./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB --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 68cd47586ea836a40d34f69dc7bca714ffc0af5c5bf2f7fbd8cfbbd6f1019685 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:18:27,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:18:27,274 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:18:27,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:18:27,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:18:27,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:18:27,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:18:27,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:18:27,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:18:27,329 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:18:27,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:18:27,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:18:27,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:18:27,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:18:27,332 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:18:27,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:18:27,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:18:27,332 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:18:27,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:18:27,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:18:27,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:18:27,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:18:27,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:18:27,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:18:27,333 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:18:27,333 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:18:27,333 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:18:27,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:18:27,334 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:18:27,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:18:27,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:18:27,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:18:27,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:27,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:18:27,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:18:27,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:18:27,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:18:27,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:27,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:18:27,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:18:27,336 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:18:27,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:18:27,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:18:27,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:18:27,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:18:27,337 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:18:27,337 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:18:27,337 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:18:27,337 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 68cd47586ea836a40d34f69dc7bca714ffc0af5c5bf2f7fbd8cfbbd6f1019685 [2024-11-27 20:18:27,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:18:27,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:18:27,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:18:27,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:18:27,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:18:27,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2024-11-27 20:18:31,064 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/data/1b556c192/81928efa72a0491aad874f165c25abd7/FLAG16930c0e7 [2024-11-27 20:18:31,449 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:18:31,449 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2024-11-27 20:18:31,471 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/data/1b556c192/81928efa72a0491aad874f165c25abd7/FLAG16930c0e7 [2024-11-27 20:18:31,508 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/data/1b556c192/81928efa72a0491aad874f165c25abd7 [2024-11-27 20:18:31,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:18:31,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:18:31,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:18:31,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:18:31,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:18:31,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:18:31" (1/1) ... [2024-11-27 20:18:31,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364cc4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:31, skipping insertion in model container [2024-11-27 20:18:31,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:18:31" (1/1) ... [2024-11-27 20:18:31,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:18:31,941 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c[9171,9184] [2024-11-27 20:18:32,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:18:32,070 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:18:32,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-27 20:18:32,082 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [87] [2024-11-27 20:18:32,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [116] [2024-11-27 20:18:32,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] [2024-11-27 20:18:32,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [426] [2024-11-27 20:18:32,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [522] [2024-11-27 20:18:32,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [625] [2024-11-27 20:18:32,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] [2024-11-27 20:18:32,117 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c[9171,9184] [2024-11-27 20:18:32,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:18:32,178 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:18:32,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32 WrapperNode [2024-11-27 20:18:32,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:18:32,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:18:32,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:18:32,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:18:32,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,227 INFO L138 Inliner]: procedures = 57, calls = 102, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 229 [2024-11-27 20:18:32,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:18:32,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:18:32,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:18:32,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:18:32,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,243 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,258 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:18:32,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,265 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:18:32,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:18:32,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:18:32,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:18:32,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (1/1) ... [2024-11-27 20:18:32,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:32,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:18:32,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:18:32,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:18:32,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:18:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-27 20:18:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-27 20:18:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-27 20:18:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-27 20:18:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-27 20:18:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-27 20:18:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 20:18:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 20:18:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-27 20:18:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-27 20:18:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-27 20:18:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-27 20:18:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:18:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-27 20:18:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-27 20:18:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:18:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:18:32,463 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:18:32,465 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:18:32,846 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-27 20:18:32,846 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:18:32,870 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:18:32,873 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 20:18:32,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:32 BoogieIcfgContainer [2024-11-27 20:18:32,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:18:32,878 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:18:32,878 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:18:32,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:18:32,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:18:31" (1/3) ... [2024-11-27 20:18:32,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5683bfc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:18:32, skipping insertion in model container [2024-11-27 20:18:32,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:32" (2/3) ... [2024-11-27 20:18:32,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5683bfc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:18:32, skipping insertion in model container [2024-11-27 20:18:32,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:32" (3/3) ... [2024-11-27 20:18:32,888 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2024-11-27 20:18:32,907 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:18:32,909 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product59.cil.c that has 8 procedures, 91 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-27 20:18:32,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:18:33,012 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;@42e79081, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:18:33,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:18:33,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 70 states have (on average 1.4) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:18:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 20:18:33,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:33,031 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:33,032 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:33,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:33,040 INFO L85 PathProgramCache]: Analyzing trace with hash 276121119, now seen corresponding path program 1 times [2024-11-27 20:18:33,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:33,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484341994] [2024-11-27 20:18:33,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:33,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:33,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:33,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:33,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484341994] [2024-11-27 20:18:33,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484341994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:33,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:33,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:18:33,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840302140] [2024-11-27 20:18:33,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:33,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:33,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:33,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:33,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:33,457 INFO L87 Difference]: Start difference. First operand has 91 states, 70 states have (on average 1.4) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:33,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:33,501 INFO L93 Difference]: Finished difference Result 162 states and 219 transitions. [2024-11-27 20:18:33,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:33,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 20:18:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:33,513 INFO L225 Difference]: With dead ends: 162 [2024-11-27 20:18:33,514 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:18:33,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:33,527 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 16 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:33,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 178 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:18:33,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:18:33,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-27 20:18:33,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 66 states have internal predecessors, (78), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:18:33,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2024-11-27 20:18:33,580 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 96 transitions. Word has length 19 [2024-11-27 20:18:33,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:33,581 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 96 transitions. [2024-11-27 20:18:33,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:33,581 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2024-11-27 20:18:33,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 20:18:33,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:33,583 INFO L218 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] [2024-11-27 20:18:33,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:18:33,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:33,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:33,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1390884504, now seen corresponding path program 1 times [2024-11-27 20:18:33,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:33,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746943758] [2024-11-27 20:18:33,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:33,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:33,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:33,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:33,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746943758] [2024-11-27 20:18:33,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746943758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:33,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:33,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:18:33,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066909911] [2024-11-27 20:18:33,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:33,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:18:33,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:33,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:18:33,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:18:33,865 INFO L87 Difference]: Start difference. First operand 74 states and 96 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:34,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:34,183 INFO L93 Difference]: Finished difference Result 244 states and 324 transitions. [2024-11-27 20:18:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:18:34,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-27 20:18:34,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:34,186 INFO L225 Difference]: With dead ends: 244 [2024-11-27 20:18:34,186 INFO L226 Difference]: Without dead ends: 177 [2024-11-27 20:18:34,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:18:34,188 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 228 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:34,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 382 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:18:34,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-27 20:18:34,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 171. [2024-11-27 20:18:34,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 132 states have (on average 1.378787878787879) internal successors, (182), 150 states have internal predecessors, (182), 22 states have call successors, (22), 16 states have call predecessors, (22), 16 states have return successors, (23), 14 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-27 20:18:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 227 transitions. [2024-11-27 20:18:34,246 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 227 transitions. Word has length 23 [2024-11-27 20:18:34,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:34,249 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 227 transitions. [2024-11-27 20:18:34,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:34,250 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 227 transitions. [2024-11-27 20:18:34,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-27 20:18:34,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:34,251 INFO L218 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] [2024-11-27 20:18:34,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:18:34,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:34,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:34,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1719576414, now seen corresponding path program 1 times [2024-11-27 20:18:34,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:34,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018501625] [2024-11-27 20:18:34,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:34,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:34,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:34,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:34,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018501625] [2024-11-27 20:18:34,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018501625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:34,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:34,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:18:34,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632260770] [2024-11-27 20:18:34,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:34,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:18:34,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:34,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:18:34,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:18:34,466 INFO L87 Difference]: Start difference. First operand 171 states and 227 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:34,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:34,634 INFO L93 Difference]: Finished difference Result 482 states and 666 transitions. [2024-11-27 20:18:34,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:18:34,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-27 20:18:34,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:34,641 INFO L225 Difference]: With dead ends: 482 [2024-11-27 20:18:34,641 INFO L226 Difference]: Without dead ends: 318 [2024-11-27 20:18:34,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:18:34,645 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 62 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:34,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 346 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:18:34,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-27 20:18:34,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2024-11-27 20:18:34,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 244 states have (on average 1.3524590163934427) internal successors, (330), 276 states have internal predecessors, (330), 44 states have call successors, (44), 32 states have call predecessors, (44), 29 states have return successors, (50), 25 states have call predecessors, (50), 44 states have call successors, (50) [2024-11-27 20:18:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 424 transitions. [2024-11-27 20:18:34,709 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 424 transitions. Word has length 27 [2024-11-27 20:18:34,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:34,710 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 424 transitions. [2024-11-27 20:18:34,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:34,710 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 424 transitions. [2024-11-27 20:18:34,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 20:18:34,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:34,713 INFO L218 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] [2024-11-27 20:18:34,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:18:34,713 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:34,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:34,714 INFO L85 PathProgramCache]: Analyzing trace with hash 801604003, now seen corresponding path program 1 times [2024-11-27 20:18:34,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:34,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846792400] [2024-11-27 20:18:34,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:34,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:34,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:34,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:34,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846792400] [2024-11-27 20:18:34,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846792400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:34,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:34,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:18:34,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519175090] [2024-11-27 20:18:34,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:34,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:34,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:34,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:34,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:34,875 INFO L87 Difference]: Start difference. First operand 318 states and 424 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:34,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:34,988 INFO L93 Difference]: Finished difference Result 732 states and 1003 transitions. [2024-11-27 20:18:34,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:34,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-27 20:18:34,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:35,001 INFO L225 Difference]: With dead ends: 732 [2024-11-27 20:18:35,001 INFO L226 Difference]: Without dead ends: 421 [2024-11-27 20:18:35,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:35,008 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 56 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:35,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 149 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:18:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-27 20:18:35,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 410. [2024-11-27 20:18:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 320 states have (on average 1.30625) internal successors, (418), 347 states have internal predecessors, (418), 47 states have call successors, (47), 45 states have call predecessors, (47), 42 states have return successors, (69), 41 states have call predecessors, (69), 47 states have call successors, (69) [2024-11-27 20:18:35,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 534 transitions. [2024-11-27 20:18:35,127 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 534 transitions. Word has length 29 [2024-11-27 20:18:35,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:35,128 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 534 transitions. [2024-11-27 20:18:35,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:35,128 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 534 transitions. [2024-11-27 20:18:35,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-27 20:18:35,132 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:35,132 INFO L218 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] [2024-11-27 20:18:35,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:18:35,132 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:35,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:35,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1378188356, now seen corresponding path program 1 times [2024-11-27 20:18:35,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:35,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728115464] [2024-11-27 20:18:35,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:35,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:35,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:35,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728115464] [2024-11-27 20:18:35,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728115464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:35,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:35,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:18:35,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172369546] [2024-11-27 20:18:35,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:35,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:18:35,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:35,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:18:35,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:18:35,295 INFO L87 Difference]: Start difference. First operand 410 states and 534 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:18:35,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:35,419 INFO L93 Difference]: Finished difference Result 412 states and 535 transitions. [2024-11-27 20:18:35,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:18:35,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-11-27 20:18:35,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:35,424 INFO L225 Difference]: With dead ends: 412 [2024-11-27 20:18:35,424 INFO L226 Difference]: Without dead ends: 410 [2024-11-27 20:18:35,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:18:35,426 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 49 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:35,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 324 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:18:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-27 20:18:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2024-11-27 20:18:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 320 states have (on average 1.296875) internal successors, (415), 347 states have internal predecessors, (415), 47 states have call successors, (47), 45 states have call predecessors, (47), 42 states have return successors, (69), 41 states have call predecessors, (69), 47 states have call successors, (69) [2024-11-27 20:18:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 531 transitions. [2024-11-27 20:18:35,497 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 531 transitions. Word has length 31 [2024-11-27 20:18:35,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:35,498 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 531 transitions. [2024-11-27 20:18:35,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:18:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 531 transitions. [2024-11-27 20:18:35,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 20:18:35,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:35,504 INFO L218 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] [2024-11-27 20:18:35,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:18:35,507 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:35,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:35,507 INFO L85 PathProgramCache]: Analyzing trace with hash -132966162, now seen corresponding path program 1 times [2024-11-27 20:18:35,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:35,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656115948] [2024-11-27 20:18:35,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:35,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:35,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:35,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:35,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656115948] [2024-11-27 20:18:35,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656115948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:35,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:35,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:18:35,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326807083] [2024-11-27 20:18:35,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:35,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:18:35,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:35,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:18:35,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:18:35,685 INFO L87 Difference]: Start difference. First operand 410 states and 531 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:18:35,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:35,786 INFO L93 Difference]: Finished difference Result 825 states and 1107 transitions. [2024-11-27 20:18:35,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:18:35,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2024-11-27 20:18:35,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:35,795 INFO L225 Difference]: With dead ends: 825 [2024-11-27 20:18:35,795 INFO L226 Difference]: Without dead ends: 422 [2024-11-27 20:18:35,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:18:35,801 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:35,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 366 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:18:35,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-27 20:18:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2024-11-27 20:18:35,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 332 states have (on average 1.286144578313253) internal successors, (427), 359 states have internal predecessors, (427), 47 states have call successors, (47), 45 states have call predecessors, (47), 42 states have return successors, (69), 41 states have call predecessors, (69), 47 states have call successors, (69) [2024-11-27 20:18:35,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 543 transitions. [2024-11-27 20:18:35,889 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 543 transitions. Word has length 45 [2024-11-27 20:18:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:35,889 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 543 transitions. [2024-11-27 20:18:35,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:18:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 543 transitions. [2024-11-27 20:18:35,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 20:18:35,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:35,893 INFO L218 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] [2024-11-27 20:18:35,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:18:35,894 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:35,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:35,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2127110868, now seen corresponding path program 1 times [2024-11-27 20:18:35,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:35,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98687414] [2024-11-27 20:18:35,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:35,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:36,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:36,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98687414] [2024-11-27 20:18:36,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98687414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:36,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:36,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:18:36,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879643067] [2024-11-27 20:18:36,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:36,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:18:36,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:36,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:18:36,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:18:36,105 INFO L87 Difference]: Start difference. First operand 422 states and 543 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:18:36,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:36,202 INFO L93 Difference]: Finished difference Result 766 states and 1010 transitions. [2024-11-27 20:18:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:18:36,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2024-11-27 20:18:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:36,207 INFO L225 Difference]: With dead ends: 766 [2024-11-27 20:18:36,207 INFO L226 Difference]: Without dead ends: 351 [2024-11-27 20:18:36,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:18:36,212 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:36,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 452 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:18:36,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-27 20:18:36,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-27 20:18:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 275 states have (on average 1.2763636363636364) internal successors, (351), 297 states have internal predecessors, (351), 40 states have call successors, (40), 38 states have call predecessors, (40), 35 states have return successors, (51), 34 states have call predecessors, (51), 40 states have call successors, (51) [2024-11-27 20:18:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 442 transitions. [2024-11-27 20:18:36,271 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 442 transitions. Word has length 45 [2024-11-27 20:18:36,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:36,271 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 442 transitions. [2024-11-27 20:18:36,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:18:36,271 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 442 transitions. [2024-11-27 20:18:36,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 20:18:36,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:36,274 INFO L218 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] [2024-11-27 20:18:36,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:18:36,274 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:36,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:36,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1350207978, now seen corresponding path program 1 times [2024-11-27 20:18:36,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:36,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770319898] [2024-11-27 20:18:36,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:36,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:36,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:36,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:36,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770319898] [2024-11-27 20:18:36,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770319898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:36,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:36,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:18:36,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797801887] [2024-11-27 20:18:36,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:36,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:18:36,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:36,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:18:36,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:18:36,466 INFO L87 Difference]: Start difference. First operand 351 states and 442 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:18:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:36,612 INFO L93 Difference]: Finished difference Result 763 states and 1025 transitions. [2024-11-27 20:18:36,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:18:36,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2024-11-27 20:18:36,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:36,619 INFO L225 Difference]: With dead ends: 763 [2024-11-27 20:18:36,619 INFO L226 Difference]: Without dead ends: 523 [2024-11-27 20:18:36,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:18:36,621 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 50 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:36,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 504 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:18:36,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-27 20:18:36,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 518. [2024-11-27 20:18:36,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 400 states have (on average 1.2625) internal successors, (505), 431 states have internal predecessors, (505), 60 states have call successors, (60), 58 states have call predecessors, (60), 57 states have return successors, (101), 56 states have call predecessors, (101), 60 states have call successors, (101) [2024-11-27 20:18:36,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 666 transitions. [2024-11-27 20:18:36,700 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 666 transitions. Word has length 45 [2024-11-27 20:18:36,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:36,700 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 666 transitions. [2024-11-27 20:18:36,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:18:36,701 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 666 transitions. [2024-11-27 20:18:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-27 20:18:36,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:36,708 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:36,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:18:36,709 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:36,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:36,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1420551535, now seen corresponding path program 1 times [2024-11-27 20:18:36,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:36,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594033758] [2024-11-27 20:18:36,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:36,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:37,051 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:18:37,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:37,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594033758] [2024-11-27 20:18:37,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594033758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:18:37,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439667578] [2024-11-27 20:18:37,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:37,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:18:37,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:18:37,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:18:37,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:18:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:37,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:18:37,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:18:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:37,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:18:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:18:37,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439667578] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:18:37,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:18:37,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-27 20:18:37,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002971850] [2024-11-27 20:18:37,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:18:37,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:18:37,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:37,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:18:37,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:18:37,607 INFO L87 Difference]: Start difference. First operand 518 states and 666 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:18:37,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:37,872 INFO L93 Difference]: Finished difference Result 1225 states and 1667 transitions. [2024-11-27 20:18:37,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:18:37,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2024-11-27 20:18:37,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:37,880 INFO L225 Difference]: With dead ends: 1225 [2024-11-27 20:18:37,880 INFO L226 Difference]: Without dead ends: 818 [2024-11-27 20:18:37,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 152 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:18:37,884 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 102 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:37,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 522 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:18:37,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-27 20:18:37,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 724. [2024-11-27 20:18:37,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 554 states have (on average 1.2707581227436824) internal successors, (704), 599 states have internal predecessors, (704), 87 states have call successors, (87), 83 states have call predecessors, (87), 82 states have return successors, (158), 75 states have call predecessors, (158), 87 states have call successors, (158) [2024-11-27 20:18:37,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 949 transitions. [2024-11-27 20:18:37,968 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 949 transitions. Word has length 78 [2024-11-27 20:18:37,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:37,969 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 949 transitions. [2024-11-27 20:18:37,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:18:37,969 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 949 transitions. [2024-11-27 20:18:37,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-27 20:18:37,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:37,973 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:37,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:18:38,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-27 20:18:38,174 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:38,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:38,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1918534966, now seen corresponding path program 2 times [2024-11-27 20:18:38,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:38,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543977071] [2024-11-27 20:18:38,176 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:18:38,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:38,217 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:18:38,217 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:18:38,574 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-27 20:18:38,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:38,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543977071] [2024-11-27 20:18:38,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543977071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:38,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:38,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:18:38,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610704631] [2024-11-27 20:18:38,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:38,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:18:38,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:38,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:18:38,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:18:38,578 INFO L87 Difference]: Start difference. First operand 724 states and 949 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 20:18:38,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:38,906 INFO L93 Difference]: Finished difference Result 1731 states and 2355 transitions. [2024-11-27 20:18:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:18:38,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 111 [2024-11-27 20:18:38,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:38,920 INFO L225 Difference]: With dead ends: 1731 [2024-11-27 20:18:38,920 INFO L226 Difference]: Without dead ends: 1116 [2024-11-27 20:18:38,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:18:38,925 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 54 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:38,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 470 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:18:38,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2024-11-27 20:18:39,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1104. [2024-11-27 20:18:39,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 845 states have (on average 1.2686390532544378) internal successors, (1072), 908 states have internal predecessors, (1072), 136 states have call successors, (136), 128 states have call predecessors, (136), 122 states have return successors, (227), 113 states have call predecessors, (227), 136 states have call successors, (227) [2024-11-27 20:18:39,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1435 transitions. [2024-11-27 20:18:39,049 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1435 transitions. Word has length 111 [2024-11-27 20:18:39,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:39,049 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1435 transitions. [2024-11-27 20:18:39,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-27 20:18:39,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1435 transitions. [2024-11-27 20:18:39,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-27 20:18:39,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:39,062 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:39,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:18:39,063 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:39,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:39,064 INFO L85 PathProgramCache]: Analyzing trace with hash -380194936, now seen corresponding path program 1 times [2024-11-27 20:18:39,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:39,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860227169] [2024-11-27 20:18:39,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:39,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 20:18:39,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:39,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860227169] [2024-11-27 20:18:39,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860227169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:39,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:39,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:18:39,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253927390] [2024-11-27 20:18:39,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:39,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:18:39,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:39,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:18:39,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:18:39,284 INFO L87 Difference]: Start difference. First operand 1104 states and 1435 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:18:39,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:39,372 INFO L93 Difference]: Finished difference Result 1611 states and 2076 transitions. [2024-11-27 20:18:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:18:39,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 111 [2024-11-27 20:18:39,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:39,375 INFO L225 Difference]: With dead ends: 1611 [2024-11-27 20:18:39,375 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:18:39,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:18:39,381 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:39,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 347 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:18:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:18:39,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:18:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:39,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:18:39,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2024-11-27 20:18:39,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:39,384 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:18:39,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:18:39,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:18:39,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:18:39,388 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:18:39,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:18:39,393 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:39,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:18:42,647 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:18:42,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:18:42 BoogieIcfgContainer [2024-11-27 20:18:42,670 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:18:42,671 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:18:42,671 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:18:42,671 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:18:42,672 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:32" (3/4) ... [2024-11-27 20:18:42,675 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:18:42,681 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-27 20:18:42,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-27 20:18:42,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-27 20:18:42,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-27 20:18:42,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-27 20:18:42,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 20:18:42,683 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-27 20:18:42,691 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-27 20:18:42,691 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-27 20:18:42,692 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 20:18:42,692 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:18:42,693 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:18:42,811 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:18:42,812 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:18:42,812 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:18:42,813 INFO L158 Benchmark]: Toolchain (without parser) took 11300.45ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.4MB in the beginning and 303.3MB in the end (delta: -209.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2024-11-27 20:18:42,813 INFO L158 Benchmark]: CDTParser took 0.96ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:18:42,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 665.19ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 74.1MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:18:42,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.22ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:18:42,814 INFO L158 Benchmark]: Boogie Preprocessor took 48.07ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 70.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:18:42,815 INFO L158 Benchmark]: RCFGBuilder took 596.57ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 52.4MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:18:42,815 INFO L158 Benchmark]: TraceAbstraction took 9792.34ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 52.0MB in the beginning and 311.6MB in the end (delta: -259.5MB). Peak memory consumption was 177.5MB. Max. memory is 16.1GB. [2024-11-27 20:18:42,816 INFO L158 Benchmark]: Witness Printer took 141.07ms. Allocated memory is still 352.3MB. Free memory was 311.6MB in the beginning and 303.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:18:42,818 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 665.19ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 74.1MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.22ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.07ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 70.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 596.57ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 52.4MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9792.34ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 52.0MB in the beginning and 311.6MB in the end (delta: -259.5MB). Peak memory consumption was 177.5MB. Max. memory is 16.1GB. * Witness Printer took 141.07ms. Allocated memory is still 352.3MB. Free memory was 311.6MB in the beginning and 303.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [87] - GenericResultAtLocation [Line: 116]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [116] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] - GenericResultAtLocation [Line: 426]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [426] - GenericResultAtLocation [Line: 522]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [522] - GenericResultAtLocation [Line: 625]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [625] - GenericResultAtLocation [Line: 634]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 630]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 621 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 617 mSDsluCounter, 4040 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2867 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 405 IncrementalHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 1173 mSDtfsCounter, 405 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 175 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1104occurred in iteration=10, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 128 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 642 NumberOfCodeBlocks, 642 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 707 ConstructedInterpolants, 0 QuantifiedInterpolants, 1278 SizeOfPredicates, 2 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 181/199 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 131]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) || (((2 <= waterLevel) && (splverifierCounter == 0)) && (0 != systemActive))) || (((pumpRunning == 0) && (2 <= waterLevel)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:18:42,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9d2986-0443-402b-9397-9008ba5cc3f6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE