13:57:59,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:59,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 13:57:59,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:59,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 13:57:59,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-18 13:57:59,871 INFO L87 Difference]: Start difference. First operand 3169 states and 5089 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-18 13:58:02,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:02,592 INFO L93 Difference]: Finished difference Result 7402 states and 11958 transitions. [2024-11-18 13:58:02,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 13:58:02,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 140 [2024-11-18 13:58:02,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:02,612 INFO L225 Difference]: With dead ends: 7402 [2024-11-18 13:58:02,613 INFO L226 Difference]: Without dead ends: 4278 [2024-11-18 13:58:02,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-11-18 13:58:02,622 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 2357 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 4868 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 5409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 4868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:02,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2451 Valid, 2193 Invalid, 5409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 4868 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 13:58:02,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2024-11-18 13:58:02,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 3695. [2024-11-18 13:58:02,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2775 states have (on average 1.5672072072072072) internal successors, (4349), 2888 states have internal predecessors, (4349), 696 states have call successors, (696), 191 states have call predecessors, (696), 223 states have return successors, (891), 667 states have call predecessors, (891), 688 states have call successors, (891) [2024-11-18 13:58:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5936 transitions. [2024-11-18 13:58:02,761 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5936 transitions. Word has length 140 [2024-11-18 13:58:02,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:02,762 INFO L471 AbstractCegarLoop]: Abstraction has 3695 states and 5936 transitions. [2024-11-18 13:58:02,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-18 13:58:02,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5936 transitions. [2024-11-18 13:58:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 13:58:02,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:02,766 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:02,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-18 13:58:02,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-18 13:58:02,967 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:02,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:02,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1808790549, now seen corresponding path program 1 times [2024-11-18 13:58:02,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:02,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595335488] [2024-11-18 13:58:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:02,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 13:58:03,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:03,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595335488] [2024-11-18 13:58:03,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595335488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:03,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811592563] [2024-11-18 13:58:03,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:03,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:03,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:03,207 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:03,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-18 13:58:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:03,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-18 13:58:03,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:58:03,540 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:03,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811592563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:03,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:03,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-18 13:58:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422560498] [2024-11-18 13:58:03,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:03,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 13:58:03,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:03,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 13:58:03,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:58:03,542 INFO L87 Difference]: Start difference. First operand 3695 states and 5936 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-18 13:58:06,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:06,442 INFO L93 Difference]: Finished difference Result 10104 states and 16543 transitions. [2024-11-18 13:58:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 13:58:06,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2024-11-18 13:58:06,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:06,465 INFO L225 Difference]: With dead ends: 10104 [2024-11-18 13:58:06,466 INFO L226 Difference]: Without dead ends: 6454 [2024-11-18 13:58:06,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-18 13:58:06,477 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 2693 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 5887 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2791 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 6565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 5887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:06,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2791 Valid, 2151 Invalid, 6565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 5887 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 13:58:06,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2024-11-18 13:58:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 5832. [2024-11-18 13:58:06,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 4383 states have (on average 1.5651380333105178) internal successors, (6860), 4569 states have internal predecessors, (6860), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 364 states have return successors, (1508), 1048 states have call predecessors, (1508), 1076 states have call successors, (1508) [2024-11-18 13:58:06,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 9452 transitions. [2024-11-18 13:58:06,682 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 9452 transitions. Word has length 142 [2024-11-18 13:58:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:06,682 INFO L471 AbstractCegarLoop]: Abstraction has 5832 states and 9452 transitions. [2024-11-18 13:58:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-18 13:58:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 9452 transitions. [2024-11-18 13:58:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-18 13:58:06,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:06,686 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:06,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:06,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-18 13:58:06,887 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:06,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:06,887 INFO L85 PathProgramCache]: Analyzing trace with hash 2003295559, now seen corresponding path program 1 times [2024-11-18 13:58:06,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:06,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326090136] [2024-11-18 13:58:06,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:06,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:07,160 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 13:58:07,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:07,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326090136] [2024-11-18 13:58:07,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326090136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:07,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562794873] [2024-11-18 13:58:07,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:07,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:07,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:07,163 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:07,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-18 13:58:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:07,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 13:58:07,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:07,444 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:58:07,444 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:07,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562794873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:07,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:07,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-18 13:58:07,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687084617] [2024-11-18 13:58:07,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:07,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:58:07,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:07,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:58:07,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:07,447 INFO L87 Difference]: Start difference. First operand 5832 states and 9452 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-18 13:58:07,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:07,763 INFO L93 Difference]: Finished difference Result 13773 states and 22608 transitions. [2024-11-18 13:58:07,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:58:07,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2024-11-18 13:58:07,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:07,803 INFO L225 Difference]: With dead ends: 13773 [2024-11-18 13:58:07,803 INFO L226 Difference]: Without dead ends: 7990 [2024-11-18 13:58:07,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:07,826 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 808 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:07,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 2403 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:07,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7990 states. [2024-11-18 13:58:08,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7990 to 5820. [2024-11-18 13:58:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5820 states, 4375 states have (on average 1.564342857142857) internal successors, (6844), 4557 states have internal predecessors, (6844), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 360 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2024-11-18 13:58:08,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5820 states to 5820 states and 9400 transitions. [2024-11-18 13:58:08,128 INFO L78 Accepts]: Start accepts. Automaton has 5820 states and 9400 transitions. Word has length 147 [2024-11-18 13:58:08,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:08,130 INFO L471 AbstractCegarLoop]: Abstraction has 5820 states and 9400 transitions. [2024-11-18 13:58:08,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-18 13:58:08,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5820 states and 9400 transitions. [2024-11-18 13:58:08,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-18 13:58:08,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:08,133 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:08,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:08,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-18 13:58:08,335 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:08,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:08,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1632140215, now seen corresponding path program 1 times [2024-11-18 13:58:08,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:08,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152352751] [2024-11-18 13:58:08,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:08,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 13:58:08,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:08,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152352751] [2024-11-18 13:58:08,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152352751] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:08,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483273417] [2024-11-18 13:58:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:08,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:08,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:08,586 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:08,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-18 13:58:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:08,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 13:58:08,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:58:08,888 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:08,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483273417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:08,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:08,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-18 13:58:08,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149442672] [2024-11-18 13:58:08,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:08,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:58:08,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:08,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:58:08,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-18 13:58:08,890 INFO L87 Difference]: Start difference. First operand 5820 states and 9400 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-18 13:58:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:09,180 INFO L93 Difference]: Finished difference Result 5822 states and 9401 transitions. [2024-11-18 13:58:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:58:09,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2024-11-18 13:58:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:09,201 INFO L225 Difference]: With dead ends: 5822 [2024-11-18 13:58:09,201 INFO L226 Difference]: Without dead ends: 5820 [2024-11-18 13:58:09,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-18 13:58:09,203 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 354 mSDsluCounter, 3313 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:09,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 4243 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:09,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5820 states. [2024-11-18 13:58:09,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5820 to 5820. [2024-11-18 13:58:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5820 states, 4375 states have (on average 1.5577142857142856) internal successors, (6815), 4557 states have internal predecessors, (6815), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 360 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2024-11-18 13:58:09,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5820 states to 5820 states and 9371 transitions. [2024-11-18 13:58:09,395 INFO L78 Accepts]: Start accepts. Automaton has 5820 states and 9371 transitions. Word has length 147 [2024-11-18 13:58:09,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:09,395 INFO L471 AbstractCegarLoop]: Abstraction has 5820 states and 9371 transitions. [2024-11-18 13:58:09,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-18 13:58:09,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5820 states and 9371 transitions. [2024-11-18 13:58:09,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-18 13:58:09,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:09,399 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:09,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-18 13:58:09,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-18 13:58:09,600 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:09,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1721447028, now seen corresponding path program 1 times [2024-11-18 13:58:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193759458] [2024-11-18 13:58:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-18 13:58:09,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:09,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193759458] [2024-11-18 13:58:09,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193759458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:09,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867239209] [2024-11-18 13:58:09,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:09,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:09,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:09,819 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:09,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-18 13:58:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:10,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:10,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 13:58:10,082 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:10,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867239209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:10,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:10,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:10,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533099690] [2024-11-18 13:58:10,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:10,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:10,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:10,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:10,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:10,085 INFO L87 Difference]: Start difference. First operand 5820 states and 9371 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:10,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:10,385 INFO L93 Difference]: Finished difference Result 11865 states and 19352 transitions. [2024-11-18 13:58:10,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:10,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 170 [2024-11-18 13:58:10,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:10,416 INFO L225 Difference]: With dead ends: 11865 [2024-11-18 13:58:10,416 INFO L226 Difference]: Without dead ends: 6090 [2024-11-18 13:58:10,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:10,436 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 144 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:10,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2329 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:10,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6090 states. [2024-11-18 13:58:10,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6090 to 6054. [2024-11-18 13:58:10,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6054 states, 4603 states have (on average 1.575711492504888) internal successors, (7253), 4785 states have internal predecessors, (7253), 1084 states have call successors, (1084), 297 states have call predecessors, (1084), 366 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2024-11-18 13:58:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 9809 transitions. [2024-11-18 13:58:10,646 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 9809 transitions. Word has length 170 [2024-11-18 13:58:10,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:10,646 INFO L471 AbstractCegarLoop]: Abstraction has 6054 states and 9809 transitions. [2024-11-18 13:58:10,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 9809 transitions. [2024-11-18 13:58:10,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-18 13:58:10,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:10,651 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:10,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-18 13:58:10,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-18 13:58:10,851 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:10,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:10,852 INFO L85 PathProgramCache]: Analyzing trace with hash -937967674, now seen corresponding path program 1 times [2024-11-18 13:58:10,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:10,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936439949] [2024-11-18 13:58:10,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:10,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:11,164 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-18 13:58:11,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:11,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936439949] [2024-11-18 13:58:11,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936439949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:11,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871365690] [2024-11-18 13:58:11,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:11,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:11,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:11,167 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:11,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-18 13:58:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:11,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:11,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:11,470 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 13:58:11,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:11,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871365690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:11,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:11,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:11,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418999] [2024-11-18 13:58:11,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:11,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:11,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:11,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:11,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:11,471 INFO L87 Difference]: Start difference. First operand 6054 states and 9809 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:11,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:11,750 INFO L93 Difference]: Finished difference Result 12351 states and 20228 transitions. [2024-11-18 13:58:11,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:11,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 175 [2024-11-18 13:58:11,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:11,781 INFO L225 Difference]: With dead ends: 12351 [2024-11-18 13:58:11,781 INFO L226 Difference]: Without dead ends: 6342 [2024-11-18 13:58:11,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:11,801 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 142 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:11,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2326 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:11,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6342 states. [2024-11-18 13:58:12,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6342 to 6288. [2024-11-18 13:58:12,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6288 states, 4831 states have (on average 1.5920099358310908) internal successors, (7691), 5013 states have internal predecessors, (7691), 1084 states have call successors, (1084), 303 states have call predecessors, (1084), 372 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2024-11-18 13:58:12,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6288 states to 6288 states and 10247 transitions. [2024-11-18 13:58:12,077 INFO L78 Accepts]: Start accepts. Automaton has 6288 states and 10247 transitions. Word has length 175 [2024-11-18 13:58:12,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:12,077 INFO L471 AbstractCegarLoop]: Abstraction has 6288 states and 10247 transitions. [2024-11-18 13:58:12,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:12,077 INFO L276 IsEmpty]: Start isEmpty. Operand 6288 states and 10247 transitions. [2024-11-18 13:58:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 13:58:12,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:12,082 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:12,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-18 13:58:12,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-18 13:58:12,283 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:12,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:12,283 INFO L85 PathProgramCache]: Analyzing trace with hash -358200330, now seen corresponding path program 1 times [2024-11-18 13:58:12,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:12,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643905949] [2024-11-18 13:58:12,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:12,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-18 13:58:12,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:12,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643905949] [2024-11-18 13:58:12,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643905949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:12,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063289805] [2024-11-18 13:58:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:12,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:12,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:12,487 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:12,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-18 13:58:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:12,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:12,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-18 13:58:12,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:12,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063289805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:12,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:12,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:12,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852402195] [2024-11-18 13:58:12,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:12,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:12,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:12,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:12,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:12,741 INFO L87 Difference]: Start difference. First operand 6288 states and 10247 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:13,015 INFO L93 Difference]: Finished difference Result 12837 states and 21104 transitions. [2024-11-18 13:58:13,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:13,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 179 [2024-11-18 13:58:13,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:13,048 INFO L225 Difference]: With dead ends: 12837 [2024-11-18 13:58:13,048 INFO L226 Difference]: Without dead ends: 6594 [2024-11-18 13:58:13,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:13,070 INFO L432 NwaCegarLoop]: 782 mSDtfsCounter, 140 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:13,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2323 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:13,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6594 states. [2024-11-18 13:58:13,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6594 to 6522. [2024-11-18 13:58:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 5059 states have (on average 1.6068392963036173) internal successors, (8129), 5241 states have internal predecessors, (8129), 1084 states have call successors, (1084), 309 states have call predecessors, (1084), 378 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2024-11-18 13:58:13,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 10685 transitions. [2024-11-18 13:58:13,351 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 10685 transitions. Word has length 179 [2024-11-18 13:58:13,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:13,352 INFO L471 AbstractCegarLoop]: Abstraction has 6522 states and 10685 transitions. [2024-11-18 13:58:13,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:13,352 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 10685 transitions. [2024-11-18 13:58:13,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-18 13:58:13,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:13,357 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:13,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-18 13:58:13,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:13,558 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:13,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:13,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1233366996, now seen corresponding path program 1 times [2024-11-18 13:58:13,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:13,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442938235] [2024-11-18 13:58:13,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:13,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:13,761 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-18 13:58:13,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:13,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442938235] [2024-11-18 13:58:13,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442938235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:13,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206323546] [2024-11-18 13:58:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:13,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:13,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:13,763 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:13,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-18 13:58:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:13,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:13,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 13:58:14,018 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:14,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206323546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:14,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:14,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354063552] [2024-11-18 13:58:14,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:14,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:14,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:14,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:14,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:14,020 INFO L87 Difference]: Start difference. First operand 6522 states and 10685 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:14,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:14,331 INFO L93 Difference]: Finished difference Result 13323 states and 21980 transitions. [2024-11-18 13:58:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:14,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2024-11-18 13:58:14,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:14,359 INFO L225 Difference]: With dead ends: 13323 [2024-11-18 13:58:14,359 INFO L226 Difference]: Without dead ends: 6846 [2024-11-18 13:58:14,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:14,377 INFO L432 NwaCegarLoop]: 779 mSDtfsCounter, 138 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:14,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2313 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:14,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6846 states. [2024-11-18 13:58:14,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6846 to 6756. [2024-11-18 13:58:14,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6756 states, 5287 states have (on average 1.62038963495366) internal successors, (8567), 5469 states have internal predecessors, (8567), 1084 states have call successors, (1084), 315 states have call predecessors, (1084), 384 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2024-11-18 13:58:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6756 states to 6756 states and 11123 transitions. [2024-11-18 13:58:14,598 INFO L78 Accepts]: Start accepts. Automaton has 6756 states and 11123 transitions. Word has length 182 [2024-11-18 13:58:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:14,599 INFO L471 AbstractCegarLoop]: Abstraction has 6756 states and 11123 transitions. [2024-11-18 13:58:14,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 6756 states and 11123 transitions. [2024-11-18 13:58:14,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-18 13:58:14,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:14,605 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:14,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-18 13:58:14,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:14,806 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:14,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:14,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1820814082, now seen corresponding path program 1 times [2024-11-18 13:58:14,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:14,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737818511] [2024-11-18 13:58:14,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:14,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-18 13:58:14,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:14,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737818511] [2024-11-18 13:58:14,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737818511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:14,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248948164] [2024-11-18 13:58:14,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:14,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:14,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:14,987 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:14,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-18 13:58:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:15,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-18 13:58:15,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-18 13:58:15,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:15,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248948164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:15,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:15,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2024-11-18 13:58:15,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449103218] [2024-11-18 13:58:15,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:15,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 13:58:15,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:15,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 13:58:15,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:58:15,350 INFO L87 Difference]: Start difference. First operand 6756 states and 11123 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-18 13:58:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:17,950 INFO L93 Difference]: Finished difference Result 21042 states and 35207 transitions. [2024-11-18 13:58:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 13:58:17,950 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 184 [2024-11-18 13:58:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:18,020 INFO L225 Difference]: With dead ends: 21042 [2024-11-18 13:58:18,021 INFO L226 Difference]: Without dead ends: 11014 [2024-11-18 13:58:18,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-11-18 13:58:18,064 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 1890 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 3939 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 4394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 3939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:18,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 2503 Invalid, 4394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 3939 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 13:58:18,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11014 states. [2024-11-18 13:58:18,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11014 to 10905. [2024-11-18 13:58:18,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10905 states, 8425 states have (on average 1.6167359050445105) internal successors, (13621), 8780 states have internal predecessors, (13621), 1815 states have call successors, (1815), 497 states have call predecessors, (1815), 664 states have return successors, (2537), 1776 states have call predecessors, (2537), 1807 states have call successors, (2537) [2024-11-18 13:58:18,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10905 states to 10905 states and 17973 transitions. [2024-11-18 13:58:18,562 INFO L78 Accepts]: Start accepts. Automaton has 10905 states and 17973 transitions. Word has length 184 [2024-11-18 13:58:18,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:18,562 INFO L471 AbstractCegarLoop]: Abstraction has 10905 states and 17973 transitions. [2024-11-18 13:58:18,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-18 13:58:18,562 INFO L276 IsEmpty]: Start isEmpty. Operand 10905 states and 17973 transitions. [2024-11-18 13:58:18,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-18 13:58:18,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:18,572 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:18,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-18 13:58:18,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:18,774 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:18,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:18,774 INFO L85 PathProgramCache]: Analyzing trace with hash 519536473, now seen corresponding path program 1 times [2024-11-18 13:58:18,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:18,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419739694] [2024-11-18 13:58:18,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:18,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-18 13:58:18,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:18,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419739694] [2024-11-18 13:58:18,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419739694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:18,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:58:18,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 13:58:18,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205877473] [2024-11-18 13:58:18,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:18,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 13:58:18,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:18,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 13:58:18,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:58:18,891 INFO L87 Difference]: Start difference. First operand 10905 states and 17973 transitions. Second operand has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 13:58:19,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:19,390 INFO L93 Difference]: Finished difference Result 21507 states and 35457 transitions. [2024-11-18 13:58:19,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 13:58:19,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 187 [2024-11-18 13:58:19,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:19,436 INFO L225 Difference]: With dead ends: 21507 [2024-11-18 13:58:19,437 INFO L226 Difference]: Without dead ends: 10287 [2024-11-18 13:58:19,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:19,467 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 30 mSDsluCounter, 4896 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 5717 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:19,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 5717 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10287 states. [2024-11-18 13:58:19,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10287 to 10263. [2024-11-18 13:58:19,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10263 states, 8018 states have (on average 1.629583437266151) internal successors, (13066), 8348 states have internal predecessors, (13066), 1630 states have call successors, (1630), 473 states have call predecessors, (1630), 614 states have return successors, (2185), 1570 states have call predecessors, (2185), 1622 states have call successors, (2185) [2024-11-18 13:58:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10263 states to 10263 states and 16881 transitions. [2024-11-18 13:58:19,846 INFO L78 Accepts]: Start accepts. Automaton has 10263 states and 16881 transitions. Word has length 187 [2024-11-18 13:58:19,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:19,846 INFO L471 AbstractCegarLoop]: Abstraction has 10263 states and 16881 transitions. [2024-11-18 13:58:19,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 13:58:19,846 INFO L276 IsEmpty]: Start isEmpty. Operand 10263 states and 16881 transitions. [2024-11-18 13:58:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-18 13:58:19,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:19,861 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:58:19,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 13:58:19,862 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:19,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:19,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1732229948, now seen corresponding path program 1 times [2024-11-18 13:58:19,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:19,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609089089] [2024-11-18 13:58:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:19,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:20,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 27 proven. 146 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:20,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:20,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609089089] [2024-11-18 13:58:20,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609089089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:20,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069262246] [2024-11-18 13:58:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:20,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:20,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:20,410 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:20,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-18 13:58:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:20,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 4030 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 13:58:20,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:20,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2024-11-18 13:58:20,893 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:20,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069262246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:20,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:20,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-18 13:58:20,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214033702] [2024-11-18 13:58:20,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:20,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:58:20,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:20,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:58:20,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:20,895 INFO L87 Difference]: Start difference. First operand 10263 states and 16881 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-18 13:58:21,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:21,422 INFO L93 Difference]: Finished difference Result 21023 states and 35007 transitions. [2024-11-18 13:58:21,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:58:21,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 531 [2024-11-18 13:58:21,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:21,498 INFO L225 Difference]: With dead ends: 21023 [2024-11-18 13:58:21,498 INFO L226 Difference]: Without dead ends: 15643 [2024-11-18 13:58:21,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:21,523 INFO L432 NwaCegarLoop]: 855 mSDtfsCounter, 839 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:21,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1660 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:21,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15643 states. [2024-11-18 13:58:22,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15643 to 15641. [2024-11-18 13:58:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15641 states, 12168 states have (on average 1.6288625904010519) internal successors, (19820), 12697 states have internal predecessors, (19820), 2542 states have call successors, (2542), 718 states have call predecessors, (2542), 930 states have return successors, (3576), 2483 states have call predecessors, (3576), 2530 states have call successors, (3576) [2024-11-18 13:58:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15641 states to 15641 states and 25938 transitions. [2024-11-18 13:58:22,512 INFO L78 Accepts]: Start accepts. Automaton has 15641 states and 25938 transitions. Word has length 531 [2024-11-18 13:58:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:22,513 INFO L471 AbstractCegarLoop]: Abstraction has 15641 states and 25938 transitions. [2024-11-18 13:58:22,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-18 13:58:22,513 INFO L276 IsEmpty]: Start isEmpty. Operand 15641 states and 25938 transitions. [2024-11-18 13:58:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-18 13:58:22,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:22,530 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:58:22,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-18 13:58:22,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:22,730 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:22,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:22,731 INFO L85 PathProgramCache]: Analyzing trace with hash -153880533, now seen corresponding path program 1 times [2024-11-18 13:58:22,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:22,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32902099] [2024-11-18 13:58:22,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:22,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 27 proven. 146 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:23,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:23,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32902099] [2024-11-18 13:58:23,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32902099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:23,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146793479] [2024-11-18 13:58:23,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:23,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:23,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:23,306 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:23,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-18 13:58:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:23,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 4031 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:23,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2024-11-18 13:58:23,806 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:23,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146793479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:23,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:23,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:23,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707871564] [2024-11-18 13:58:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:23,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:23,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:23,809 INFO L87 Difference]: Start difference. First operand 15641 states and 25938 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:24,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:24,330 INFO L93 Difference]: Finished difference Result 31375 states and 52556 transitions. [2024-11-18 13:58:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:24,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 532 [2024-11-18 13:58:24,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:24,401 INFO L225 Difference]: With dead ends: 31375 [2024-11-18 13:58:24,401 INFO L226 Difference]: Without dead ends: 15776 [2024-11-18 13:58:24,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:24,453 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 22 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:24,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2448 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:24,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15776 states. [2024-11-18 13:58:25,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15776 to 15776. [2024-11-18 13:58:25,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15776 states, 12288 states have (on average 1.6300455729166667) internal successors, (20030), 12817 states have internal predecessors, (20030), 2542 states have call successors, (2542), 733 states have call predecessors, (2542), 945 states have return successors, (3576), 2483 states have call predecessors, (3576), 2530 states have call successors, (3576) [2024-11-18 13:58:25,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15776 states to 15776 states and 26148 transitions. [2024-11-18 13:58:25,135 INFO L78 Accepts]: Start accepts. Automaton has 15776 states and 26148 transitions. Word has length 532 [2024-11-18 13:58:25,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:25,136 INFO L471 AbstractCegarLoop]: Abstraction has 15776 states and 26148 transitions. [2024-11-18 13:58:25,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:25,136 INFO L276 IsEmpty]: Start isEmpty. Operand 15776 states and 26148 transitions. [2024-11-18 13:58:25,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-18 13:58:25,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:25,147 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:58:25,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-18 13:58:25,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:25,348 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:25,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash -42508737, now seen corresponding path program 1 times [2024-11-18 13:58:25,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:25,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721766567] [2024-11-18 13:58:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:25,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 27 proven. 146 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:25,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:25,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721766567] [2024-11-18 13:58:25,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721766567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:25,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739786137] [2024-11-18 13:58:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:25,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:25,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:25,818 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:25,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-18 13:58:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:26,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 4032 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:26,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2024-11-18 13:58:26,311 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:26,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739786137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:26,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:26,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:26,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033517722] [2024-11-18 13:58:26,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:26,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:26,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:26,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:26,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:26,313 INFO L87 Difference]: Start difference. First operand 15776 states and 26148 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:26,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:26,985 INFO L93 Difference]: Finished difference Result 31645 states and 52916 transitions. [2024-11-18 13:58:26,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:26,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 533 [2024-11-18 13:58:26,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:27,068 INFO L225 Difference]: With dead ends: 31645 [2024-11-18 13:58:27,068 INFO L226 Difference]: Without dead ends: 15911 [2024-11-18 13:58:27,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:27,121 INFO L432 NwaCegarLoop]: 822 mSDtfsCounter, 20 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:27,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2442 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:27,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15911 states. [2024-11-18 13:58:27,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15911 to 15911. [2024-11-18 13:58:27,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15911 states, 12408 states have (on average 1.6312056737588652) internal successors, (20240), 12937 states have internal predecessors, (20240), 2542 states have call successors, (2542), 748 states have call predecessors, (2542), 960 states have return successors, (3576), 2483 states have call predecessors, (3576), 2530 states have call successors, (3576) [2024-11-18 13:58:27,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15911 states to 15911 states and 26358 transitions. [2024-11-18 13:58:27,691 INFO L78 Accepts]: Start accepts. Automaton has 15911 states and 26358 transitions. Word has length 533 [2024-11-18 13:58:27,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:27,692 INFO L471 AbstractCegarLoop]: Abstraction has 15911 states and 26358 transitions. [2024-11-18 13:58:27,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:27,692 INFO L276 IsEmpty]: Start isEmpty. Operand 15911 states and 26358 transitions. [2024-11-18 13:58:27,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-18 13:58:27,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:27,703 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:58:27,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:27,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:27,904 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:27,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:27,904 INFO L85 PathProgramCache]: Analyzing trace with hash 48001731, now seen corresponding path program 1 times [2024-11-18 13:58:27,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:27,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112624674] [2024-11-18 13:58:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:27,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:28,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 27 proven. 146 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:28,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:28,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112624674] [2024-11-18 13:58:28,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112624674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:28,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469104554] [2024-11-18 13:58:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:28,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:28,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:28,466 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:28,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-18 13:58:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:28,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 4032 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 13:58:29,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:29,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 739 proven. 260 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-18 13:58:29,278 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 13:58:29,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 133 proven. 36 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2024-11-18 13:58:29,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469104554] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 13:58:29,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 13:58:29,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 5] total 16 [2024-11-18 13:58:29,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852083285] [2024-11-18 13:58:29,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 13:58:29,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 13:58:29,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:29,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 13:58:29,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-18 13:58:29,862 INFO L87 Difference]: Start difference. First operand 15911 states and 26358 transitions. Second operand has 16 states, 16 states have (on average 27.25) internal successors, (436), 14 states have internal predecessors, (436), 11 states have call successors, (106), 7 states have call predecessors, (106), 10 states have return successors, (106), 13 states have call predecessors, (106), 11 states have call successors, (106) [2024-11-18 13:58:45,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:45,432 INFO L93 Difference]: Finished difference Result 97488 states and 173528 transitions. [2024-11-18 13:58:45,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-18 13:58:45,433 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 27.25) internal successors, (436), 14 states have internal predecessors, (436), 11 states have call successors, (106), 7 states have call predecessors, (106), 10 states have return successors, (106), 13 states have call predecessors, (106), 11 states have call successors, (106) Word has length 533 [2024-11-18 13:58:45,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:45,957 INFO L225 Difference]: With dead ends: 97488 [2024-11-18 13:58:45,958 INFO L226 Difference]: Without dead ends: 81617 [2024-11-18 13:58:46,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1153 GetRequests, 1087 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1274 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=3768, Unknown=0, NotChecked=0, Total=4422 [2024-11-18 13:58:46,136 INFO L432 NwaCegarLoop]: 1449 mSDtfsCounter, 10928 mSDsluCounter, 9298 mSDsCounter, 0 mSdLazyCounter, 29725 mSolverCounterSat, 4513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10928 SdHoareTripleChecker+Valid, 10747 SdHoareTripleChecker+Invalid, 34238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4513 IncrementalHoareTripleChecker+Valid, 29725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:46,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10928 Valid, 10747 Invalid, 34238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4513 Valid, 29725 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-18 13:58:46,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81617 states. [2024-11-18 13:58:50,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81617 to 68609. [2024-11-18 13:58:50,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68609 states, 51454 states have (on average 1.6086407276402224) internal successors, (82771), 54536 states have internal predecessors, (82771), 12957 states have call successors, (12957), 2744 states have call predecessors, (12957), 4197 states have return successors, (21663), 13164 states have call predecessors, (21663), 12937 states have call successors, (21663) [2024-11-18 13:58:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68609 states to 68609 states and 117391 transitions. [2024-11-18 13:58:50,796 INFO L78 Accepts]: Start accepts. Automaton has 68609 states and 117391 transitions. Word has length 533 [2024-11-18 13:58:50,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:50,797 INFO L471 AbstractCegarLoop]: Abstraction has 68609 states and 117391 transitions. [2024-11-18 13:58:50,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 27.25) internal successors, (436), 14 states have internal predecessors, (436), 11 states have call successors, (106), 7 states have call predecessors, (106), 10 states have return successors, (106), 13 states have call predecessors, (106), 11 states have call successors, (106) [2024-11-18 13:58:50,797 INFO L276 IsEmpty]: Start isEmpty. Operand 68609 states and 117391 transitions. [2024-11-18 13:58:50,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2024-11-18 13:58:50,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:50,812 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 13:58:50,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-18 13:58:51,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-18 13:58:51,013 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:51,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:51,014 INFO L85 PathProgramCache]: Analyzing trace with hash 928255912, now seen corresponding path program 1 times [2024-11-18 13:58:51,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:51,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123719983] [2024-11-18 13:58:51,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:51,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 29 proven. 138 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked. [2024-11-18 13:58:51,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:51,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123719983] [2024-11-18 13:58:51,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123719983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:51,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039030966] [2024-11-18 13:58:51,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:51,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:51,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:51,410 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:51,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-18 13:58:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:51,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 4090 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 13:58:51,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:52,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 677 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2024-11-18 13:58:52,192 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:52,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039030966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:52,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:52,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-18 13:58:52,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36150756] [2024-11-18 13:58:52,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:52,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:58:52,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:52,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:58:52,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:52,198 INFO L87 Difference]: Start difference. First operand 68609 states and 117391 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-18 13:58:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:59,953 INFO L93 Difference]: Finished difference Result 183197 states and 324769 transitions. [2024-11-18 13:58:59,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:58:59,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 552 [2024-11-18 13:58:59,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:59:01,086 INFO L225 Difference]: With dead ends: 183197 [2024-11-18 13:59:01,086 INFO L226 Difference]: Without dead ends: 125903 [2024-11-18 13:59:01,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:59:01,682 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 808 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:59:01,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 2419 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]