./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product15.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_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/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_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/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_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/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 3ff5e3440a113d04736761f02383989df8ff41baa6c3f7c82a502839a05f4fda --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:29:45,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:29:46,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:29:46,057 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:29:46,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:29:46,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:29:46,093 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:29:46,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:29:46,094 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:29:46,094 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:29:46,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:29:46,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:29:46,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:29:46,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:29:46,097 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:29:46,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:29:46,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:29:46,097 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:29:46,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:29:46,098 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:46,098 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:46,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:46,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:29:46,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:29:46,100 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:29:46,100 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:29:46,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:29:46,100 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_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/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 -> 3ff5e3440a113d04736761f02383989df8ff41baa6c3f7c82a502839a05f4fda [2024-11-28 04:29:46,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:29:46,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:29:46,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:29:46,422 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:29:46,423 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:29:46,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2024-11-28 04:29:49,468 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/data/6f2e86a6e/4be2de8b6ca044bcb6a7c4093399627f/FLAG8e2ebb998 [2024-11-28 04:29:49,819 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:29:49,820 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2024-11-28 04:29:49,842 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/data/6f2e86a6e/4be2de8b6ca044bcb6a7c4093399627f/FLAG8e2ebb998 [2024-11-28 04:29:49,865 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/data/6f2e86a6e/4be2de8b6ca044bcb6a7c4093399627f [2024-11-28 04:29:49,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:29:49,870 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:29:49,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:49,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:29:49,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:29:49,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:49" (1/1) ... [2024-11-28 04:29:49,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b156afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:49, skipping insertion in model container [2024-11-28 04:29:49,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:49" (1/1) ... [2024-11-28 04:29:49,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:29:50,145 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_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c[2141,2154] [2024-11-28 04:29:50,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:50,316 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:29:50,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-28 04:29:50,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2024-11-28 04:29:50,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [96] [2024-11-28 04:29:50,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [168] [2024-11-28 04:29:50,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [341] [2024-11-28 04:29:50,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [707] [2024-11-28 04:29:50,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [788] [2024-11-28 04:29:50,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [884] [2024-11-28 04:29:50,332 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_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c[2141,2154] [2024-11-28 04:29:50,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:50,415 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:29:50,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50 WrapperNode [2024-11-28 04:29:50,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:50,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:50,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:29:50,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:29:50,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,457 INFO L138 Inliner]: procedures = 52, calls = 96, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 162 [2024-11-28 04:29:50,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:50,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:29:50,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:29:50,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:29:50,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,483 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]. [2024-11-28 04:29:50,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:29:50,502 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:29:50,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:29:50,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:29:50,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (1/1) ... [2024-11-28 04:29:50,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:50,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:50,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:29:50,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:29:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:29:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 04:29:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 04:29:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 04:29:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 04:29:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 04:29:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 04:29:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-28 04:29:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-28 04:29:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-28 04:29:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-28 04:29:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-28 04:29:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-28 04:29:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:29:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 04:29:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 04:29:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:29:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:29:50,655 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:29:50,658 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:29:50,998 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-28 04:29:50,998 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:29:51,015 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:29:51,015 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:29:51,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:51 BoogieIcfgContainer [2024-11-28 04:29:51,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:29:51,020 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:29:51,020 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:29:51,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:29:51,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:29:49" (1/3) ... [2024-11-28 04:29:51,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0e2c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:51, skipping insertion in model container [2024-11-28 04:29:51,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:50" (2/3) ... [2024-11-28 04:29:51,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0e2c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:51, skipping insertion in model container [2024-11-28 04:29:51,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:51" (3/3) ... [2024-11-28 04:29:51,030 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product15.cil.c [2024-11-28 04:29:51,050 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:29:51,054 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product15.cil.c that has 8 procedures, 76 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 04:29:51,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:29:51,151 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;@14531bae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:29:51,151 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:29:51,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 63 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 04:29:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:29:51,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:51,166 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:51,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:51,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:51,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1172482951, now seen corresponding path program 1 times [2024-11-28 04:29:51,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:51,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076102925] [2024-11-28 04:29:51,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:51,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:51,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:51,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:51,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076102925] [2024-11-28 04:29:51,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076102925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:51,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:51,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:29:51,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13820774] [2024-11-28 04:29:51,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:51,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:29:51,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:51,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:29:51,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:29:51,383 INFO L87 Difference]: Start difference. First operand has 76 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 63 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) 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) [2024-11-28 04:29:51,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:51,416 INFO L93 Difference]: Finished difference Result 144 states and 195 transitions. [2024-11-28 04:29:51,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:29:51,417 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 [2024-11-28 04:29:51,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:51,441 INFO L225 Difference]: With dead ends: 144 [2024-11-28 04:29:51,441 INFO L226 Difference]: Without dead ends: 67 [2024-11-28 04:29:51,444 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 [2024-11-28 04:29:51,446 INFO L435 NwaCegarLoop]: 94 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, 94 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 [2024-11-28 04:29:51,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:51,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-28 04:29:51,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-28 04:29:51,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 55 states have internal predecessors, (64), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:29:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2024-11-28 04:29:51,485 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 19 [2024-11-28 04:29:51,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:51,486 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2024-11-28 04:29:51,486 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) [2024-11-28 04:29:51,486 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2024-11-28 04:29:51,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:29:51,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:51,488 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:51,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:29:51,488 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:51,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:51,489 INFO L85 PathProgramCache]: Analyzing trace with hash -397986637, now seen corresponding path program 1 times [2024-11-28 04:29:51,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:51,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188455472] [2024-11-28 04:29:51,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:51,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:51,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:51,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188455472] [2024-11-28 04:29:51,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188455472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:51,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:51,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:51,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054932358] [2024-11-28 04:29:51,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:51,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:51,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:51,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:51,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:51,624 INFO L87 Difference]: Start difference. First operand 67 states and 85 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) [2024-11-28 04:29:51,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:51,649 INFO L93 Difference]: Finished difference Result 98 states and 122 transitions. [2024-11-28 04:29:51,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:51,651 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 [2024-11-28 04:29:51,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:51,652 INFO L225 Difference]: With dead ends: 98 [2024-11-28 04:29:51,652 INFO L226 Difference]: Without dead ends: 59 [2024-11-28 04:29:51,653 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 [2024-11-28 04:29:51,656 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 16 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 126 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 [2024-11-28 04:29:51,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:51,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-28 04:29:51,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-28 04:29:51,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 50 states have internal predecessors, (58), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:29:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2024-11-28 04:29:51,666 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 19 [2024-11-28 04:29:51,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:51,666 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2024-11-28 04:29:51,666 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) [2024-11-28 04:29:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2024-11-28 04:29:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 04:29:51,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:51,668 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] [2024-11-28 04:29:51,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:29:51,668 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:51,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:51,669 INFO L85 PathProgramCache]: Analyzing trace with hash 339777998, now seen corresponding path program 1 times [2024-11-28 04:29:51,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:51,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266807988] [2024-11-28 04:29:51,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:51,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:51,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:51,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266807988] [2024-11-28 04:29:51,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266807988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:51,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:51,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:29:51,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250968054] [2024-11-28 04:29:51,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:51,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:51,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:51,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:51,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:51,848 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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) [2024-11-28 04:29:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:51,873 INFO L93 Difference]: Finished difference Result 162 states and 208 transitions. [2024-11-28 04:29:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:51,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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 [2024-11-28 04:29:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:51,876 INFO L225 Difference]: With dead ends: 162 [2024-11-28 04:29:51,876 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 04:29:51,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:51,877 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 55 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:51,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 149 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:51,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 04:29:51,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2024-11-28 04:29:51,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 78 states have (on average 1.3461538461538463) internal successors, (105), 89 states have internal predecessors, (105), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:29:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 137 transitions. [2024-11-28 04:29:51,901 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 137 transitions. Word has length 23 [2024-11-28 04:29:51,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:51,901 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 137 transitions. [2024-11-28 04:29:51,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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) [2024-11-28 04:29:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 137 transitions. [2024-11-28 04:29:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:29:51,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:51,903 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] [2024-11-28 04:29:51,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:29:51,903 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:51,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:51,904 INFO L85 PathProgramCache]: Analyzing trace with hash 99465918, now seen corresponding path program 1 times [2024-11-28 04:29:51,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:51,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183693391] [2024-11-28 04:29:51,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:51,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:52,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:52,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183693391] [2024-11-28 04:29:52,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183693391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:52,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:52,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:52,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806302295] [2024-11-28 04:29:52,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:52,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:52,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:52,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:52,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:52,090 INFO L87 Difference]: Start difference. First operand 107 states and 137 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-28 04:29:52,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:52,212 INFO L93 Difference]: Finished difference Result 295 states and 392 transitions. [2024-11-28 04:29:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:52,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 28 [2024-11-28 04:29:52,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:52,215 INFO L225 Difference]: With dead ends: 295 [2024-11-28 04:29:52,220 INFO L226 Difference]: Without dead ends: 195 [2024-11-28 04:29:52,221 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 [2024-11-28 04:29:52,222 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 42 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:52,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 267 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:52,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-28 04:29:52,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-28 04:29:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 140 states have (on average 1.3285714285714285) internal successors, (186), 159 states have internal predecessors, (186), 32 states have call successors, (32), 24 states have call predecessors, (32), 22 states have return successors, (34), 20 states have call predecessors, (34), 32 states have call successors, (34) [2024-11-28 04:29:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 252 transitions. [2024-11-28 04:29:52,282 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 252 transitions. Word has length 28 [2024-11-28 04:29:52,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:52,283 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 252 transitions. [2024-11-28 04:29:52,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-28 04:29:52,283 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 252 transitions. [2024-11-28 04:29:52,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 04:29:52,286 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:52,286 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] [2024-11-28 04:29:52,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:29:52,287 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:52,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:52,287 INFO L85 PathProgramCache]: Analyzing trace with hash -797087239, now seen corresponding path program 1 times [2024-11-28 04:29:52,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:52,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023282134] [2024-11-28 04:29:52,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:52,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:52,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:52,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023282134] [2024-11-28 04:29:52,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023282134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:52,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:52,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:52,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190462269] [2024-11-28 04:29:52,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:52,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:52,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:52,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:52,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:52,384 INFO L87 Difference]: Start difference. First operand 195 states and 252 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 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) [2024-11-28 04:29:52,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:52,412 INFO L93 Difference]: Finished difference Result 325 states and 429 transitions. [2024-11-28 04:29:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:52,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 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 30 [2024-11-28 04:29:52,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:52,415 INFO L225 Difference]: With dead ends: 325 [2024-11-28 04:29:52,415 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 04:29:52,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:52,417 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:52,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 48 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:52,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 04:29:52,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-11-28 04:29:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 104 states have (on average 1.2692307692307692) internal successors, (132), 111 states have internal predecessors, (132), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:29:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 164 transitions. [2024-11-28 04:29:52,470 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 164 transitions. Word has length 30 [2024-11-28 04:29:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:52,470 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 164 transitions. [2024-11-28 04:29:52,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 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) [2024-11-28 04:29:52,471 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 164 transitions. [2024-11-28 04:29:52,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:29:52,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:52,472 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] [2024-11-28 04:29:52,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:29:52,472 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:52,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:52,473 INFO L85 PathProgramCache]: Analyzing trace with hash 308583224, now seen corresponding path program 1 times [2024-11-28 04:29:52,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:52,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972208892] [2024-11-28 04:29:52,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:52,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:52,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:52,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972208892] [2024-11-28 04:29:52,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972208892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:52,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:52,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:52,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117056400] [2024-11-28 04:29:52,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:52,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:52,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:52,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:52,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:52,590 INFO L87 Difference]: Start difference. First operand 135 states and 164 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:29:52,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:52,655 INFO L93 Difference]: Finished difference Result 135 states and 164 transitions. [2024-11-28 04:29:52,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:52,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-28 04:29:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:52,659 INFO L225 Difference]: With dead ends: 135 [2024-11-28 04:29:52,659 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:29:52,660 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 [2024-11-28 04:29:52,660 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 27 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:52,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 130 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:52,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:29:52,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:29:52,665 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) [2024-11-28 04:29:52,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:29:52,665 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2024-11-28 04:29:52,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:52,665 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:29:52,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:29:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:29:52,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:29:52,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:29:52,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:29:52,674 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 04:29:52,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:29:53,299 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:29:53,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:29:53 BoogieIcfgContainer [2024-11-28 04:29:53,317 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:29:53,318 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:29:53,319 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:29:53,319 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:29:53,320 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:51" (3/4) ... [2024-11-28 04:29:53,326 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:29:53,331 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-28 04:29:53,332 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-28 04:29:53,332 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-28 04:29:53,332 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-28 04:29:53,332 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-28 04:29:53,332 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-28 04:29:53,332 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-28 04:29:53,341 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-28 04:29:53,342 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 04:29:53,343 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 04:29:53,343 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:29:53,343 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:29:53,465 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:29:53,465 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:29:53,465 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:29:53,467 INFO L158 Benchmark]: Toolchain (without parser) took 3596.90ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 38.7MB in the end (delta: 53.3MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2024-11-28 04:29:53,467 INFO L158 Benchmark]: CDTParser took 1.24ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:29:53,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.64ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:29:53,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.70ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:29:53,470 INFO L158 Benchmark]: Boogie Preprocessor took 39.06ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:29:53,470 INFO L158 Benchmark]: RCFGBuilder took 516.26ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 55.3MB in the end (delta: 14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:29:53,470 INFO L158 Benchmark]: TraceAbstraction took 2296.83ms. Allocated memory is still 117.4MB. Free memory was 54.9MB in the beginning and 45.5MB in the end (delta: 9.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-11-28 04:29:53,470 INFO L158 Benchmark]: Witness Printer took 147.81ms. Allocated memory is still 117.4MB. Free memory was 45.5MB in the beginning and 38.7MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:29:53,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.64ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.70ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.06ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 516.26ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 55.3MB in the end (delta: 14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2296.83ms. Allocated memory is still 117.4MB. Free memory was 54.9MB in the beginning and 45.5MB in the end (delta: 9.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 147.81ms. Allocated memory is still 117.4MB. Free memory was 45.5MB in the beginning and 38.7MB 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [96] - GenericResultAtLocation [Line: 168]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [168] - GenericResultAtLocation [Line: 341]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [341] - GenericResultAtLocation [Line: 707]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [707] - GenericResultAtLocation [Line: 788]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [788] - GenericResultAtLocation [Line: 884]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [884] * 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: 92]: 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, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 177 mSDsluCounter, 814 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 401 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 413 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 0.6s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 303 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: 112]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 111]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 04:29:53,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ed85c8-0d84-49d0-8f02-15ea8cb34bb6/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