./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya --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 fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:17:14,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:17:14,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 03:17:14,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:17:14,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:17:14,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:17:14,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:17:14,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:17:14,248 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:17:14,248 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:17:14,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:17:14,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:17:14,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:17:14,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:17:14,251 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:17:14,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:17:14,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:17:14,253 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:17:14,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:17:14,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:17:14,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:17:14,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:17:14,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:17:14,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:17:14,256 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:17:14,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:17:14,257 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:17:14,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:17:14,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:17:14,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:17:14,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:17:14,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:17:14,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:17:14,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:17:14,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:17:14,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:17:14,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:17:14,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:17:14,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:17:14,261 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:17:14,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:17:14,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:17:14,262 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc [2023-11-29 03:17:14,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:17:14,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:17:14,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:17:14,490 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:17:14,491 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:17:14,492 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2023-11-29 03:17:17,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:17:17,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:17:17,526 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2023-11-29 03:17:17,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/data/6fcee798e/4db021499e484cbc9c1fa0cee1a65c66/FLAGf7ac5e0f3 [2023-11-29 03:17:17,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/data/6fcee798e/4db021499e484cbc9c1fa0cee1a65c66 [2023-11-29 03:17:17,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:17:17,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:17:17,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:17:17,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:17:17,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:17:17,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:17:17" (1/1) ... [2023-11-29 03:17:17,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695a958d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:17, skipping insertion in model container [2023-11-29 03:17:17,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:17:17" (1/1) ... [2023-11-29 03:17:17,922 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:17:18,108 WARN L240 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_742ca6ae-db0d-4e3f-9679-d2b3e686603b/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2023-11-29 03:17:18,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:17:18,174 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:17:18,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-29 03:17:18,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2023-11-29 03:17:18,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [292] [2023-11-29 03:17:18,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [364] [2023-11-29 03:17:18,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [454] [2023-11-29 03:17:18,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [550] [2023-11-29 03:17:18,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [559] [2023-11-29 03:17:18,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [593] [2023-11-29 03:17:18,207 WARN L240 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_742ca6ae-db0d-4e3f-9679-d2b3e686603b/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2023-11-29 03:17:18,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:17:18,258 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:17:18,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18 WrapperNode [2023-11-29 03:17:18,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:17:18,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:17:18,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:17:18,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:17:18,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,306 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 23, calls inlined = 18, statements flattened = 178 [2023-11-29 03:17:18,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:17:18,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:17:18,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:17:18,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:17:18,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,333 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]. [2023-11-29 03:17:18,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,334 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:17:18,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:17:18,349 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:17:18,350 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:17:18,350 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (1/1) ... [2023-11-29 03:17:18,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:17:18,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:17:18,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:17:18,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:17:18,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:17:18,405 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 03:17:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 03:17:18,405 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 03:17:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 03:17:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-29 03:17:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-29 03:17:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 03:17:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 03:17:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 03:17:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 03:17:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-29 03:17:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-29 03:17:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:17:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 03:17:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 03:17:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:17:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:17:18,479 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:17:18,481 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:17:18,681 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:17:18,739 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:17:18,739 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 03:17:18,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:17:18 BoogieIcfgContainer [2023-11-29 03:17:18,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:17:18,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:17:18,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:17:18,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:17:18,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:17:17" (1/3) ... [2023-11-29 03:17:18,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693b8ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:17:18, skipping insertion in model container [2023-11-29 03:17:18,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:17:18" (2/3) ... [2023-11-29 03:17:18,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693b8ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:17:18, skipping insertion in model container [2023-11-29 03:17:18,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:17:18" (3/3) ... [2023-11-29 03:17:18,748 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2023-11-29 03:17:18,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:17:18,768 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:17:18,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:17:18,813 INFO L357 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, mHoare=true, 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;@6510f72c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:17:18,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:17:18,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 43 states have (on average 1.558139534883721) internal successors, (67), 50 states have internal predecessors, (67), 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) [2023-11-29 03:17:18,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 03:17:18,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:17:18,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:17:18,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:17:18,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:17:18,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1127490717, now seen corresponding path program 1 times [2023-11-29 03:17:18,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:17:18,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101459313] [2023-11-29 03:17:18,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:17:18,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:17:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 03:17:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:17:19,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:17:19,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101459313] [2023-11-29 03:17:19,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101459313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:17:19,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:17:19,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:17:19,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739386888] [2023-11-29 03:17:19,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:17:19,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:17:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:17:19,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:17:19,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:17:19,056 INFO L87 Difference]: Start difference. First operand has 63 states, 43 states have (on average 1.558139534883721) internal successors, (67), 50 states have internal predecessors, (67), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:17:19,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:17:19,111 INFO L93 Difference]: Finished difference Result 124 states and 179 transitions. [2023-11-29 03:17:19,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:17:19,113 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-29 03:17:19,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:17:19,120 INFO L225 Difference]: With dead ends: 124 [2023-11-29 03:17:19,120 INFO L226 Difference]: Without dead ends: 58 [2023-11-29 03:17:19,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:17:19,128 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:17:19,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:17:19,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-29 03:17:19,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-29 03:17:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.425) internal successors, (57), 46 states have internal predecessors, (57), 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) [2023-11-29 03:17:19,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions. [2023-11-29 03:17:19,164 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 17 [2023-11-29 03:17:19,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:17:19,164 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 78 transitions. [2023-11-29 03:17:19,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:17:19,164 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions. [2023-11-29 03:17:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 03:17:19,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:17:19,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:17:19,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:17:19,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:17:19,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:17:19,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1649837355, now seen corresponding path program 1 times [2023-11-29 03:17:19,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:17:19,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533433664] [2023-11-29 03:17:19,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:17:19,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:17:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 03:17:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:17:19,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:17:19,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533433664] [2023-11-29 03:17:19,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533433664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:17:19,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:17:19,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:17:19,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762468084] [2023-11-29 03:17:19,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:17:19,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:17:19,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:17:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:17:19,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:17:19,266 INFO L87 Difference]: Start difference. First operand 58 states and 78 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:17:19,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:17:19,298 INFO L93 Difference]: Finished difference Result 86 states and 114 transitions. [2023-11-29 03:17:19,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:17:19,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-29 03:17:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:17:19,300 INFO L225 Difference]: With dead ends: 86 [2023-11-29 03:17:19,300 INFO L226 Difference]: Without dead ends: 50 [2023-11-29 03:17:19,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:17:19,303 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:17:19,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 94 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:17:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-29 03:17:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-29 03:17:19,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.457142857142857) internal successors, (51), 41 states have internal predecessors, (51), 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) [2023-11-29 03:17:19,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2023-11-29 03:17:19,312 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 18 [2023-11-29 03:17:19,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:17:19,312 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2023-11-29 03:17:19,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:17:19,313 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2023-11-29 03:17:19,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 03:17:19,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:17:19,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:17:19,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:17:19,314 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:17:19,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:17:19,315 INFO L85 PathProgramCache]: Analyzing trace with hash -175676379, now seen corresponding path program 1 times [2023-11-29 03:17:19,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:17:19,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662766413] [2023-11-29 03:17:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:17:19,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:17:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:17:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:17:19,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:17:19,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662766413] [2023-11-29 03:17:19,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662766413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:17:19,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:17:19,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:17:19,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549427639] [2023-11-29 03:17:19,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:17:19,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:17:19,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:17:19,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:17:19,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:17:19,422 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-29 03:17:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:17:19,512 INFO L93 Difference]: Finished difference Result 136 states and 184 transitions. [2023-11-29 03:17:19,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:17:19,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21 [2023-11-29 03:17:19,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:17:19,515 INFO L225 Difference]: With dead ends: 136 [2023-11-29 03:17:19,515 INFO L226 Difference]: Without dead ends: 88 [2023-11-29 03:17:19,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:17:19,518 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 90 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:17:19,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 147 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:17:19,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-29 03:17:19,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2023-11-29 03:17:19,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 69 states have internal predecessors, (88), 13 states have call successors, (13), 11 states have call predecessors, (13), 11 states have return successors, (14), 10 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 03:17:19,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 115 transitions. [2023-11-29 03:17:19,537 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 115 transitions. Word has length 21 [2023-11-29 03:17:19,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:17:19,538 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 115 transitions. [2023-11-29 03:17:19,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-29 03:17:19,538 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 115 transitions. [2023-11-29 03:17:19,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 03:17:19,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:17:19,540 INFO L195 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] [2023-11-29 03:17:19,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:17:19,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:17:19,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:17:19,541 INFO L85 PathProgramCache]: Analyzing trace with hash 387487311, now seen corresponding path program 1 times [2023-11-29 03:17:19,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:17:19,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747872763] [2023-11-29 03:17:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:17:19,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:17:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:19,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 03:17:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:19,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:17:19,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:17:19,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747872763] [2023-11-29 03:17:19,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747872763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:17:19,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:17:19,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:17:19,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069192941] [2023-11-29 03:17:19,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:17:19,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:17:19,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:17:19,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:17:19,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:17:19,681 INFO L87 Difference]: Start difference. First operand 85 states and 115 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-29 03:17:19,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:17:19,757 INFO L93 Difference]: Finished difference Result 243 states and 342 transitions. [2023-11-29 03:17:19,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:17:19,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 24 [2023-11-29 03:17:19,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:17:19,761 INFO L225 Difference]: With dead ends: 243 [2023-11-29 03:17:19,761 INFO L226 Difference]: Without dead ends: 160 [2023-11-29 03:17:19,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:17:19,764 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 39 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:17:19,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 154 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:17:19,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-29 03:17:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2023-11-29 03:17:19,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 111 states have (on average 1.4324324324324325) internal successors, (159), 126 states have internal predecessors, (159), 26 states have call successors, (26), 22 states have call predecessors, (26), 20 states have return successors, (31), 18 states have call predecessors, (31), 26 states have call successors, (31) [2023-11-29 03:17:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 216 transitions. [2023-11-29 03:17:19,792 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 216 transitions. Word has length 24 [2023-11-29 03:17:19,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:17:19,793 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 216 transitions. [2023-11-29 03:17:19,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-29 03:17:19,793 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 216 transitions. [2023-11-29 03:17:19,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 03:17:19,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:17:19,796 INFO L195 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] [2023-11-29 03:17:19,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:17:19,796 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:17:19,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:17:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1977839285, now seen corresponding path program 1 times [2023-11-29 03:17:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:17:19,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262319130] [2023-11-29 03:17:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:17:19,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:17:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:17:19,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:17:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:17:19,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:17:19,848 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:17:19,849 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:17:19,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:17:19,853 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 03:17:19,857 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:17:19,879 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated [2023-11-29 03:17:19,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:17:19 BoogieIcfgContainer [2023-11-29 03:17:19,890 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:17:19,890 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:17:19,891 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:17:19,891 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:17:19,891 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:17:18" (3/4) ... [2023-11-29 03:17:19,892 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 03:17:19,902 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated [2023-11-29 03:17:19,945 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:17:19,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:17:19,946 INFO L158 Benchmark]: Toolchain (without parser) took 2080.82ms. Allocated memory is still 161.5MB. Free memory was 122.6MB in the beginning and 108.6MB in the end (delta: 14.0MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-11-29 03:17:19,946 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:17:19,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.43ms. Allocated memory is still 161.5MB. Free memory was 122.6MB in the beginning and 103.3MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 03:17:19,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.67ms. Allocated memory is still 161.5MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:17:19,947 INFO L158 Benchmark]: Boogie Preprocessor took 41.34ms. Allocated memory is still 161.5MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:17:19,947 INFO L158 Benchmark]: RCFGBuilder took 390.46ms. Allocated memory is still 161.5MB. Free memory was 98.7MB in the beginning and 122.9MB in the end (delta: -24.2MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-11-29 03:17:19,948 INFO L158 Benchmark]: TraceAbstraction took 1147.78ms. Allocated memory is still 161.5MB. Free memory was 122.0MB in the beginning and 111.8MB in the end (delta: 10.2MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2023-11-29 03:17:19,948 INFO L158 Benchmark]: Witness Printer took 54.73ms. Allocated memory is still 161.5MB. Free memory was 111.8MB in the beginning and 108.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:17:19,950 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.43ms. Allocated memory is still 161.5MB. Free memory was 122.6MB in the beginning and 103.3MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.67ms. Allocated memory is still 161.5MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.34ms. Allocated memory is still 161.5MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.46ms. Allocated memory is still 161.5MB. Free memory was 98.7MB in the beginning and 122.9MB in the end (delta: -24.2MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1147.78ms. Allocated memory is still 161.5MB. Free memory was 122.0MB in the beginning and 111.8MB in the end (delta: 10.2MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Witness Printer took 54.73ms. Allocated memory is still 161.5MB. Free memory was 111.8MB in the beginning and 108.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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,"MinePump.i","") [87] - GenericResultAtLocation [Line: 292]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [292] - GenericResultAtLocation [Line: 364]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [364] - GenericResultAtLocation [Line: 454]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [454] - GenericResultAtLocation [Line: 550]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [550] - GenericResultAtLocation [Line: 559]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [559] - GenericResultAtLocation [Line: 593]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [593] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret27 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 555]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L99] int pumpRunning = 0; [L100] int systemActive = 1; [L366] int waterLevel = 1; [L367] int methaneLevelCritical = 0; [L455] int cleanupTimeShifts = 4; [L763] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L528] int retValue_acc ; [L529] int tmp ; [L533] FCALL select_helpers() [L534] FCALL select_features() [L535] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L535] RET, EXPR valid_product() [L535] tmp = valid_product() [L537] COND TRUE \read(tmp) [L539] FCALL setup() [L540] CALL runTest() [L522] CALL test() [L297] int splverifierCounter ; [L298] int tmp ; [L299] int tmp___0 ; [L300] int tmp___1 ; [L301] int tmp___2 ; [L304] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L306] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L308] COND TRUE splverifierCounter < 4 [L314] tmp = __VERIFIER_nondet_int() [L316] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L318] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L384] COND TRUE waterLevel < 2 [L385] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L318] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L324] tmp___0 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L334] tmp___2 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___2)) [L342] tmp___1 = __VERIFIER_nondet_int() [L344] COND TRUE \read(tmp___1) [L346] CALL stopSystem() [L273] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L280] systemActive = 0 [L346] RET stopSystem() [L353] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L114] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L122] CALL __utac_acc__Specification3_spec__1() [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L567] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L405] int retValue_acc ; [L408] retValue_acc = methaneLevelCritical [L409] return (retValue_acc); [L567] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L567] tmp = isMethaneLevelCritical() [L569] COND FALSE !(\read(tmp)) [L573] CALL, EXPR getWaterLevel() [L437] int retValue_acc ; [L440] retValue_acc = waterLevel [L441] return (retValue_acc); [L573] RET, EXPR getWaterLevel() [L573] tmp___0 = getWaterLevel() [L575] COND TRUE tmp___0 == 2 [L577] CALL, EXPR isPumpRunning() [L206] int retValue_acc ; [L209] retValue_acc = pumpRunning [L210] return (retValue_acc); [L577] RET, EXPR isPumpRunning() [L577] tmp___1 = isPumpRunning() [L579] COND FALSE !(\read(tmp___1)) [L583] CALL __automaton_fail() [L555] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 464 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 228 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 236 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-29 03:17:19,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_742ca6ae-db0d-4e3f-9679-d2b3e686603b/bin/uautomizer-verify-BQ2R08f2Ya/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE