./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC --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 7491e9e7e66695ce6d97d4c4c38cf37fc3e1ef2df09eb8fb958f4ec180b71f50 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:53:57,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:53:57,671 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:53:57,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:53:57,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:53:57,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:53:57,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:53:57,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:53:57,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:53:57,735 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:53:57,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:53:57,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:53:57,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:53:57,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:53:57,736 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:53:57,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:53:57,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:53:57,738 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:53:57,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:53:57,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:53:57,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:53:57,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:53:57,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:53:57,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:53:57,741 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:53:57,741 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:53:57,741 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:53:57,741 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:53:57,742 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:53:57,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:53:57,743 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:53:57,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:53:57,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:53:57,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:53:57,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:53:57,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:53:57,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:53:57,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:53:57,744 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:53:57,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:53:57,744 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:53:57,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:53:57,744 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:53:57,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:53:57,745 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:53:57,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:53:57,745 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:53:57,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:53:57,745 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_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC 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 -> 7491e9e7e66695ce6d97d4c4c38cf37fc3e1ef2df09eb8fb958f4ec180b71f50 [2024-11-23 23:53:58,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:53:58,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:53:58,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:53:58,131 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:53:58,131 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:53:58,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2024-11-23 23:54:01,906 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/data/5b02b99b0/7d9ae3fe949a40d98d746a26f1dd7002/FLAG2e38fdd20 [2024-11-23 23:54:02,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:54:02,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2024-11-23 23:54:02,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/data/5b02b99b0/7d9ae3fe949a40d98d746a26f1dd7002/FLAG2e38fdd20 [2024-11-23 23:54:02,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/data/5b02b99b0/7d9ae3fe949a40d98d746a26f1dd7002 [2024-11-23 23:54:02,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:54:02,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:54:02,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:54:02,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:54:02,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:54:02,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:54:02" (1/1) ... [2024-11-23 23:54:02,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb8196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:02, skipping insertion in model container [2024-11-23 23:54:02,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:54:02" (1/1) ... [2024-11-23 23:54:02,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:54:02,728 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_016c4160-52a4-4f8d-8802-9c6e2b881347/sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c[2567,2580] [2024-11-23 23:54:02,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:54:02,934 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:54:02,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [49] [2024-11-23 23:54:02,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] [2024-11-23 23:54:02,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [116] [2024-11-23 23:54:02,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [125] [2024-11-23 23:54:02,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [226] [2024-11-23 23:54:02,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [319] [2024-11-23 23:54:02,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [685] [2024-11-23 23:54:02,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [907] [2024-11-23 23:54:02,957 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_016c4160-52a4-4f8d-8802-9c6e2b881347/sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c[2567,2580] [2024-11-23 23:54:03,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:54:03,051 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:54:03,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03 WrapperNode [2024-11-23 23:54:03,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:54:03,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:54:03,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:54:03,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:54:03,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,142 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 197 [2024-11-23 23:54:03,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:54:03,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:54:03,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:54:03,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:54:03,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,164 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,196 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]. [2024-11-23 23:54:03,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,210 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:54:03,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:54:03,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:54:03,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:54:03,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (1/1) ... [2024-11-23 23:54:03,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:54:03,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:03,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:54:03,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:54:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:54:03,319 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-23 23:54:03,319 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-23 23:54:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-23 23:54:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-23 23:54:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-23 23:54:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-23 23:54:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-23 23:54:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-23 23:54:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-23 23:54:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-23 23:54:03,320 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-23 23:54:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-23 23:54:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-23 23:54:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-23 23:54:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:54:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-23 23:54:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-23 23:54:03,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:54:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:54:03,442 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:54:03,446 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:54:03,907 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-11-23 23:54:03,907 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:54:03,921 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:54:03,922 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 23:54:03,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:54:03 BoogieIcfgContainer [2024-11-23 23:54:03,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:54:03,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:54:03,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:54:03,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:54:03,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:54:02" (1/3) ... [2024-11-23 23:54:03,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82648a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:54:03, skipping insertion in model container [2024-11-23 23:54:03,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:03" (2/3) ... [2024-11-23 23:54:03,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82648a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:54:03, skipping insertion in model container [2024-11-23 23:54:03,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:54:03" (3/3) ... [2024-11-23 23:54:03,937 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2024-11-23 23:54:03,958 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:54:03,960 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product32.cil.c that has 9 procedures, 89 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-23 23:54:04,037 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:54:04,052 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;@50bb014b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:54:04,052 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:54:04,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 74 states have internal predecessors, (90), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:54:04,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-23 23:54:04,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:04,072 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:04,073 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:04,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:04,078 INFO L85 PathProgramCache]: Analyzing trace with hash -307913188, now seen corresponding path program 1 times [2024-11-23 23:54:04,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:04,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59356521] [2024-11-23 23:54:04,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:04,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:04,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:04,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:04,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59356521] [2024-11-23 23:54:04,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59356521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:04,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:04,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:54:04,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413070347] [2024-11-23 23:54:04,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:04,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:54:04,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:04,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:54:04,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:54:04,381 INFO L87 Difference]: Start difference. First operand has 89 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 74 states have internal predecessors, (90), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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) [2024-11-23 23:54:04,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:04,437 INFO L93 Difference]: Finished difference Result 170 states and 231 transitions. [2024-11-23 23:54:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:54:04,442 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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 [2024-11-23 23:54:04,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:04,456 INFO L225 Difference]: With dead ends: 170 [2024-11-23 23:54:04,457 INFO L226 Difference]: Without dead ends: 80 [2024-11-23 23:54:04,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:54:04,469 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:04,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:04,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-23 23:54:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-23 23:54:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 66 states have internal predecessors, (76), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-23 23:54:04,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 103 transitions. [2024-11-23 23:54:04,542 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 103 transitions. Word has length 19 [2024-11-23 23:54:04,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:04,543 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 103 transitions. [2024-11-23 23:54:04,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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) [2024-11-23 23:54:04,544 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 103 transitions. [2024-11-23 23:54:04,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-23 23:54:04,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:04,546 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:04,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:54:04,547 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:04,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash 466583126, now seen corresponding path program 1 times [2024-11-23 23:54:04,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:04,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926508922] [2024-11-23 23:54:04,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:04,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:04,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:04,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926508922] [2024-11-23 23:54:04,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926508922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:04,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:04,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:54:04,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650649717] [2024-11-23 23:54:04,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:04,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:04,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:04,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:04,799 INFO L87 Difference]: Start difference. First operand 80 states and 103 transitions. 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) [2024-11-23 23:54:04,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:04,837 INFO L93 Difference]: Finished difference Result 123 states and 157 transitions. [2024-11-23 23:54:04,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:04,838 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 [2024-11-23 23:54:04,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:04,839 INFO L225 Difference]: With dead ends: 123 [2024-11-23 23:54:04,839 INFO L226 Difference]: Without dead ends: 72 [2024-11-23 23:54:04,840 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 [2024-11-23 23:54:04,844 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 17 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 161 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 [2024-11-23 23:54:04,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 161 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-23 23:54:04,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-23 23:54:04,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 53 states have (on average 1.320754716981132) internal successors, (70), 61 states have internal predecessors, (70), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-23 23:54:04,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2024-11-23 23:54:04,871 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 19 [2024-11-23 23:54:04,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:04,872 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2024-11-23 23:54:04,872 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) [2024-11-23 23:54:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2024-11-23 23:54:04,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-23 23:54:04,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:04,874 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] [2024-11-23 23:54:04,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:54:04,875 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:04,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash 558635677, now seen corresponding path program 1 times [2024-11-23 23:54:04,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:04,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383099702] [2024-11-23 23:54:04,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:04,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:05,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:05,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:05,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383099702] [2024-11-23 23:54:05,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383099702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:05,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:05,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:54:05,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396138623] [2024-11-23 23:54:05,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:05,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:54:05,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:05,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:54:05,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:54:05,121 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-23 23:54:05,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:05,234 INFO L93 Difference]: Finished difference Result 174 states and 227 transitions. [2024-11-23 23:54:05,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:54:05,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 24 [2024-11-23 23:54:05,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:05,237 INFO L225 Difference]: With dead ends: 174 [2024-11-23 23:54:05,237 INFO L226 Difference]: Without dead ends: 109 [2024-11-23 23:54:05,238 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 [2024-11-23 23:54:05,239 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 85 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:05,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 343 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:05,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-23 23:54:05,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2024-11-23 23:54:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 90 states have internal predecessors, (107), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (16), 10 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-23 23:54:05,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 138 transitions. [2024-11-23 23:54:05,262 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 138 transitions. Word has length 24 [2024-11-23 23:54:05,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:05,262 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 138 transitions. [2024-11-23 23:54:05,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-23 23:54:05,263 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 138 transitions. [2024-11-23 23:54:05,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-23 23:54:05,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:05,264 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] [2024-11-23 23:54:05,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:54:05,265 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:05,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:05,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1610339968, now seen corresponding path program 1 times [2024-11-23 23:54:05,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:05,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027617135] [2024-11-23 23:54:05,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:05,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:05,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:05,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:05,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027617135] [2024-11-23 23:54:05,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027617135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:05,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:05,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:54:05,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969514798] [2024-11-23 23:54:05,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:05,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:54:05,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:05,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:54:05,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:54:05,560 INFO L87 Difference]: Start difference. First operand 106 states and 138 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) [2024-11-23 23:54:05,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:05,688 INFO L93 Difference]: Finished difference Result 292 states and 397 transitions. [2024-11-23 23:54:05,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:54:05,689 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 [2024-11-23 23:54:05,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:05,692 INFO L225 Difference]: With dead ends: 292 [2024-11-23 23:54:05,692 INFO L226 Difference]: Without dead ends: 193 [2024-11-23 23:54:05,694 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 [2024-11-23 23:54:05,695 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 59 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:05,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 335 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:54:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-23 23:54:05,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-11-23 23:54:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.3380281690140845) internal successors, (190), 161 states have internal predecessors, (190), 30 states have call successors, (30), 22 states have call predecessors, (30), 20 states have return successors, (35), 18 states have call predecessors, (35), 30 states have call successors, (35) [2024-11-23 23:54:05,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 255 transitions. [2024-11-23 23:54:05,736 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 255 transitions. Word has length 27 [2024-11-23 23:54:05,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:05,736 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 255 transitions. [2024-11-23 23:54:05,737 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) [2024-11-23 23:54:05,737 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 255 transitions. [2024-11-23 23:54:05,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-23 23:54:05,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:05,740 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] [2024-11-23 23:54:05,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:54:05,740 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:05,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1677203707, now seen corresponding path program 1 times [2024-11-23 23:54:05,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:05,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861164862] [2024-11-23 23:54:05,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:05,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:05,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:05,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:05,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861164862] [2024-11-23 23:54:05,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861164862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:05,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:05,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:54:05,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648265779] [2024-11-23 23:54:05,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:05,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:05,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:05,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:05,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:05,831 INFO L87 Difference]: Start difference. First operand 193 states and 255 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) [2024-11-23 23:54:05,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:05,898 INFO L93 Difference]: Finished difference Result 325 states and 440 transitions. [2024-11-23 23:54:05,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:05,902 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 [2024-11-23 23:54:05,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:05,904 INFO L225 Difference]: With dead ends: 325 [2024-11-23 23:54:05,904 INFO L226 Difference]: Without dead ends: 139 [2024-11-23 23:54:05,907 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 [2024-11-23 23:54:05,911 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:05,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 53 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:05,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-23 23:54:05,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2024-11-23 23:54:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 113 states have internal predecessors, (134), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (18), 14 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-23 23:54:05,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2024-11-23 23:54:05,962 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 29 [2024-11-23 23:54:05,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:05,964 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2024-11-23 23:54:05,965 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) [2024-11-23 23:54:05,965 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2024-11-23 23:54:05,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-23 23:54:05,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:05,969 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] [2024-11-23 23:54:05,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:54:05,969 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:05,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:05,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1232288742, now seen corresponding path program 1 times [2024-11-23 23:54:05,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:05,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826178382] [2024-11-23 23:54:05,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:05,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:54:06,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:06,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826178382] [2024-11-23 23:54:06,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826178382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:06,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:06,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:54:06,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136876302] [2024-11-23 23:54:06,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:06,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:54:06,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:06,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:54:06,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:54:06,181 INFO L87 Difference]: Start difference. First operand 137 states and 168 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) [2024-11-23 23:54:06,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:06,283 INFO L93 Difference]: Finished difference Result 137 states and 168 transitions. [2024-11-23 23:54:06,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:54:06,284 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 [2024-11-23 23:54:06,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:06,286 INFO L225 Difference]: With dead ends: 137 [2024-11-23 23:54:06,286 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:54:06,287 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 [2024-11-23 23:54:06,291 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 32 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:06,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 145 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:54:06,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:54:06,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:54:06,293 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) [2024-11-23 23:54:06,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:54:06,293 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2024-11-23 23:54:06,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:06,293 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:54:06,293 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) [2024-11-23 23:54:06,293 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:54:06,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:54:06,302 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:54:06,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:54:06,306 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-23 23:54:06,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:54:07,167 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:54:07,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:54:07 BoogieIcfgContainer [2024-11-23 23:54:07,192 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:54:07,195 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:54:07,195 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:54:07,195 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:54:07,196 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:54:03" (3/4) ... [2024-11-23 23:54:07,200 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:54:07,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-23 23:54:07,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-23 23:54:07,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-23 23:54:07,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-23 23:54:07,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-23 23:54:07,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-23 23:54:07,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-23 23:54:07,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-23 23:54:07,221 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-23 23:54:07,222 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-23 23:54:07,223 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-23 23:54:07,224 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:54:07,224 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:54:07,376 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:54:07,376 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:54:07,377 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:54:07,378 INFO L158 Benchmark]: Toolchain (without parser) took 4980.47ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 60.9MB in the end (delta: 45.0MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-11-23 23:54:07,380 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:54:07,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.90ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 86.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:54:07,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.69ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 85.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:54:07,382 INFO L158 Benchmark]: Boogie Preprocessor took 74.57ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:54:07,382 INFO L158 Benchmark]: RCFGBuilder took 699.65ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 66.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:54:07,382 INFO L158 Benchmark]: TraceAbstraction took 3267.78ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 68.3MB in the end (delta: -2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:54:07,383 INFO L158 Benchmark]: Witness Printer took 182.64ms. Allocated memory is still 142.6MB. Free memory was 67.6MB in the beginning and 60.9MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:54:07,385 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.90ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 86.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.69ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 85.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 74.57ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 699.65ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 66.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3267.78ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 68.3MB in the end (delta: -2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 182.64ms. Allocated memory is still 142.6MB. Free memory was 67.6MB in the beginning and 60.9MB in the end (delta: 6.7MB). 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,"Specification4_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] - GenericResultAtLocation [Line: 116]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [116] - GenericResultAtLocation [Line: 125]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [125] - GenericResultAtLocation [Line: 226]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [226] - GenericResultAtLocation [Line: 319]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [319] - GenericResultAtLocation [Line: 685]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [685] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [907] * 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: 121]: 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 9 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 1149 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 658 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 491 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 917]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) RESULT: Ultimate proved your program to be correct! [2024-11-23 23:54:07,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016c4160-52a4-4f8d-8802-9c6e2b881347/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE