./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:35:38,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:35:38,198 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:35:38,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:35:38,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:35:38,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:35:38,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:35:38,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:35:38,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:35:38,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:35:38,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:35:38,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:35:38,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:35:38,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:35:38,242 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:35:38,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:35:38,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:35:38,243 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:35:38,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:35:38,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:35:38,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:35:38,247 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:35:38,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:35:38,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:35:38,248 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:35:38,248 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:35:38,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:35:38,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:35:38,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:35:38,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:35:38,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:35:38,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:35:38,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:35:38,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:35:38,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:35:38,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:35:38,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:35:38,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:35:38,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:35:38,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:35:38,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:35:38,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:35:38,253 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec [2024-10-11 02:35:38,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:35:38,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:35:38,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:35:38,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:35:38,569 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:35:38,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c [2024-10-11 02:35:40,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:35:40,336 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:35:40,338 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c [2024-10-11 02:35:40,368 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/24105a597/df7b8185b55940a2a0eba1d58dace23c/FLAG09f40b110 [2024-10-11 02:35:40,386 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/24105a597/df7b8185b55940a2a0eba1d58dace23c [2024-10-11 02:35:40,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:35:40,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:35:40,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:35:40,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:35:40,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:35:40,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:35:40" (1/1) ... [2024-10-11 02:35:40,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a5a4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:40, skipping insertion in model container [2024-10-11 02:35:40,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:35:40" (1/1) ... [2024-10-11 02:35:40,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:35:40,975 WARN L248 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_spec2_product25.cil.c[66231,66244] [2024-10-11 02:35:41,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:35:41,027 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:35:41,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-10-11 02:35:41,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] [2024-10-11 02:35:41,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] [2024-10-11 02:35:41,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] [2024-10-11 02:35:41,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] [2024-10-11 02:35:41,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] [2024-10-11 02:35:41,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] [2024-10-11 02:35:41,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] [2024-10-11 02:35:41,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] [2024-10-11 02:35:41,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] [2024-10-11 02:35:41,141 WARN L248 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_spec2_product25.cil.c[66231,66244] [2024-10-11 02:35:41,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:35:41,187 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:35:41,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41 WrapperNode [2024-10-11 02:35:41,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:35:41,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:35:41,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:35:41,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:35:41,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,289 INFO L138 Inliner]: procedures = 91, calls = 334, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 845 [2024-10-11 02:35:41,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:35:41,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:35:41,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:35:41,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:35:41,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,336 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]. [2024-10-11 02:35:41,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,357 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:35:41,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:35:41,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:35:41,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:35:41,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (1/1) ... [2024-10-11 02:35:41,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:35:41,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:35:41,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 02:35:41,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 02:35:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:35:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-11 02:35:41,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-11 02:35:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-10-11 02:35:41,529 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-10-11 02:35:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-11 02:35:41,530 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-11 02:35:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-11 02:35:41,531 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-11 02:35:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-11 02:35:41,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-11 02:35:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 02:35:41,532 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 02:35:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 02:35:41,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 02:35:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-10-11 02:35:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-10-11 02:35:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-11 02:35:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-11 02:35:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-11 02:35:41,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-11 02:35:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-11 02:35:41,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-11 02:35:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-11 02:35:41,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-11 02:35:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-11 02:35:41,534 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-11 02:35:41,535 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-11 02:35:41,535 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-11 02:35:41,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-11 02:35:41,535 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 02:35:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-11 02:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-11 02:35:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-11 02:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-11 02:35:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-11 02:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-11 02:35:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-11 02:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:35:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:35:41,539 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-11 02:35:41,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-11 02:35:41,775 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:35:41,778 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:35:42,983 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-10-11 02:35:42,983 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:35:43,061 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:35:43,061 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 02:35:43,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:35:43 BoogieIcfgContainer [2024-10-11 02:35:43,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:35:43,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:35:43,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:35:43,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:35:43,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:35:40" (1/3) ... [2024-10-11 02:35:43,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac02494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:35:43, skipping insertion in model container [2024-10-11 02:35:43,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:35:41" (2/3) ... [2024-10-11 02:35:43,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac02494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:35:43, skipping insertion in model container [2024-10-11 02:35:43,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:35:43" (3/3) ... [2024-10-11 02:35:43,074 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.c [2024-10-11 02:35:43,089 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:35:43,090 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:35:43,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:35:43,185 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;@66fe5cfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:35:43,186 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:35:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 520 states, 409 states have (on average 1.7481662591687042) internal successors, (715), 430 states have internal predecessors, (715), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2024-10-11 02:35:43,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 02:35:43,221 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:35:43,222 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:35:43,222 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:35:43,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:35:43,227 INFO L85 PathProgramCache]: Analyzing trace with hash 964666655, now seen corresponding path program 1 times [2024-10-11 02:35:43,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:35:43,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305649331] [2024-10-11 02:35:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:35:43,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:35:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:43,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:35:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:44,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:35:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:44,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:35:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:44,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:35:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:44,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:35:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:44,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:35:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:44,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:35:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:44,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 02:35:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:35:44,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:35:44,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305649331] [2024-10-11 02:35:44,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305649331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:35:44,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:35:44,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:35:44,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090285312] [2024-10-11 02:35:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:35:44,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:35:44,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:35:44,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:35:44,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:35:44,600 INFO L87 Difference]: Start difference. First operand has 520 states, 409 states have (on average 1.7481662591687042) internal successors, (715), 430 states have internal predecessors, (715), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:35:50,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:35:50,272 INFO L93 Difference]: Finished difference Result 1272 states and 2208 transitions. [2024-10-11 02:35:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:35:50,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 5 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 [2024-10-11 02:35:50,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:35:50,304 INFO L225 Difference]: With dead ends: 1272 [2024-10-11 02:35:50,305 INFO L226 Difference]: Without dead ends: 761 [2024-10-11 02:35:50,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:35:50,318 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 1366 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 2906 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 2906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:35:50,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 1636 Invalid, 3239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [333 Valid, 2906 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-10-11 02:35:50,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-10-11 02:35:50,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2024-10-11 02:35:50,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7371007371007372) internal successors, (707), 426 states have internal predecessors, (707), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-10-11 02:35:50,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 878 transitions. [2024-10-11 02:35:50,587 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 878 transitions. Word has length 65 [2024-10-11 02:35:50,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:35:50,588 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 878 transitions. [2024-10-11 02:35:50,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:35:50,589 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 878 transitions. [2024-10-11 02:35:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 02:35:50,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:35:50,596 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:35:50,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 02:35:50,597 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:35:50,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:35:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash 272204788, now seen corresponding path program 1 times [2024-10-11 02:35:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:35:50,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788536470] [2024-10-11 02:35:50,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:35:50,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:35:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:50,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:35:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:50,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:35:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:50,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:35:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:51,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:35:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:51,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:35:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:51,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:35:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:51,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:35:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:51,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 02:35:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:51,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:35:51,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:35:51,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788536470] [2024-10-11 02:35:51,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788536470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:35:51,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:35:51,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:35:51,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81697034] [2024-10-11 02:35:51,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:35:51,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:35:51,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:35:51,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:35:51,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:35:51,344 INFO L87 Difference]: Start difference. First operand 516 states and 878 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:35:55,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:35:55,785 INFO L93 Difference]: Finished difference Result 1265 states and 2177 transitions. [2024-10-11 02:35:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:35:55,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 5 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 [2024-10-11 02:35:55,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:35:55,795 INFO L225 Difference]: With dead ends: 1265 [2024-10-11 02:35:55,795 INFO L226 Difference]: Without dead ends: 761 [2024-10-11 02:35:55,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:35:55,802 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 1375 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-11 02:35:55,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1609 Invalid, 3110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-11 02:35:55,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-10-11 02:35:55,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2024-10-11 02:35:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7346437346437347) internal successors, (706), 426 states have internal predecessors, (706), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-10-11 02:35:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 877 transitions. [2024-10-11 02:35:55,951 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 877 transitions. Word has length 67 [2024-10-11 02:35:55,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:35:55,951 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 877 transitions. [2024-10-11 02:35:55,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:35:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 877 transitions. [2024-10-11 02:35:55,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 02:35:55,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:35:55,956 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:35:55,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 02:35:55,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:35:55,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:35:55,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1252745832, now seen corresponding path program 1 times [2024-10-11 02:35:55,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:35:55,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208169892] [2024-10-11 02:35:55,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:35:55,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:35:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:56,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:35:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:56,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:35:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:56,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:35:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:56,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:35:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:56,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:35:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:56,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:35:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:56,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:35:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:56,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 02:35:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:35:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:35:56,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:35:56,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208169892] [2024-10-11 02:35:56,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208169892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:35:56,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:35:56,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:35:56,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513672045] [2024-10-11 02:35:56,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:35:56,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:35:56,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:35:56,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:35:56,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:35:56,627 INFO L87 Difference]: Start difference. First operand 516 states and 877 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:00,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:36:00,735 INFO L93 Difference]: Finished difference Result 1265 states and 2176 transitions. [2024-10-11 02:36:00,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:36:00,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 5 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 [2024-10-11 02:36:00,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:36:00,743 INFO L225 Difference]: With dead ends: 1265 [2024-10-11 02:36:00,744 INFO L226 Difference]: Without dead ends: 761 [2024-10-11 02:36:00,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:36:00,750 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 1372 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:36:00,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 1614 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-11 02:36:00,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-10-11 02:36:00,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2024-10-11 02:36:00,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7321867321867321) internal successors, (705), 426 states have internal predecessors, (705), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-10-11 02:36:00,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 876 transitions. [2024-10-11 02:36:00,850 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 876 transitions. Word has length 68 [2024-10-11 02:36:00,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:36:00,851 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 876 transitions. [2024-10-11 02:36:00,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:00,854 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 876 transitions. [2024-10-11 02:36:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 02:36:00,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:36:00,857 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:36:00,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 02:36:00,857 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:36:00,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:36:00,857 INFO L85 PathProgramCache]: Analyzing trace with hash -877926928, now seen corresponding path program 1 times [2024-10-11 02:36:00,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:36:00,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132799843] [2024-10-11 02:36:00,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:36:00,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:36:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:01,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:01,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:01,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:36:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:01,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:36:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:01,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:01,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:01,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:36:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:01,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 02:36:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:36:01,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:36:01,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132799843] [2024-10-11 02:36:01,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132799843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:36:01,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:36:01,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:36:01,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599709720] [2024-10-11 02:36:01,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:36:01,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:36:01,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:36:01,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:36:01,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:36:01,409 INFO L87 Difference]: Start difference. First operand 516 states and 876 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:05,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:36:05,663 INFO L93 Difference]: Finished difference Result 1265 states and 2175 transitions. [2024-10-11 02:36:05,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:36:05,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 5 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 69 [2024-10-11 02:36:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:36:05,669 INFO L225 Difference]: With dead ends: 1265 [2024-10-11 02:36:05,669 INFO L226 Difference]: Without dead ends: 761 [2024-10-11 02:36:05,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:36:05,673 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 1365 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 3105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:36:05,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 1619 Invalid, 3105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-11 02:36:05,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-10-11 02:36:05,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2024-10-11 02:36:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7297297297297298) internal successors, (704), 426 states have internal predecessors, (704), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-10-11 02:36:05,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 875 transitions. [2024-10-11 02:36:05,774 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 875 transitions. Word has length 69 [2024-10-11 02:36:05,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:36:05,775 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 875 transitions. [2024-10-11 02:36:05,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:05,775 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 875 transitions. [2024-10-11 02:36:05,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 02:36:05,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:36:05,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:36:05,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 02:36:05,778 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:36:05,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:36:05,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1739794924, now seen corresponding path program 1 times [2024-10-11 02:36:05,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:36:05,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920623699] [2024-10-11 02:36:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:36:05,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:36:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:06,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:06,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:06,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:36:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:06,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:36:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:06,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:06,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:06,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:36:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:06,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 02:36:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:36:06,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:36:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920623699] [2024-10-11 02:36:06,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920623699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:36:06,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:36:06,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:36:06,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561785889] [2024-10-11 02:36:06,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:36:06,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:36:06,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:36:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:36:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:36:06,412 INFO L87 Difference]: Start difference. First operand 516 states and 875 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:10,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:36:10,278 INFO L93 Difference]: Finished difference Result 1265 states and 2174 transitions. [2024-10-11 02:36:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:36:10,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 5 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 70 [2024-10-11 02:36:10,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:36:10,283 INFO L225 Difference]: With dead ends: 1265 [2024-10-11 02:36:10,283 INFO L226 Difference]: Without dead ends: 761 [2024-10-11 02:36:10,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:36:10,287 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 1777 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1849 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:36:10,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1849 Valid, 1568 Invalid, 3169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-11 02:36:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-10-11 02:36:10,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 516. [2024-10-11 02:36:10,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.7272727272727273) internal successors, (703), 426 states have internal predecessors, (703), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-10-11 02:36:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 874 transitions. [2024-10-11 02:36:10,387 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 874 transitions. Word has length 70 [2024-10-11 02:36:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:36:10,387 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 874 transitions. [2024-10-11 02:36:10,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 874 transitions. [2024-10-11 02:36:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 02:36:10,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:36:10,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:36:10,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 02:36:10,391 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:36:10,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:36:10,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2111628107, now seen corresponding path program 1 times [2024-10-11 02:36:10,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:36:10,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307122586] [2024-10-11 02:36:10,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:36:10,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:36:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:10,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:10,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:10,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:36:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:10,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:36:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:11,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:11,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:11,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:36:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:11,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 02:36:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:11,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:36:11,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:36:11,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307122586] [2024-10-11 02:36:11,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307122586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:36:11,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:36:11,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 02:36:11,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536064739] [2024-10-11 02:36:11,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:36:11,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 02:36:11,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:36:11,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 02:36:11,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:36:11,110 INFO L87 Difference]: Start difference. First operand 516 states and 874 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:16,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:36:16,945 INFO L93 Difference]: Finished difference Result 1241 states and 2130 transitions. [2024-10-11 02:36:16,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:36:16,946 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-10-11 02:36:16,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:36:16,951 INFO L225 Difference]: With dead ends: 1241 [2024-10-11 02:36:16,952 INFO L226 Difference]: Without dead ends: 777 [2024-10-11 02:36:16,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-10-11 02:36:16,956 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 1433 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 5208 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 5560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 5208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:36:16,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 2881 Invalid, 5560 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [352 Valid, 5208 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-11 02:36:16,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-10-11 02:36:17,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 520. [2024-10-11 02:36:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 410 states have (on average 1.7097560975609756) internal successors, (701), 429 states have internal predecessors, (701), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (85), 82 states have call predecessors, (85), 83 states have call successors, (85) [2024-10-11 02:36:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 874 transitions. [2024-10-11 02:36:17,066 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 874 transitions. Word has length 71 [2024-10-11 02:36:17,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:36:17,067 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 874 transitions. [2024-10-11 02:36:17,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 874 transitions. [2024-10-11 02:36:17,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 02:36:17,073 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:36:17,073 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:36:17,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 02:36:17,074 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:36:17,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:36:17,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1614690238, now seen corresponding path program 1 times [2024-10-11 02:36:17,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:36:17,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634650499] [2024-10-11 02:36:17,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:36:17,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:36:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:17,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:17,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:17,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:36:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:17,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:36:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:17,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:17,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:17,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-11 02:36:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:17,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:36:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:17,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:36:17,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:36:17,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634650499] [2024-10-11 02:36:17,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634650499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:36:17,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:36:17,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 02:36:17,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417524841] [2024-10-11 02:36:17,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:36:17,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 02:36:17,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:36:17,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 02:36:17,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:36:17,770 INFO L87 Difference]: Start difference. First operand 520 states and 874 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:27,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:36:27,164 INFO L93 Difference]: Finished difference Result 1806 states and 3171 transitions. [2024-10-11 02:36:27,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 02:36:27,165 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2024-10-11 02:36:27,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:36:27,181 INFO L225 Difference]: With dead ends: 1806 [2024-10-11 02:36:27,181 INFO L226 Difference]: Without dead ends: 1338 [2024-10-11 02:36:27,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2024-10-11 02:36:27,187 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 3739 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 6531 mSolverCounterSat, 1108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3813 SdHoareTripleChecker+Valid, 3477 SdHoareTripleChecker+Invalid, 7639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1108 IncrementalHoareTripleChecker+Valid, 6531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:36:27,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3813 Valid, 3477 Invalid, 7639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1108 Valid, 6531 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-10-11 02:36:27,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-10-11 02:36:27,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 947. [2024-10-11 02:36:27,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 741 states have (on average 1.680161943319838) internal successors, (1245), 774 states have internal predecessors, (1245), 165 states have call successors, (165), 39 states have call predecessors, (165), 40 states have return successors, (171), 157 states have call predecessors, (171), 160 states have call successors, (171) [2024-10-11 02:36:27,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1581 transitions. [2024-10-11 02:36:27,450 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1581 transitions. Word has length 76 [2024-10-11 02:36:27,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:36:27,451 INFO L471 AbstractCegarLoop]: Abstraction has 947 states and 1581 transitions. [2024-10-11 02:36:27,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:36:27,451 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1581 transitions. [2024-10-11 02:36:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 02:36:27,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:36:27,454 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:36:27,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 02:36:27,454 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:36:27,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:36:27,456 INFO L85 PathProgramCache]: Analyzing trace with hash -865646778, now seen corresponding path program 1 times [2024-10-11 02:36:27,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:36:27,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248438962] [2024-10-11 02:36:27,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:36:27,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:36:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:27,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:27,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:27,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:36:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:28,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:36:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:28,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:28,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:28,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:36:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:28,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:28,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 02:36:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:36:28,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:36:28,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248438962] [2024-10-11 02:36:28,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248438962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:36:28,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:36:28,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 02:36:28,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892663275] [2024-10-11 02:36:28,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:36:28,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 02:36:28,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:36:28,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 02:36:28,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:36:28,281 INFO L87 Difference]: Start difference. First operand 947 states and 1581 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-11 02:36:39,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:36:39,336 INFO L93 Difference]: Finished difference Result 2364 states and 4051 transitions. [2024-10-11 02:36:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-11 02:36:39,337 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 87 [2024-10-11 02:36:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:36:39,347 INFO L225 Difference]: With dead ends: 2364 [2024-10-11 02:36:39,348 INFO L226 Difference]: Without dead ends: 1352 [2024-10-11 02:36:39,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 02:36:39,353 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 4453 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 7724 mSolverCounterSat, 1175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 8899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1175 IncrementalHoareTripleChecker+Valid, 7724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-10-11 02:36:39,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 4120 Invalid, 8899 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1175 Valid, 7724 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-10-11 02:36:39,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-10-11 02:36:39,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 949. [2024-10-11 02:36:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 742 states have (on average 1.6536388140161724) internal successors, (1227), 776 states have internal predecessors, (1227), 165 states have call successors, (165), 39 states have call predecessors, (165), 41 states have return successors, (173), 157 states have call predecessors, (173), 160 states have call successors, (173) [2024-10-11 02:36:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1565 transitions. [2024-10-11 02:36:39,583 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1565 transitions. Word has length 87 [2024-10-11 02:36:39,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:36:39,583 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 1565 transitions. [2024-10-11 02:36:39,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-11 02:36:39,584 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1565 transitions. [2024-10-11 02:36:39,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 02:36:39,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:36:39,586 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:36:39,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 02:36:39,587 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:36:39,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:36:39,587 INFO L85 PathProgramCache]: Analyzing trace with hash 704189796, now seen corresponding path program 1 times [2024-10-11 02:36:39,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:36:39,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785980934] [2024-10-11 02:36:39,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:36:39,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:36:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:39,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:39,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:39,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:36:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:40,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:36:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:40,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:40,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:40,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:36:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:40,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:36:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:40,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:36:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:40,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:36:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:40,297 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 02:36:40,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:36:40,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785980934] [2024-10-11 02:36:40,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785980934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:36:40,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:36:40,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 02:36:40,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155530715] [2024-10-11 02:36:40,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:36:40,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 02:36:40,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:36:40,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 02:36:40,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:36:40,300 INFO L87 Difference]: Start difference. First operand 949 states and 1565 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:36:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:36:47,198 INFO L93 Difference]: Finished difference Result 2275 states and 3875 transitions. [2024-10-11 02:36:47,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 02:36:47,199 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2024-10-11 02:36:47,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:36:47,210 INFO L225 Difference]: With dead ends: 2275 [2024-10-11 02:36:47,211 INFO L226 Difference]: Without dead ends: 1384 [2024-10-11 02:36:47,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2024-10-11 02:36:47,216 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 1486 mSDsluCounter, 3679 mSDsCounter, 0 mSdLazyCounter, 6425 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 4171 SdHoareTripleChecker+Invalid, 6800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 6425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:36:47,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 4171 Invalid, 6800 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [375 Valid, 6425 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-11 02:36:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-10-11 02:36:47,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 963. [2024-10-11 02:36:47,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 750 states have (on average 1.6466666666666667) internal successors, (1235), 788 states have internal predecessors, (1235), 167 states have call successors, (167), 39 states have call predecessors, (167), 45 states have return successors, (185), 159 states have call predecessors, (185), 162 states have call successors, (185) [2024-10-11 02:36:47,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1587 transitions. [2024-10-11 02:36:47,478 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1587 transitions. Word has length 91 [2024-10-11 02:36:47,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:36:47,478 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1587 transitions. [2024-10-11 02:36:47,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:36:47,479 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1587 transitions. [2024-10-11 02:36:47,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 02:36:47,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:36:47,482 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:36:47,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 02:36:47,482 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:36:47,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:36:47,482 INFO L85 PathProgramCache]: Analyzing trace with hash -166259452, now seen corresponding path program 1 times [2024-10-11 02:36:47,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:36:47,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223168672] [2024-10-11 02:36:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:36:47,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:36:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:47,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:47,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:47,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:36:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:47,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:36:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:47,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:48,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:48,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:36:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:48,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:36:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:48,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:36:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:48,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:36:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 02:36:48,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:36:48,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223168672] [2024-10-11 02:36:48,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223168672] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:36:48,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:36:48,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:36:48,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140780738] [2024-10-11 02:36:48,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:36:48,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:36:48,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:36:48,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:36:48,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:36:48,030 INFO L87 Difference]: Start difference. First operand 963 states and 1587 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 02:36:51,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:36:51,737 INFO L93 Difference]: Finished difference Result 2251 states and 3799 transitions. [2024-10-11 02:36:51,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:36:51,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2024-10-11 02:36:51,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:36:51,746 INFO L225 Difference]: With dead ends: 2251 [2024-10-11 02:36:51,746 INFO L226 Difference]: Without dead ends: 1340 [2024-10-11 02:36:51,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:36:51,750 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 1811 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:36:51,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1883 Valid, 1567 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-11 02:36:51,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-10-11 02:36:51,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 963. [2024-10-11 02:36:51,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 750 states have (on average 1.64) internal successors, (1230), 788 states have internal predecessors, (1230), 167 states have call successors, (167), 39 states have call predecessors, (167), 45 states have return successors, (185), 159 states have call predecessors, (185), 162 states have call successors, (185) [2024-10-11 02:36:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1582 transitions. [2024-10-11 02:36:51,985 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1582 transitions. Word has length 91 [2024-10-11 02:36:51,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:36:51,985 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1582 transitions. [2024-10-11 02:36:51,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 02:36:51,986 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1582 transitions. [2024-10-11 02:36:51,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 02:36:51,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:36:51,988 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:36:51,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 02:36:51,989 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:36:51,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:36:51,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1773184659, now seen corresponding path program 1 times [2024-10-11 02:36:51,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:36:51,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798863009] [2024-10-11 02:36:51,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:36:51,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:36:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:36:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:36:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:36:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:36:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:36:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:36:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 02:36:52,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:36:52,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798863009] [2024-10-11 02:36:52,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798863009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:36:52,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:36:52,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 02:36:52,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781415406] [2024-10-11 02:36:52,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:36:52,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 02:36:52,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:36:52,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 02:36:52,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:36:52,550 INFO L87 Difference]: Start difference. First operand 963 states and 1582 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:36:57,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:36:57,965 INFO L93 Difference]: Finished difference Result 2247 states and 3786 transitions. [2024-10-11 02:36:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:36:57,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 92 [2024-10-11 02:36:57,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:36:57,975 INFO L225 Difference]: With dead ends: 2247 [2024-10-11 02:36:57,975 INFO L226 Difference]: Without dead ends: 1344 [2024-10-11 02:36:57,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-10-11 02:36:57,981 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 1783 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 4742 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 5222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 4742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-11 02:36:57,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 2854 Invalid, 5222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 4742 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-11 02:36:57,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2024-10-11 02:36:58,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 966. [2024-10-11 02:36:58,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 753 states have (on average 1.6374501992031874) internal successors, (1233), 791 states have internal predecessors, (1233), 167 states have call successors, (167), 39 states have call predecessors, (167), 45 states have return successors, (185), 159 states have call predecessors, (185), 162 states have call successors, (185) [2024-10-11 02:36:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1585 transitions. [2024-10-11 02:36:58,248 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1585 transitions. Word has length 92 [2024-10-11 02:36:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:36:58,248 INFO L471 AbstractCegarLoop]: Abstraction has 966 states and 1585 transitions. [2024-10-11 02:36:58,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 02:36:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1585 transitions. [2024-10-11 02:36:58,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 02:36:58,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:36:58,253 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:36:58,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 02:36:58,253 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:36:58,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:36:58,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1826077558, now seen corresponding path program 1 times [2024-10-11 02:36:58,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:36:58,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831280687] [2024-10-11 02:36:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:36:58,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:36:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:58,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:36:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:58,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:36:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:36:58,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:36:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat